| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2021 | J3-League | 19 | 990 | 0 | 0 | 0 | — |
| 2022 | J3-League | 8 | 158 | 0 | 0 | 0 | — |
| 2023 | J3-League | 12 | 1061 | 1 | 2 | 0.25 | — |
| 2024 | J3-League | 6 | 341 | 0 | 0 | 0 | — |
| 2025 | J3-League | 1 | — | 0 | 1 | — | — |
Domestic league competitions only; G+A/90 computed from minutes actually played.
Cohort: 49 J3-League defenders, 2023, min. 450 minutes. Computed by ranking the full league corpus, not taken from any feed.
Figures computed from the GioScore season-stats database · as of 2026-07-06
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Parceiro Nagano | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
 Vanraure Hachinohe | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
 Gifu | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Kamatamare Sanuki | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Matsumoto Yamaga | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 0 |
 Giravanz Kitakyushu | 2 | 1 | 0 | 1 | 0 | 0 | 2 | 1 |
 Kataller Toyama | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Fukushima United | 2 | 0 | 1 | 1 | 0 | 1 | 1 | 0 |
 Kagoshima United | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Nara Club | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Tegevajaro Miyazaki | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Omiya Ardija | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Consadole Sapporo | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Shimizu S-Pulse | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Vissel Kobe | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Júbilo Iwata | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 ThespaKusatsu Gunma | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Imabari | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Roasso Kumamoto | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Ehime | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
In the 2024 J3-League, Ko Watahiki played 6 games (341 minutes) without a direct goal contribution. Set beside the 49 J3-League defenders who played 450+ minutes in 2023, he lands in the top 5% for goal involvements per 90; on goals he ranks 4th of 49.
| Club | Period | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| Sagamihara | 2022/2023 - now | 34 | 1 | 4 | 1707 | — | — | — |
| Tegevajaro Miyazaki | 2021/2022 - 2022/2023 | 27 | 0 | 0 | 1148 | — | — | — |
| Total | 61 | 1 | 4 | 2855 |
| Season | Club | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| 24/25 | Sagamihara | 15 | 0 | — | 215 | 1 | 0 | — |
| 23/24 | Sagamihara | 6 | 0 | — | 341 | 0 | 0 | — |
| 22/23 | Sagamihara | 13 | 1 | — | 1151 | 1 | 0 | — |
| 21/22 | Tegevajaro Miyazaki | 8 | 0 | — | 158 | 1 | 0 | — |
| 20/21 | Tegevajaro Miyazaki | 19 | 0 | — | 990 | 1 | 0 | — |
