| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2018/2019 | Tercera - Group 1 | 18 | 1028 | 5 | 0 | 0.44 | — |
| 2018/2019 | Tercera - Group 4 | 17 | 1011 | 5 | 0 | 0.45 | — |
| 2019/2020 | La Liga | 19 | 565 | 1 | 0 | 0.16 | 6.51 |
| 2019/2020 | Segunda B - Group 2 | 6 | 487 | 1 | 0 | 0.18 | — |
| 2020/2021 | La Liga | 21 | 438 | 1 | 0 | 0.21 | 6.58 |
| 2021/2022 | La Liga 2 (Spain) | 32 | 1529 | 3 | 1 | 0.24 | 6.78 |
| 2022/2023 | Super Lig | 32 | 2664 | 9 | 3 | 0.41 | 6.85 |
| 2023/2024 | Championship (England) | 35 | 2195 | 6 | 2 | 0.33 | 6.89 |
| 2024/2025 | Championship (England) | 41 | 3617 | 18 | 4 | 0.55 | 7.25 |
| 2025/2026 | Liga Portugal | 30 | 1604 | 5 | 3 | 0.45 | 6.83 |
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 2026-08-02
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 SD Eibar | 6 | 4 | 0 | 2 | 0 | 0 | 0 | 0 |
 Real Valladolid | 6 | 3 | 1 | 2 | 1 | 0 | 0 | 0 |
 Leeds United | 5 | 1 | 2 | 2 | 0 | 0 | 0 | 0 |
 Sevilla | 5 | 0 | 1 | 4 | 0 | 0 | 1 | 0 |
 Atlético Madrid | 5 | 1 | 1 | 3 | 0 | 0 | 0 | 0 |
 Blackburn Rovers | 4 | 0 | 3 | 1 | 1 | 0 | 0 | 0 |
 Sunderland | 4 | 1 | 1 | 2 | 0 | 0 | 0 | 0 |
 Middlesbrough | 4 | 0 | 2 | 2 | 2 | 0 | 1 | 1 |
 West Bromwich Albion | 4 | 2 | 1 | 1 | 0 | 0 | 2 | 1 |
 Celta de Vigo | 4 | 1 | 0 | 3 | 0 | 0 | 0 | 0 |
 Queens Park Rangers | 4 | 1 | 2 | 1 | 0 | 0 | 2 | 0 |
 Sheffield Wednesday | 4 | 1 | 1 | 2 | 3 | 1 | 0 | 0 |
 Cardiff City | 4 | 3 | 0 | 1 | 2 | 0 | 0 | 0 |
 FC Barcelona | 4 | 0 | 1 | 3 | 0 | 0 | 0 | 0 |
 Preston North End | 4 | 1 | 2 | 1 | 1 | 0 | 2 | 0 |
 Getafe | 4 | 0 | 4 | 0 | 0 | 0 | 0 | 0 |
 Bristol City | 4 | 1 | 1 | 2 | 2 | 0 | 1 | 0 |
 Valencia | 4 | 0 | 3 | 1 | 0 | 0 | 0 | 0 |
 Osasuna | 4 | 0 | 1 | 3 | 0 | 0 | 0 | 0 |
 Real Sociedad | 4 | 1 | 1 | 2 | 1 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Lithuania U19 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Serbia U19 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Romania U19 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
Borja Sainz closed the 2025/2026 Liga Portugal campaign on 5 goals and 3 assists from 30 outings (1,604 minutes) — 0.45 goal involvements per 90. His average match rating for that season computes to 6.83.
His ratings range from 6.51 (2019/2020) up to 7.25 in 2024/2025, Championship (England). His last two rated seasons average 0.32 above his earlier career level — an upward curve.
