| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2025/2026 | Championship | 7 | 73 | 0 | 0 | — | 6.33 |
| 2023/2024 | Championship | 11 | 57 | 0 | 0 | — | 6.64 |
| 2024/2025 | Premiership | 32 | 315 | 0 | 0 | 0 | 6.7 |
Domestic league competitions only; G+A/90 computed from minutes actually played.
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 | ||
|---|---|---|---|---|---|---|---|---|
 Kilmarnock | 4 | 3 | 0 | 1 | 0 | 0 | 0 | 0 |
 Hearts | 4 | 0 | 2 | 2 | 0 | 0 | 0 | 0 |
 Celtic | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 |
 Aberdeen | 3 | 1 | 0 | 2 | 0 | 0 | 0 | 0 |
 Dundee United | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
 Dundee | 3 | 3 | 0 | 0 | 0 | 1 | 1 | 0 |
 Motherwell | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
 St. Mirren | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
 St. Johnstone | 3 | 0 | 1 | 2 | 0 | 1 | 0 | 0 |
 Stoke City | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Rangers | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Southampton | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Bristol City | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 |
 West Brom U21 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Huddersfield Town U21 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Blackburn Rovers | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Sunderland | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Charlton Athletic | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Middlesbrough | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Birmingham City | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
2025/2026 brought J. Grieves 7 appearances in the Championship (73 minutes), with no direct goal involvement recorded. His average match rating for that season computes to 6.33.
His league record spans 3 seasons (2023–2025) across 4 clubs. His best-rated season remains 2024/2025 (6.7, Premiership); his lowest was 2025/2026 (6.33).
| Club | Period | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| Ross County | 2024/2025 | 35 | 0 | 2 | 687 | — | — | 6.70 |
| Watford | 2021/2022 - 2025/2026 | 18 | 0 | 0 | 130 | — | — | 6.48 |
| Total | 53 | 0 | 2 | 817 |
| Season | Club | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| 25/26 | Watford | 7 | 0 | — | 73 | 0 | 0 | 6.33 |
| 24/25 | Ross County | 35 | 0 | — | 687 | 0 | 0 | 6.70 |
| 23/24 | Watford | 11 | 0 | — | 57 | 0 | 0 | 6.64 |
