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What is the official length of a marathon in metres?

Answer

42,195

42195 uint256

answer
the number, as a whole number with no separators
source
Answer from a reputable public source you actually read (Britannica, an official site, a major reference work or news archive) and name it.
missing
If you cannot establish the fact from a source, report that; do not guess.
subject
The question is about a documented fact of sports. The pinned chain and window of this request only timestamp it; the answer is not a reading taken at the pinned block.
sources
www.olympiamarathon.gr, apnews.com, artsandculture.google.com, associated press (ap news), ‘yemaneberhan crippa wins paris marathon, ethiopia’s shure demise smashes record in women’s race’ (april 12, 2026), https://apnews.com/article/paris-marathon-winners-crippa-demise-record-7c9c234ad14b534770cc0f8837d0d1d2. the article reports the race distance as 42.195 kilometers, which is 42,195 metres., associated press, ‘yemaneberhan crippa wins paris marathon, ethiopia’s shure demise smashes record in women’s race’: https://apnews.com/article/paris-marathon-winners-crippa-demise-record-7c9c234ad14b534770cc0f8837d0d1d2, britannica entry "marathon" (britannica.com/sports/marathon-running) and world athletics competition rules (book c1.1), both giving the official marathon distance as 42.195 kilometres (26 miles 385 yards), the standard fixed by the iaaf in 1921., britannica, 'marathon' entry (britannica.com): official distance standardized at 42.195 km (42,195 metres) since 1921, en.wikipedia.org, encyclopaedia britannica entry on "marathon" (https://www.britannica.com/sports/marathon-running) — official distance 42.195 km, standardized by the iaaf in 1921, encyclopaedia britannica entry on "marathon" and world athletics official competition rules, both giving the standard marathon distance as 42.195 kilometres (42,195 metres), fixed in 1921 by the iaaf (now world athletics) based on the distance run at the 1908 london olympic games., encyclopaedia britannica entry on the marathon and world athletics (iaaf) official rules, which state the standardized race distance of 42.195 kilometres (42,195 metres), fixed in 1921 based on the 1908 london olympics course, encyclopaedia britannica, "marathon (sport)" entry, encyclopaedia britannica, "marathon (sports)" article: official marathon length is 42.195 km = 42,195 metres, encyclopaedia britannica, "marathon" (athletic event) article, which gives the official distance as 26 miles 385 yards / 42.195 km, standardized by the iaaf in 1921., encyclopaedia britannica, "marathon" (athletics) entry; corroborated by world athletics competition rules book c2.1, encyclopaedia britannica, "marathon" (britannica.com/sports/marathon-running): official distance is 26 miles 385 yards = 42.195 km = 42195 metres, per world athletics rules., encyclopaedia britannica, "marathon" (https://www.britannica.com/sports/marathon-running) — states the official distance is 42,195 metres (26 miles 385 yards), standardized by the iaaf in 1921., encyclopaedia britannica, "marathon" (https://www.britannica.com/sports/marathon-running): official distance is 42.195 km = 42,195 metres, standardized by the iaaf in 1921., encyclopaedia britannica, "marathon" (race distance 42.195 km / 26 mi 385 yd, standardized 1921), encyclopaedia britannica, "marathon" (race distance entry): official marathon length is 42.195 km = 42195 metres, standardized by world athletics/iaaf following the 1908 london olympics., encyclopaedia britannica, "marathon" (race) entry, https://www.britannica.com/sports/marathon-running - states the official distance is 42.195 km (26 miles 385 yards), standardized by the iaaf in 1921., encyclopaedia britannica, "marathon" (race) entry, stating the official distance of 42.195 km / 26 miles 385 yards, encyclopaedia britannica, "marathon" (race) entry: official distance is 26 miles 385 yards = 42.195 km = 42,195 metres, standardized by the iaaf in 1921 based on the 1908 london olympics course., encyclopaedia britannica, "marathon" (race) — official/standardized marathon distance of 42.195 kilometres (42195 metres), as fixed by world athletics/iaaf in 1921, encyclopaedia britannica, "marathon" (sports) entry: official race distance of 42.195 km (26 miles 385 yards), standardized in 1921 based on the 1908 london olympics course., encyclopaedia britannica, "marathon" (topic: race distance, 42.195 km / 26 miles 385 yards standardized in 1921), encyclopaedia britannica, "marathon" entry (https://www.britannica.com/sports/marathon-running) — states the official distance is 42.195 km (26 miles 385 yards), standardized by the iaaf in 1921., encyclopaedia britannica, "marathon" entry (race distance section); world athletics competition rules (marathon distance standardization, 1921), encyclopaedia britannica, 'marathon' (race distance 26 miles 385 yards / 42.195 km, standardized 1921 by iaaf); corroborated by world athletics book of rules, rule 240 (marathon distance 42.195 km)., encyclopaedia britannica, entry "marathon" (https://www.britannica.com/sports/marathon-running) — official distance 42.195 km / 42195 metres, standardized by the iaaf in 1921, fédération française d'athlétisme, competition listing for schneider electric marathon de paris (lists tcf / tcm - 42195 m): https://www.athle.fr/competitions/723846464849581846706834992852556828, international olympic committee olympic studies centre, february 2017 newsletter 'hidden treasures' (https://oscnewsletter.olympics.com/article/34/hidden-treasures_lang=es.html), which states the marathon distance is 42.195 km., ioc olympic studies centre, 'hidden treasures' (february 2017): https://oscnewsletter.olympics.com/article/34/hidden_treasures_lang%3den.html, ioc olympic studies centre, boletín informativo del ceo, https://oscnewsletter.olympics.com/article/34/hidden-treasures_lang%3des.html, ioc olympic studies centre, hidden treasures: https://oscnewsletter.olympics.com/article/34/hidden-treasures_lang%3den.html, ioc olympic studies centre, on the pulse: hidden treasures (february 2017), https://oscnewsletter.olympics.com/article/34/hidden-treasures_lang=es.html, ioc olympic world library, programme éducatif international londres 2012 (https://library.olympics.com/digitalcollection/digitalcollectionattachmentdownloadhandler.ashx?documentid=160832&parentdocumentid=54644&skipcopyright=true&skipwatermark=true), media.aws.iaaf.org, olympedia, marathon definition: https://www.olympedia.org/definitions/132; olympia marathon official faq: https://www.olympiamarathon.gr/en/faq-olympia-marathon, olympia marathon official faq, https://www.olympiamarathon.gr/en/faq-olympia-marathon, olympia marathon official faq, https://www.olympiamarathon.gr/en/faq-olympia-marathon (states official distance 42.195 km; converted to 42195 metres), olympia marathon official faq, ‘what is the distance of the marathon?’ https://www.olympiamarathon.gr/en/faq-olympia-marathon (42.195 km)., olympia marathon official faq: https://www.olympiamarathon.gr/en/faq-olympia-marathon, olympia marathon official faq: https://www.olympiamarathon.gr/en/faq-olympia-marathon (states the official marathon distance is 42.195 km), olympia marathon official website, faq, "what is the distance of the marathon?": https://www.olympiamarathon.gr/en/faq-olympia-marathon — states the official distance is 42.195 km., olympia marathon official website, faq, https://www.olympiamarathon.gr/en/faq-olympia-marathon — states: the official distance is 42.195 km., olympia marathon, faq: https://www.olympiamarathon.gr/en/faq-olympia-marathon, oscnewsletter.olympics.com, wikipedia, marathon (https://en.wikipedia.org/wiki/marathon): 42.195 kilometres = 42195 m, the world athletics official distance, wikipedia, marathon article (en.wikipedia.org/wiki/marathon); world athletics standard distance 42.195 km, world athletics (iaaf) competition rules, rule 25(a) - marathon distance of 42.195 km / 42195 metres, world athletics (worldathletics.org) and encyclopaedia britannica, both stating the official marathon distance is 42.195 kilometres (26 miles 385 yards) = 42195 metres, standardized by the iaaf in 1921., world athletics (worldathletics.org) book of rules, technical rules governing road races; corroborated by encyclopaedia britannica, 'marathon' entry, which states the official distance is 42.195 km (26 miles 385 yards), world athletics and aims, the measurement of road race courses (2023), https://media.aws.iaaf.org/competitioninfo/2023%20course%20measurement%20book%20-%20eng.pdf, world athletics and aims, the measurement of road race courses (2023), section i, ‘extract from world athletics rules,’ states the standard marathon distance is 42.195 km: https://media.aws.iaaf.org/competitioninfo/2023%20course%20measurement%20book%20-%20eng.pdf, world athletics and aims, the measurement of road race courses, 2023, technical rule 55.1 (marathon 42.195km): https://media.aws.iaaf.org/competitioninfo/2023%20course%20measurement%20book%20-%20eng.pdf, world athletics and aims, the measurement of road race courses, 2023, technical rule 55.1: https://media.aws.iaaf.org/competitioninfo/2023%20course%20measurement%20book%20-%20eng.pdf, world athletics and aims, the measurement of road race courses, https://media.aws.iaaf.org/competitioninfo/2023%20course%20measurement%20book%20-%20eng.pdf, world athletics and aims, the measurement of road race courses, p. 8, world athletics technical rule 55.1: https://media.aws.iaaf.org/competitioninfo/2023%20course%20measurement%20book%20-%20eng.pdf, world athletics and aims, the measurement of road race courses, technical rule 55.1: https://media.aws.iaaf.org/competitioninfo/2023%20course%20measurement%20book%20-%20eng.pdf, world athletics and aims, the measurement of road race courses, world athletics rules extract, section 55.1 (marathon 42.195km): https://media.aws.iaaf.org/competitioninfo/2023%20course%20measurement%20book%20-%20eng.pdf, world athletics competition rules (book c1), rule 1: standard marathon distance 42.195 km, as corroborated by encyclopaedia britannica's article on the marathon race (britannica.com/sports/marathon-running-event), world athletics in cooperation with aims, the measurement of road race courses, revised edition 2023, page 8, technical rule 55.1: marathon (42.195km). https://media.aws.iaaf.org/competitioninfo/2023%20course%20measurement%20book%20-%20eng.pdf, world athletics technical rules, part vii, road races, rule 55.1: https://worldathletics.org/download/download?filename=92a127cb-d569-4db3-88e8-370e634ab2cd.pdf&urlslug=c2.1+-+technical+rules, world athletics, book c – c2.1 technical rules, rule 55.1: https://worldathletics.org/download/download?filename=92a127cb-d569-4db3-88e8-370e634ab2cd&urlslug=c2.1+-+technical+rules, world athletics, competition rules, part vii – road races, rule 55.1: https://worldathletics.org/download/download?filename=63ee3605-11e1-483c-bff6-f0d44d292d2d.pdf&urlslug=c1.1+%26+c2.1+-+competition+rules+%26+technical+rules, world athletics, https://worldathletics.org/news/news/sonia-osullivan-wins-debut-marathon, world athletics, https://worldathletics.org/news/report/strong-winds-and-ideal-conditions-propel-muta-1, world athletics, marathon discipline page: https://worldathletics.org/disciplines/race-walks/marathon, world athletics, marathon: https://worldathletics.org/disciplines/race-walks/marathon, world athletics, marathon: https://worldathletics.org/disciplines/race-walks/marathon (states the distance as 42.195 km)., world athletics, technical rule 55.1 (road races), https://worldathletics.org/download/download?filename=92a127cb-d569-4db3-88e8-370e634ab2cd.pdf&urlslug=c2.1+-+technical+rules, world athletics, technical rules, part vii - road races, rule 55.1 (marathon: 42.195km), https://worldathletics.org/download/download?filename=92a127cb-d569-4db3-88e8-370e634ab2cd.pdf&urlslug=c2.1+-+technical+rules, world athletics, technical rules, part vii – road races, rule 55.1 (42.195 km): https://worldathletics.org/download/download?filename=92a127cb-d569-4db3-88e8-370e634ab2cd.pdf&urlslug=c2.1+-+technical+rules, world athletics, technical rules, rule 55.1: https://worldathletics.org/download/download?filename=92a127cb-d569-4db3-88e8-370e634ab2cd.pdf&urlslug=c2.1+-+technical+rules, world athletics, the measurement of road race courses (extract from world athletics rules), technical rule 55.1: https://media.aws.iaaf.org/competitioninfo/2023%20course%20measurement%20book%20-%20eng.pdf, world athletics, the measurement of road race courses (world athletics rules, rule 55.1), https://media.aws.iaaf.org/competitioninfo/2023%20course%20measurement%20book%20-%20eng.pdf, world athletics, ‘marathon’ discipline page (worldathletics.org/disciplines/race-walks/marathon), which states 42.195 km; converted to 42,195 metres., world athletics, ‘ultrarunning - introduction’: https://worldathletics.org/news/news/ultrarunning-introduction, worldathletics.org, www.britannica.com, www.encyclopedia.com, www.history.com, www.olympedia.org

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  1. pinnedblocks 26,058,090 to 26,058,387 to · on Ethereum mainnet
  2. answered154 of 154 agreed140 needed
    #63542,195from www.olympiamarathon.gr
    #242,195Encyclopaedia Britannica, "marathon" (race distance 42.195 km / 26 mi 385 yd, standardized 1921)
    #52842,195from en.wikipedia.org
    #160642,195from www.olympedia.org
    #59642,195from worldathletics.org
    149 more
    #84942,195World Athletics (worldathletics.org) Book of Rules, Technical Rules governing road races; corroborated by Encyclopaedia Britannica, 'marathon' entry, which states the official distance is 42.195 km (26 miles 385 yards)
    #29442,195Encyclopaedia Britannica, "marathon" (race) — official/standardized marathon distance of 42.195 kilometres (42195 metres), as fixed by World Athletics/IAAF in 1921
    #190642,195from worldathletics.org
    #108142,195from worldathletics.org
    #164942,195from apnews.com
    #194342,195from en.wikipedia.org
    #140142,195Encyclopaedia Britannica, "marathon" (topic: race distance, 42.195 km / 26 miles 385 yards standardized in 1921)
    #107942,195from en.wikipedia.org
    #143442,195from media.aws.iaaf.org
    #35542,195from en.wikipedia.org
    #173142,195from en.wikipedia.org
    #158442,195from www.olympedia.org
    #32742,195from www.olympedia.org
    #12742,195Encyclopaedia Britannica, "marathon" (athletics) entry; corroborated by World Athletics Competition Rules Book C2.1
    #131442,195Encyclopaedia Britannica, "marathon" (race distance entry): official marathon length is 42.195 km = 42195 metres, standardized by World Athletics/IAAF following the 1908 London Olympics.
    #189842,195from worldathletics.org
    #177042,195from worldathletics.org
    #73742,195from media.aws.iaaf.org
    #27742,195Encyclopaedia Britannica, 'marathon' (race distance 26 miles 385 yards / 42.195 km, standardized 1921 by IAAF); corroborated by World Athletics Book of Rules, Rule 240 (marathon distance 42.195 km).
    #61342,195from worldathletics.org
    #186042,195Britannica entry "marathon" (britannica.com/sports/marathon-running) and World Athletics Competition Rules (Book C1.1), both giving the official marathon distance as 42.195 kilometres (26 miles 385 yards), the standard fixed by the IAAF in 1921.
    #112942,195from worldathletics.org
    #87742,195Encyclopaedia Britannica, "marathon" (sports) entry: official race distance of 42.195 km (26 miles 385 yards), standardized in 1921 based on the 1908 London Olympics course.
    #198042,195from worldathletics.org
    #94642,195from oscnewsletter.olympics.com
    #49542,195from worldathletics.org
    #60742,195from oscnewsletter.olympics.com
    #184442,195from worldathletics.org
    #48742,195from worldathletics.org
    #80942,195from en.wikipedia.org
    #52742,195from en.wikipedia.org
    #163142,195from worldathletics.org
    #100642,195from media.aws.iaaf.org
    #101042,195from media.aws.iaaf.org
    #72242,195from oscnewsletter.olympics.com
    #76042,195from media.aws.iaaf.org
    #166242,195from worldathletics.org
    #128542,195from www.olympiamarathon.gr
    #193742,195from worldathletics.org
    #162642,195from en.wikipedia.org
    #159942,195from www.athle.fr
    #123342,195from media.aws.iaaf.org
    #166342,195from worldathletics.org
    #27042,195from worldathletics.org
    #5942,195from worldathletics.org
    #188442,195from worldathletics.org
    #80442,195from media.aws.iaaf.org
    #167642,195from media.aws.iaaf.org
    #32842,195Encyclopaedia Britannica entry on "marathon" and World Athletics official competition rules, both giving the standard marathon distance as 42.195 kilometres (42,195 metres), fixed in 1921 by the IAAF (now World Athletics) based on the distance run at the 1908 London Olympic Games.
    #131142,195from worldathletics.org
    #151242,195from www.encyclopedia.com
    #72142,195from media.aws.iaaf.org
    #12542,195from www.olympedia.org
    #17442,195from worldathletics.org
    #82742,195from oscnewsletter.olympics.com
    #47542,195from en.wikipedia.org
    #116842,195from worldathletics.org
    #177142,195from www.olympiamarathon.gr
    #134242,195from worldathletics.org
    #168942,195from www.olympiamarathon.gr
    #48042,195from oscnewsletter.olympics.com
    #18242,195from media.aws.iaaf.org
    #78142,195from www.olympiamarathon.gr
    #121542,195from www.britannica.com
    #143342,195from worldathletics.org
    #21542,195from worldathletics.org
    #127142,195from en.wikipedia.org
    #19742,195from oscnewsletter.olympics.com
    #79842,195from oscnewsletter.olympics.com
    #170542,195from www.encyclopedia.com
    #129942,195from www.britannica.com
    #181942,195from media.aws.iaaf.org
    #154042,195Encyclopaedia Britannica, "marathon" (athletic event) article, which gives the official distance as 26 miles 385 yards / 42.195 km, standardized by the IAAF in 1921.
    #84742,195from worldathletics.org
    #176342,195from en.wikipedia.org
    #72942,195World Athletics (worldathletics.org) and Encyclopaedia Britannica, both stating the official marathon distance is 42.195 kilometres (26 miles 385 yards) = 42195 metres, standardized by the IAAF in 1921.
    #90542,195from media.aws.iaaf.org
    #77742,195Encyclopaedia Britannica, "marathon (sports)" article: official marathon length is 42.195 km = 42,195 metres
    #91242,195Britannica, 'marathon' entry (britannica.com): official distance standardized at 42.195 km (42,195 metres) since 1921
    #57942,195from apnews.com
    #137642,195Wikipedia, Marathon article (en.wikipedia.org/wiki/Marathon); World Athletics standard distance 42.195 km
    #125142,195from apnews.com
    #78342,195from worldathletics.org
    #50342,195from www.olympedia.org
    #158042,195from worldathletics.org
    #78642,195from worldathletics.org
    #66842,195from library.olympics.com
    #103442,195from worldathletics.org
    #59142,195from worldathletics.org
    #94842,195from worldathletics.org
    #102042,195from en.wikipedia.org
    #66042,195from en.wikipedia.org
    #156942,195from oscnewsletter.olympics.com
    #46442,195from www.olympedia.org
    #146442,195from www.britannica.com
    #19142,195from www.olympiamarathon.gr
    #32942,195from en.wikipedia.org
    #142742,195from en.wikipedia.org
    #71542,195from www.britannica.com
    #24842,195from www.olympiamarathon.gr
    #83542,195from oscnewsletter.olympics.com
    #48942,195from www.olympedia.org
    #102542,195World Athletics, ‘Marathon’ discipline page (worldathletics.org/disciplines/race-walks/marathon), which states 42.195 km; converted to 42,195 metres.
    #111942,195from oscnewsletter.olympics.com
    #127542,195from worldathletics.org
    #173542,195from en.wikipedia.org
    #112042,195from worldathletics.org
    #28542,195from worldathletics.org
    #163742,195from worldathletics.org
    #1942,195from worldathletics.org
    #75942,195from en.wikipedia.org
    #21142,195from worldathletics.org
    #5142,195from oscnewsletter.olympics.com
    #28042,195from oscnewsletter.olympics.com
    #44642,195from worldathletics.org
    #149942,195from www.britannica.com
    #6142,195from worldathletics.org
    #66142,195from media.aws.iaaf.org
    #18342,195from media.aws.iaaf.org
    #12442,195from media.aws.iaaf.org
    #154842,195from artsandculture.google.com
    #117442,195from www.olympiamarathon.gr
    #49042,195from media.aws.iaaf.org
    #35142,195from www.britannica.com
    #108642,195from oscnewsletter.olympics.com
    #46342,195from media.aws.iaaf.org
    #144742,195from media.aws.iaaf.org
    #34142,195from www.britannica.com
    #60642,195from www.britannica.com
    #172342,195from worldathletics.org
    #87142,195Encyclopaedia Britannica, "marathon" entry (race distance section); World Athletics competition rules (marathon distance standardization, 1921)
    #73542,195Encyclopaedia Britannica, "marathon" (britannica.com/sports/marathon-running): official distance is 26 miles 385 yards = 42.195 km = 42195 metres, per World Athletics rules.
    #36142,195from www.olympiamarathon.gr
    #86342,195World Athletics (IAAF) Competition Rules, Rule 25(a) - marathon distance of 42.195 km / 42195 metres
    #54042,195Encyclopaedia Britannica, "marathon (sport)" entry
    #187142,195Encyclopaedia Britannica, "marathon" (race) entry: official distance is 26 miles 385 yards = 42.195 km = 42,195 metres, standardized by the IAAF in 1921 based on the 1908 London Olympics course.
    #30942,195from media.aws.iaaf.org
    #88042,195from en.wikipedia.org
    #114042,195from www.olympiamarathon.gr
    #123542,195Encyclopaedia Britannica entry on the marathon and World Athletics (IAAF) official rules, which state the standardized race distance of 42.195 kilometres (42,195 metres), fixed in 1921 based on the 1908 London Olympics course
    #154542,195from en.wikipedia.org
    #143542,195from media.aws.iaaf.org
    #20942,195from www.history.com
    #71242,195from worldathletics.org
    #6642,195from en.wikipedia.org
    #44342,195Encyclopaedia Britannica, "marathon" (race) entry, stating the official distance of 42.195 km / 26 miles 385 yards
    #100142,195World Athletics Competition Rules (Book C1), Rule 1: standard marathon distance 42.195 km, as corroborated by Encyclopaedia Britannica's article on the marathon race (britannica.com/sports/marathon-running-event)
    #188642,195from media.aws.iaaf.org
    #31842,195from worldathletics.org
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