JOHN CALLAHAN

2 races in the archive

Personal bests

10K

55:43

2012 · 8:58 /mi

Progression

10K2 finishes · best 55:43 in 2012 — their most recent
55:5056:40201120122011 10K — 57:012012 10K — 55:4355:43

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

Race history