| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2019 | J3-League | 14 | 1260 | 1 | 0 | 0.07 | 0 |
| 2021 | J3-League | 10 | — | 0 | 0 | — | — |
| 2022 | J3-League | 9 | 450 | 0 | 0 | 0 | — |
Domestic league competitions only (SportMonks sub_type='domestic'); national-team, continental and cup competitions are excluded. Classification resolved by league id against the canonical leagues index. G+A/90 computed from minutes actually played.
Cohort: 12 J3-League midfielders, 2022, 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 2026-07-28
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Parceiro Nagano | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 0 |
 Blaublitz Akita | 2 | 0 | 1 | 1 | 0 | 0 | 2 | 1 |
 Kyoto Sanga | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 ThespaKusatsu Gunma | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Roasso Kumamoto | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Kataller Toyama | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Gainare Tottori | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Sagamihara | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Tokyo U23 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Gamba Osaka U23 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 YSCC | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Cerezo Osaka U23 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Grulla | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Iwaki | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
2022 brought Koichi Miyao 9 appearances in the J3-League (450 minutes), with no direct goal involvement recorded. Measured against a cohort of 12 J3-League midfielders with a minimum of 450 minutes in 2022, he sits in the 42nd percentile by goal involvements per 90, with a goals rank of 6th of 12.
His recorded league career runs from 2019 to 2022: 3 seasons across 3 clubs.
