| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2022 | Serie B | 9 | 224 | 0 | 0 | 0 | 6.64 |
| 2022/2023 | Liga Portugal 2 | 13 | 735 | 2 | 0 | 0.24 | — |
| 2023/2024 | Liga Portugal 2 | 28 | 2289 | 4 | 3 | 0.28 | 7.11 |
| 2024/2025 | Liga Portugal | 33 | 2372 | 3 | 1 | 0.15 | 6.97 |
| 2025/2026 | Chance Liga | 26 | 1774 | 7 | 4 | 0.56 | 6.9 |
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 2026-07-25
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Santa Clara | 4 | 0 | 0 | 4 | 0 | 0 | 0 | 0 |
 Nacional | 4 | 1 | 1 | 2 | 2 | 0 | 0 | 0 |
 Benfica | 3 | 0 | 1 | 2 | 1 | 0 | 0 | 0 |
 Farense | 3 | 1 | 2 | 0 | 0 | 0 | 0 | 0 |
 Estrela Amadora | 3 | 1 | 1 | 1 | 0 | 0 | 2 | 0 |
 Sporting CP | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Slavia Praha | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 0 |
 Slovácko | 2 | 1 | 1 | 0 | 0 | 2 | 0 | 0 |
 Gil Vicente | 2 | 1 | 0 | 1 | 1 | 1 | 0 | 0 |
 Slovan Liberec | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 0 |
 Karviná | 2 | 1 | 0 | 1 | 2 | 0 | 0 | 0 |
 Porto | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Vitória Guimarães | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Sporting Braga | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Boavista | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Moreirense | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Estoril | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Teplice | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 0 |
 Zlín | 2 | 2 | 0 | 0 | 1 | 0 | 0 | 0 |
 Benfica II | 2 | 2 | 0 | 0 | 0 | 0 | 1 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Brazil | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Morocco | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 United States | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Canada | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Mexico | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 New Zealand | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Netherlands | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Venezuela | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 Paraguay | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Chile | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Peru | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Bolivia | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Hungary U17 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Brazil U23 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Colombia U23 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 Italy U17 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Venezuela U23 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
In the 2025/2026 Chance Liga, John Mercado made 26 appearances (1,774 minutes), with 7 goals and 4 assists — 0.56 goal involvements per 90. That season graded out at an average match rating of 6.9.
No season rated higher than 2023/2024 (7.11, Liga Portugal 2); none lower than 2022 (6.64).
