| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2016 | 1. Division | 9 | 106 | 0 | 0 | 0 | — |
| 2017 | 1. Division | 7 | 153 | 0 | 0 | 0 | — |
| 2021 | USL Championship (United States) | 8 | 608 | 3 | 1 | 0.59 | 7.2 |
| 2022 | USL Championship (United States) | 28 | 1700 | 8 | 1 | 0.48 | 6.36 |
| 2023 | USL Championship (United States) | 20 | 871 | 1 | 2 | 0.31 | 6.78 |
| 2024 | USL Championship (United States) | 23 | 876 | 3 | 2 | 0.51 | 6.93 |
| 2025 | USL Championship (United States) | 26 | 1084 | 3 | 3 | 0.5 | 6.69 |
| 2026 | USL Championship (United States) | 15 | 568 | 3 | 0 | 0.48 | 6.88 |
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 2026-08-13
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Tulsa Roughnecks | 6 | 3 | 1 | 2 | 1 | 0 | 1 | 0 |
 Monterey Bay | 6 | 4 | 0 | 2 | 0 | 0 | 0 | 0 |
 Phoenix Rising | 5 | 1 | 2 | 2 | 0 | 0 | 0 | 0 |
 Orange County | 5 | 1 | 0 | 4 | 0 | 0 | 1 | 0 |
 New Mexico United | 5 | 0 | 1 | 4 | 0 | 0 | 0 | 0 |
 Las Vegas Lights | 4 | 1 | 3 | 0 | 2 | 0 | 2 | 0 |
 Tampa Bay Rowdies | 3 | 1 | 2 | 0 | 0 | 0 | 0 | 0 |
 Pittsburgh Riverhounds | 3 | 1 | 1 | 1 | 0 | 0 | 1 | 0 |
 Memphis 901 | 3 | 1 | 2 | 0 | 2 | 0 | 1 | 0 |
 Oakland Roots | 3 | 3 | 0 | 0 | 1 | 1 | 0 | 0 |
 El Paso Locomotive | 3 | 0 | 3 | 0 | 1 | 0 | 0 | 0 |
 Rio Grande Valley | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Sacramento Republic | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Louisville City | 2 | 0 | 0 | 2 | 0 | 0 | 1 | 0 |
 Detroit City | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 San Antonio | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Charleston Battery | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Hartford Athletic | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Birmingham Legion | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Lexington | 2 | 0 | 1 | 1 | 0 | 1 | 0 | 0 |
Jonas Fjellberg finished the 2026 USL Championship (United States) with 3 goals from 15 appearances (568 minutes), with no assists recorded — 0.48 goal involvements per 90. That season graded out at an average match rating of 6.88.
His league record spans 8 seasons (2016–2026) across 5 clubs. At his best he averaged 7.2 in 2021, USL Championship (United States); at his worst, 6.36 in 2022.
