| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2020/2021 | Premier League U18 | 4 | 330 | 0 | 0 | 0 | — |
| 2021/2022 | Premier League U18 | 4 | 215 | 0 | 0 | 0 | — |
| 2022 | Inkasso-Deildin | 8 | 583 | 0 | 0 | 0 | — |
| 2023 | Inkasso-Deildin | 19 | 1621 | 2 | 2 | 0.22 | — |
| 2024 | Pepsideild | 22 | 1854 | 3 | 0 | 0.15 | 7.07 |
| 2025 | Inkasso-Deildin | 21 | 1864 | 3 | 0 | 0.14 | 6.28 |
| 2026 | Inkasso-Deildin | 13 | 1126 | 2 | 0 | 0.16 | 6.74 |
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 2026-08-15
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Thróttur Reykjavík | 5 | 3 | 1 | 1 | 0 | 0 | 1 | 0 |
 Fylkir | 4 | 1 | 0 | 3 | 0 | 0 | 2 | 0 |
 Grindavík | 4 | 1 | 1 | 2 | 1 | 0 | 1 | 0 |
 ÍA | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 |
 Fram | 3 | 3 | 0 | 0 | 3 | 0 | 0 | 0 |
 Fjölnir | 3 | 3 | 0 | 0 | 1 | 0 | 0 | 0 |
 KR Reykjavík | 3 | 2 | 0 | 1 | 0 | 0 | 1 | 1 |
 Thór | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
 Njardvík | 3 | 0 | 0 | 3 | 0 | 0 | 1 | 0 |
 Víkingur Reykjavík | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Breidablik | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Vestri | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Stjarnan | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
 Leiknir Reykjavík | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Keflavík | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Selfoss | 2 | 1 | 0 | 1 | 1 | 0 | 1 | 0 |
 Norwich U18 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 KA Akureyri | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Völsungur | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 FH | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Norway U19 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Greece U19 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Spain U19 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
All of Thorsteinn Antonsson's 2026 Inkasso-Deildin output came as goals: 2 goals in 13 games (1,126 minutes) — 0.16 goal involvements per 90. His average match rating for that season computes to 6.74.
7 league seasons sit on his record, from 2020 to 2026 across 3 clubs. Season ratings peak at 7.07 in 2024, Pepsideild and bottom out at 6.28 in 2025.
