JASON COSBY

11 races in the archive

Personal bests

Marathon

4:05:19

2014 · 9:21 /mi

Half Marathon

2:07:56

2021 · 9:46 /mi

10K

55:57

2022 · 9:00 /mi

Progression

Marathon3 finishes · best 4:05:19 in 2014 · latest 4:46:08 in 2024
4:26:402014201920242014 2014 Anthem Richmond Marathon — 4:05:194:05:192019 2019 VCU Health Richmond Marathon — 4:28:262024 2024 Allianz Partners Richmond Marathon — 4:46:08

Lower on the chart is faster — a line falling to the right means improvement.

10K7 finishes · best 55:57 in 2022 · latest 1:04:08 in 2025
58:201:02:3020152017201820222023202420252015 10K — 1:04:592017 10K — 57:152018 10K — 57:442022 10K — 55:5755:572023 10K — 58:502024 10K — 59:47.82025 10K — 1:04:08

Lower on the chart is faster — a line falling to the right means improvement.

Marathon — pace by segment3 of 3 editions shown
10:0011:40Start–10K10K–HalfHalf–20 Mile20 Mile–Finish2024 · Start to 10K · 10:18 /mi2024 · 10K to Half · 10:14 /mi2024 · Half to 20 Mile · 10:37 /mi2024 · 20 Mile to Finish · 12:36 /mi20242019 · Start to 10K · 10:17 /mi2019 · 10K to Half · 9:59 /mi2019 · Half to 20 Mile · 10:28 /mi2019 · 20 Mile to Finish · 10:14 /mi20192014 · Start to 10K · 9:44 /mi2014 · 10K to Half · 9:05 /mi2014 · Half to 20 Mile · 8:58 /mi2014 · 20 Mile to Finish · 9:43 /mi2014

Minutes per mile over each stretch of the course. Lower is faster, so a line rising to the right means slowing down. Colour runs pale for the earliest editions to dark for the most recent; tap a year to show or hide it.

10K — pace by segment6 of 6 editions shown
9:1010:0010:50Start–5K5K–Finish2025 · Start to 5K · 10:58 /mi2025 · 5K to Finish · 9:40 /mi20252024 · Start to 5K · 9:58 /mi2024 · 5K to Finish · 9:17 /mi20242023 · Start to 5K · 9:12 /mi2023 · 5K to Finish · 9:45 /mi20232022 · Start to 5K · 9:10 /mi2022 · 5K to Finish · 8:50 /mi20222018 · Start to 5K · 9:40 /mi2018 · 5K to Finish · 8:55 /mi20182017 · Start to 5K · 9:21 /mi2017 · 5K to Finish · 9:05 /mi2017

Minutes per mile over each stretch of the course. Lower is faster, so a line rising to the right means slowing down. Colour runs pale for the earliest editions to dark for the most recent; tap a year to show or hide it.

Race history