| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2018 | USL Championship (United States) | 31 | 2505 | 6 | 5 | 0.4 | — |
| 2019 | USL Championship (United States) | 8 | 685 | 1 | 1 | 0.26 | — |
| 2019/2020 | Premiership | 22 | 1222 | 1 | 0 | 0.07 | 6.66 |
| 2020 | Major League Soccer (United States) | 16 | 981 | 4 | 0 | 0.37 | 7.08 |
| 2021 | Major League Soccer (United States) | 27 | 1263 | 3 | 1 | 0.29 | 6.84 |
| 2022 | Major League Soccer (United States) | 35 | 2362 | 1 | 4 | 0.19 | 6.86 |
| 2023 | Major League Soccer (United States) | 34 | 2819 | 5 | 4 | 0.29 | 6.9 |
| 2024 | Major League Soccer (United States) | 32 | 2657 | 3 | 3 | 0.2 | 7.02 |
| 2025 | Major League Soccer (United States) | 36 | 2482 | 2 | 1 | 0.11 | 6.75 |
| 2026 | Major League Soccer (United States) | 15 | 1189 | 0 | 1 | 0.08 | 6.53 |
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 2026-07-21
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Colorado Rapids | 7 | 3 | 0 | 4 | 0 | 1 | 1 | 0 |
 LA Galaxy | 6 | 3 | 0 | 3 | 0 | 0 | 0 | 0 |
 Houston Dynamo | 5 | 2 | 1 | 2 | 0 | 1 | 1 | 0 |
 Real Salt Lake | 5 | 0 | 2 | 3 | 0 | 0 | 1 | 0 |
 Minnesota United | 5 | 2 | 2 | 1 | 0 | 0 | 1 | 0 |
 Vancouver Whitecaps | 4 | 0 | 2 | 2 | 0 | 0 | 0 | 0 |
 Dallas | 4 | 0 | 2 | 2 | 0 | 0 | 0 | 0 |
 Portland Timbers | 4 | 2 | 1 | 1 | 1 | 0 | 1 | 0 |
 Seattle Sounders | 4 | 1 | 0 | 3 | 0 | 0 | 0 | 0 |
 Los Angeles FC | 4 | 1 | 3 | 0 | 0 | 0 | 1 | 0 |
 St. Louis City | 4 | 1 | 1 | 2 | 0 | 0 | 1 | 0 |
 Rangers | 3 | 0 | 2 | 1 | 1 | 0 | 0 | 0 |
 Toronto | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
 Kilmarnock | 3 | 1 | 2 | 0 | 0 | 0 | 0 | 0 |
 Sporting KC | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
 St. Mirren | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
 St. Johnstone | 3 | 0 | 2 | 1 | 0 | 0 | 0 | 0 |
 Nashville SC | 3 | 1 | 0 | 2 | 1 | 0 | 0 | 0 |
 Celtic | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Hibernian | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
In 2026, Jon Gallagher's Major League Soccer (United States) contribution was creative only — 1 assist in 15 appearances, no goals (1,189 minutes) — 0.08 goal involvements per 90. GioScore's computed rating for the season averages 6.53.
No season rated higher than 2020 (7.08, Major League Soccer (United States)); none lower than 2026 (6.53). His last two rated seasons average 0.25 below his earlier career level.
