Naoki Koyama

50 finishes completed

Based on 50 distinct completed events in your linked record.

10 marathons completed

Based on 10 distinct completed events in your linked record.

First recorded half marathon

First matching distance in your linked results; earlier unlinked history may exist.

2 countries raced

One completed event in each different country; UK home nations count together.

First marathon major

Different qualifying major marathons. Repeated finishes of one major count once here.

2 sports completed

At least one completed result in each sport; track and field count as Athletics, while road running and parkrun count as Running.

Raced in 11 calendar years

At least one recorded finish in each year; this does not imply an uninterrupted streak.

PB improved

A faster result after an earlier performance in the same sport, distance, surface and timing category.