| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2014 | J1 League | 4 | 270 | 0 | 0 | 0 | — |
| 2015 | J1 League | 3 | 270 | 1 | 0 | 0.33 | — |
| 2016 | J1 League | 13 | 774 | 0 | 0 | 0 | — |
| 2017 | J2-League | 43 | 1936 | 0 | 1 | 0.05 | — |
| 2018 | J1 League | 26 | 2263 | 0 | 1 | 0.04 | 7.05 |
| 2019 | J1 League | 31 | 2565 | 4 | 1 | 0.18 | 6.99 |
| 2020 | J1 League | 5 | 163 | 0 | 0 | 0 | 6.68 |
| 2021 | J1 League | 26 | 1743 | 0 | 0 | 0 | 6.81 |
| 2022 | J1 League | 21 | 778 | 0 | 1 | 0.12 | 6.78 |
| 2023 | J2-League | 43 | 3791 | 0 | 3 | 0.07 | — |
| 2024 | J1 League | 29 | 2423 | 0 | 1 | 0.04 | 6.93 |
| 2025 | J1 League | 32 | 2678 | 0 | 0 | 0 | 6.78 |
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.
Figures computed from the GioScore season-stats database · as of 2026-07-31
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Cerezo Osaka | 5 | 1 | 1 | 3 | 0 | 0 | 0 | 0 |
 Shimizu S-Pulse | 5 | 0 | 1 | 4 | 0 | 0 | 1 | 0 |
 Nagoya Grampus | 5 | 2 | 1 | 2 | 0 | 0 | 0 | 0 |
 Gamba Osaka | 5 | 1 | 2 | 2 | 0 | 0 | 0 | 0 |
 Kashiwa Reysol | 4 | 2 | 1 | 1 | 0 | 0 | 0 | 0 |
 Albirex Niigata | 4 | 2 | 2 | 0 | 0 | 0 | 0 | 0 |
 Kashima Antlers | 4 | 1 | 1 | 2 | 0 | 0 | 1 | 0 |
 Vissel Kobe | 4 | 1 | 1 | 2 | 0 | 0 | 0 | 0 |
 Fagiano Okayama | 4 | 3 | 0 | 1 | 0 | 0 | 0 | 0 |
 Machida Zelvia | 4 | 1 | 0 | 3 | 0 | 0 | 0 | 0 |
 Urawa Reds | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
 Shonan Bellmare | 3 | 1 | 0 | 2 | 0 | 0 | 0 | 0 |
 Yokohama F. Marinos | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
 FC Tokyo | 3 | 0 | 2 | 1 | 0 | 0 | 0 | 0 |
 Kyoto Sanga | 3 | 0 | 2 | 1 | 0 | 0 | 1 | 0 |
 Kawasaki Frontale | 3 | 1 | 1 | 1 | 0 | 0 | 1 | 0 |
 JEF United | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
 V-Varen Nagasaki | 3 | 0 | 0 | 3 | 0 | 1 | 0 | 0 |
 ThespaKusatsu Gunma | 3 | 1 | 2 | 0 | 0 | 0 | 1 | 0 |
 Montedio Yamagata | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 |
Neither a goal nor an assist came from Kazuya Miyahara's 32 J1 League appearances in 2025 (2,678 minutes). His average match rating for that season computes to 6.78.
12 league seasons sit on his record, from 2014 to 2025 across 3 clubs. Season ratings peak at 7.05 in 2018, J1 League and bottom out at 6.68 in 2020.
