| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2020/2021 | Challenger Pro League | 25 | 2019 | 11 | 5 | 0.71 | — |
| 2021/2022 | Challenger Pro League | 27 | 2181 | 12 | 1 | 0.54 | — |
| 2022/2023 | Challenger Pro League | 27 | 1766 | 8 | 2 | 0.51 | — |
| 2023/2024 | Challenger Pro League | 31 | 2118 | 11 | 1 | 0.51 | 7.28 |
| 2024/2025 | Challenger Pro League | 28 | 2153 | 16 | 0 | 0.67 | 7.37 |
| 2025/2026 | Challenger Pro League | 30 | 2685 | 21 | 6 | 0.91 | 7.47 |
| 2026/2027 | Pro League | 3 | 240 | 0 | 0 | 0 | 6.67 |
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 2026-08-23
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Koninklijke Lierse Sportkring | 9 | 6 | 2 | 1 | 0 | 1 | 2 | 0 |
 Lommel SK | 7 | 4 | 0 | 3 | 1 | 1 | 0 | 0 |
 RFC Liège | 5 | 4 | 0 | 1 | 3 | 0 | 0 | 0 |
 RSCA Futures U23 | 5 | 5 | 0 | 0 | 7 | 0 | 0 | 0 |
 Zulte-Waregem | 4 | 1 | 2 | 1 | 0 | 0 | 0 | 0 |
 RFC Seraing | 4 | 4 | 0 | 0 | 3 | 0 | 0 | 0 |
 K. Beerschot V.A. | 4 | 3 | 1 | 0 | 1 | 0 | 2 | 0 |
 Patro Eisden Maasmechelen | 4 | 2 | 2 | 0 | 2 | 0 | 2 | 1 |
 Royal Francs Borains | 4 | 2 | 1 | 1 | 3 | 0 | 0 | 0 |
 Jong KRC Genk U23 | 4 | 2 | 1 | 1 | 4 | 0 | 0 | 0 |
 KAS Eupen | 3 | 2 | 0 | 1 | 3 | 0 | 2 | 0 |
 Club NXT U23 | 3 | 1 | 2 | 0 | 3 | 0 | 0 | 0 |
 KSC Lokeren | 3 | 3 | 0 | 0 | 3 | 0 | 1 | 0 |
 Club Brugge | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Westerlo | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 0 |
 KV Kortrijk | 2 | 2 | 0 | 0 | 0 | 0 | 1 | 0 |
 SK Beveren | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
 Dender | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 0 |
 Royal Excel Mouscron | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 0 |
 La Louvière | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
Across 30 Challenger Pro League appearances in 2025/2026, Lennart Mertens contributed 21 goals plus 6 assists (2,685 minutes) — 0.91 goal involvements per 90. GioScore's computed rating for the season averages 7.47.
His recorded league career runs from 2020 to 2026: 7 seasons across 3 clubs. His current 2025/2026 rating of 7.47 tops his recorded career; 2023/2024 (7.28) marks the low.
