| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2010/2011 | Segunda B - Group 1 | 24 | 2102 | 2 | 0 | 0.09 | — |
| 2010/2011 | Segunda B - Group 3 | 23 | — | 2 | 0 | — | — |
| 2012/2013 | Segunda B - Group 1 | 38 | 3406 | 2 | 0 | 0.05 | — |
| 2012/2013 | Segunda B - Group 3 | 38 | — | 2 | 0 | — | — |
| 2013/2014 | Segunda B - Group 1 | 34 | 3000 | 0 | 0 | 0 | — |
| 2015/2016 | Segunda B - Group 1 | 32 | 2613 | 0 | 0 | 0 | — |
| 2015/2016 | Segunda B - Group 3 | 3 | — | 0 | 0 | — | — |
| 2018/2019 | Tercera - Group 5 | 33 | 2913 | 2 | 0 | 0.06 | — |
| 2019/2020 | Tercera - Group 5 | 24 | 2129 | 1 | 0 | 0.04 | — |
| 2022/2023 | Tercera - Group 5 | 2 | — | 4 | 0 | — | — |
| 2023/2024 | Tercera - Group 5 | 30 | 2271 | 1 | 0 | 0.04 | — |
| 2024/2025 | Tercera - Group 5 | 5 | 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 Tercera - Group 5 defenders, 2024/2025, 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 2026-07-17
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Prat | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 L'Hospitalet | 2 | 0 | 1 | 1 | 0 | 0 | 2 | 0 |
 Poggibonsi | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Amiternina | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Olympia Agnonese | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Folgore Veregra | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Manresa | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Grama | 2 | 0 | 2 | 0 | 0 | 0 | 1 | 0 |
 Girona II | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
 Reddis | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
 Real Oviedo | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
 Reus Deportiu | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Ontinyent | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Europa | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Badalona | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Olímpic de Xàtiva | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Sant Andreu | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Sambenedettese | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Pobla Mafumet | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 Lleida Esportiu | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
In the 2024/2025 Tercera - Group 5, Óscar Sierra played 5 games (450 minutes) without a direct goal contribution. Measured against 12 Tercera - Group 5 defenders with at least 450 minutes in 2024/2025, he ranks in the top 1% by goal involvements per 90; on goals he ranks 1st of 12.
His league record spans 12 seasons (2010–2024) across 7 clubs.
