Ruth Chepngetich runs 2:09:56 in Chicago
Chepngetich becomes the first woman to break both 2:11 and 2:10 for the marathon, on the same flat Grant Park loop. The performance sits far outside the previous progression and is discussed as anomalous from the day it is run.
Historical — it happened, and the record is settled.
Subjects
- Chicago Marathon · route · United States
- The marathon distance (42.195 km / 26 miles 385 yards) · concept · not located
Evidence
Partly verified — Core facts are sourced; some optional detail is deliberately absent.
Athletics Integrity Unit decision — Ruth Chepngetich
Ruth Chepngetich, who ran 2:09:56 at Chicago on 13 October 2024, was provisionally suspended in 2025 after testing positive for hydrochlorothiazide and received a three-year ban, reduced from four on admission; her prior results including the world record were reported as remaining valid. V55 verification basis: the AIU decision document itself was not retrieved; this rests on consistent reporting by ESPN, Athletics Weekly and the BBC.
Athletics Integrity Unit, reported by ESPN and Athletics Weekly · 2025-10 · Partly verified
AIU anti-doping decision in the matter of Ruth Chepngetich; reported at https://www.espn.com/olympics/trackandfield/story/_/id/46696848/ruth-chepngetich-marathon-world-record-holder-gets-3-year-doping-ban
Recorded on Chicago Marathon
- The 1908 Olympic marathon fixes 26 miles 385 yards
- The 1908 distance becomes the world standard
- Boston lengthens its course and moves the start to Hopkinton
- The first Chicago Marathon, as the Mayor Daley Marathon
- The World Marathon Majors series is announced
- Kelvin Kiptum runs 2:00:35 in Chicago
- Ruth Chepngetich runs 2:09:56 in Chicago
- Tigst Assefa sets a women-only world record in London
- The first sub-two-hour marathon in a record-eligible race
Related
Related because they share a subject in the Atlas — never because the text looks similar.
- The first sub-two-hour marathon in a record-eligible race · 2026-04-26
- Tigst Assefa sets a women-only world record in London · 2025
- Kelvin Kiptum runs 2:00:35 in Chicago · 2023-10-08
- The World Marathon Majors series is announced · 2006-01-23
- The first Chicago Marathon, as the Mayor Daley Marathon · 1977-09-25
- Boston lengthens its course and moves the start to Hopkinton · 1924
- The 1908 distance becomes the world standard · 1921
- The 1908 Olympic marathon fixes 26 miles 385 yards · 1908-07-24