Saturday, November 7, 2026 Nairobi bureau
Switch country Pan-Africa

Choose a country to see only its published stories. Location is estimated from your internet connection.

Career timelines

Brigid Kosgei: Chicago record, Olympic silver and Tokyo wins

Six race milestones trace her major marathon wins and Olympic podium finish.

Coverage through 2026-03-01 · Sources checked 2026-11-07

What this record covers

Selected marathon results from London in 2019 through Tokyo in March 2026. This is not a complete race history or a current ranking. Event edition labels are distinguished from the calendar dates of races.

Position at the coverage date

Kenyan marathon runner with a documented Olympic silver medal and major road-race victories. Record claims describe their status at the cited race date. [s1] [s2] [s3] [s4] [s5] [s6]

Record details

Kenyan representation
Tokyo Marathon’s official results identify Kosgei as the Kenyan winner of the women’s marathon. [s6]
Historical world record
Her Chicago performance lowered Paula Radcliffe’s mark. The later Tokyo report describes Kosgei as a former world record holder. [s1] [s4]
Olympic distinction
The Olympic marathon report records silver behind fellow Kenyan Peres Jepchirchir, separate from Kosgei’s city marathon titles. [s5]
Calendar distinction
The first Tokyo victory here occurred in March 2022. A later report refers to that title by its 2021 edition label. [s2] [s4]
Different race conditions
London’s pandemic-era race used a closed loop, while the Olympic marathon took place in hot conditions in Sapporo. [s3] [s5]

The sequence

6 documented milestones. Highlighted entries mark turning points. Dates retain the precision of the source.

  1. career

    Won the London Marathon

    The 2019 Chicago report records her London victory earlier that year in 2:18:20.

    Evidence [s1] Link to this event

  2. career

    Set a marathon world record in Chicago

    The 13 October 2019 report records victory in 2:14:04, lowering the then world record by 81 seconds.

    Evidence [s1] Link to this event

  3. career

    Retained the London title

    The 4 October 2020 report records her victory in 2:18:58 on the closed-loop London course.

    Evidence [s3] Link to this event

  4. career

    Won Olympic marathon silver

    The 7 August 2021 race report records second place in 2:27:36 behind Peres Jepchirchir in Sapporo.

    Evidence [s5] Link to this event

  5. career

    Won the Tokyo Marathon

    The 6 March 2022 race report records victory in 2:16:02 and a Japanese all-comers’ record at the time.

    Evidence [s2] Link to this event

  6. career

    Won in Tokyo again

    The 1 March 2026 report records victory in 2:14:29. The race organiser confirms that time as a new course record.

    Evidence [s4] Evidence [s6] Link to this event

Sources & evidence

  1. [s1] worldathletics.org

    Chicago world record report

    Official source · Accessed 2026-11-07

  2. [s2] worldathletics.org

    Tokyo March 2022 race report

    Official source · Accessed 2026-11-07

  3. [s3] worldathletics.org

    London 2020 report

    Official source · Accessed 2026-11-07

  4. [s4] worldathletics.org

    Tokyo 2026 report

    Official source · Accessed 2026-11-07

  5. [s5] worldathletics.org

    Olympic marathon race report

    Official source · Accessed 2026-11-07

  6. [s6] www.marathon.tokyo

    Tokyo 2026 official results

    Official source · Accessed 2026-11-07

Public update history

— Researched against the cited evidence and independently checked before publication. Coverage limits apply.

— Titles and explanatory text passed the copywriting and source-consistency checks. Sources and data are unchanged.