| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2021 | Besta deild | 6 | 156 | 0 | 0 | 0 | — |
| 2022 | Besta deild | 13 | 703 | 1 | 0 | 0.13 | — |
| 2023 | Besta deild | 10 | 478 | 0 | 0 | 0 | 6.82 |
| 2024 | Besta deild | 6 | 395 | 0 | 0 | 0 | — |
| 2025 | Besta deild | 12 | 254 | 0 | 0 | 0 | 6.67 |
| 2026 | Inkasso-Deildin | 4 | 360 | 0 | 0 | 0 | 6.27 |
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: 49 Besta deild defenders, 2023, 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 2026-09-03
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Valur | 5 | 1 | 4 | 0 | 0 | 0 | 0 | 0 |
 Fram | 5 | 1 | 2 | 2 | 0 | 0 | 0 | 0 |
 HK | 3 | 1 | 0 | 2 | 0 | 0 | 1 | 0 |
 Víkingur Reykjavík | 3 | 0 | 0 | 3 | 0 | 0 | 1 | 0 |
 Breidablik | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
 Vestri | 3 | 2 | 0 | 1 | 0 | 0 | 1 | 0 |
 KR Reykjavík | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
 KA Akureyri | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 ÍBV | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 ÍA | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Thróttur Reykjavík | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Fylkir | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 Grindavík | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Stjarnan | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Leiknir Reykjavík | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Keflavík | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 Njardvík | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 ÍR | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Afturelding | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Kári | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Over 12 Besta deild games in 2025 (254 minutes), J. Arnarsson recorded no direct goal contributions. That season graded out at an average match rating of 6.67. By match rating he occupies the 17th percentile of 49 Besta deild defenders (2023, at least 450 minutes), with a goals rank of 30th of 49.
His league record spans 6 seasons (2021–2026) across 2 clubs. 2023 stands as his highest-rated season (6.82, Besta deild), with 2025 the weakest (6.67).
