| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2011/2012 | Segunda B - Group 1 | 24 | 1637 | 0 | 0 | 0 | — |
| 2012/2013 | Segunda B - Group 1 | 27 | 2302 | 0 | 0 | 0 | — |
| 2017 | NASL | 19 | 1655 | 0 | 1 | 0.05 | — |
| 2019 | USL Championship (United States) | 8 | 587 | 0 | 0 | 0 | — |
| 2020 | USL Championship (United States) | 19 | 1283 | 0 | 0 | 0 | 0 |
| 2022 | USL Championship (United States) | 9 | 751 | 0 | 0 | 0 | 7.4 |
| 2023 | USL Championship (United States) | 6 | 270 | 0 | 0 | 0 | 6.67 |
| 2024 | USL Championship (United States) | 6 | 206 | 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.
Figures computed from the GioScore season-stats database · as of 2026-07-20
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Phoenix Rising | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
 San Antonio | 3 | 1 | 2 | 0 | 0 | 0 | 1 | 0 |
 New Mexico United | 3 | 1 | 1 | 1 | 0 | 0 | 1 | 0 |
 Tampa Bay Rowdies | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Real Valladolid | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Louisville City | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Recreativo Huelva | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
 Albacete | 2 | 0 | 2 | 0 | 0 | 0 | 2 | 0 |
 Ponferradina | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Gimnàstic Tarragona | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Charleston Battery | 2 | 2 | 0 | 0 | 0 | 0 | 1 | 0 |
 Villarreal II | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Hartford Athletic | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Granada | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Orange County | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Huesca | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Reus Deportiu | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Real Betis | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 Prat | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Pittsburgh Riverhounds | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
In the 2024 USL Championship (United States), Justin Merz played 6 games (206 minutes) without a direct goal contribution.
His recorded league career runs from 2011 to 2024: 8 seasons across 6 clubs. 2022 stands as his highest-rated season (7.4, USL Championship (United States)), with 2020 the weakest (0).
