| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2018 | J2-League | 2 | 26 | 0 | 0 | — | — |
| 2019 | J2-League | 29 | 1263 | 6 | 0 | 0.43 | — |
| 2020 | J1 League | 32 | 1939 | 3 | 3 | 0.28 | 6.91 |
| 2020/2021 | Challenger Pro League | 9 | 231 | 0 | 1 | 0.39 | — |
| 2021/2022 | Challenger Pro League | 20 | 1424 | 5 | 2 | 0.44 | — |
| 2022/2023 | Eredivisie | 30 | 2012 | 7 | 5 | 0.54 | 7.04 |
| 2023/2024 | Eredivisie | 22 | 1759 | 3 | 5 | 0.41 | 7.21 |
| 2024/2025 | Championship (England) | 39 | 2303 | 3 | 3 | 0.23 | 6.94 |
| 2025/2026 | Championship (England) | 34 | 1974 | 3 | 2 | 0.23 | 6.59 |
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 2026-07-25
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Vitesse | 5 | 5 | 0 | 0 | 2 | 1 | 0 | 0 |
 FC Twente | 5 | 0 | 3 | 2 | 0 | 0 | 0 | 0 |
 FC Utrecht | 5 | 2 | 0 | 3 | 0 | 0 | 0 | 0 |
 Blackburn Rovers | 4 | 2 | 0 | 2 | 1 | 0 | 0 | 0 |
 Portsmouth | 4 | 1 | 1 | 2 | 0 | 0 | 0 | 0 |
 Middlesbrough | 4 | 0 | 0 | 4 | 0 | 0 | 0 | 0 |
 Sheffield United | 4 | 0 | 2 | 2 | 0 | 1 | 0 | 0 |
 Hull City | 4 | 3 | 0 | 1 | 1 | 0 | 0 | 0 |
 Norwich City | 4 | 1 | 1 | 2 | 0 | 0 | 0 | 0 |
 Sheffield Wednesday | 4 | 1 | 2 | 1 | 0 | 1 | 0 | 0 |
 AZ | 4 | 1 | 1 | 2 | 0 | 0 | 0 | 0 |
 Feyenoord | 4 | 0 | 1 | 3 | 0 | 0 | 0 | 0 |
 SC Heerenveen | 4 | 3 | 1 | 0 | 2 | 0 | 0 | 0 |
 West Bromwich Albion | 3 | 1 | 0 | 2 | 0 | 0 | 0 | 0 |
 Derby County | 3 | 1 | 0 | 2 | 1 | 0 | 0 | 0 |
 Watford | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
 Leicester City | 3 | 2 | 0 | 1 | 1 | 0 | 0 | 0 |
 Millwall | 3 | 0 | 1 | 2 | 0 | 1 | 0 | 0 |
 Luton Town | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
 Coventry City | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Brazil | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Paraguay | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Spain U21 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Germany U21 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 0 |
 Italy U21 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Spain U23 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Italy U20 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Tajikistan U23 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Saudi Arabia U23 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Indonesia U19 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Saudi Arabia U19 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Thailand U19 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Mexico U20 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 USA U20 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Ecuador U20 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Paraguay U23 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
The 2025/2026 Championship (England) line for Koki Saito: 34 appearances (1,974 minutes), 3 goals, 2 assists — 0.23 goal involvements per 90. His average match rating for that season computes to 6.59.
His best-rated season remains 2023/2024 (7.21, Eredivisie); his lowest was 2025/2026 (6.59). Compared with his earlier career average, the last two rated seasons are down by 0.29.
