ELSTATSLAB

Matthew Costello played 134 EuroLeague games in the ELSTATSLAB database from 2021-22 to 2025-26, averaging 8.4 points, 4.3 rebounds and 1.3 assists per game. Below: season by season, with the career total.
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| Season | Team | GP | MIN | PTS | REB | AST | PIR | eFG% | TS% | USG% |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021-22 | Bitci Baskonia Vitoria-Gasteiz | 27 | 21.9 | 9.1 | 5.1 | 1.3 | 11.7 | 56.2 | 59.6 | 20.1 |
| 2022-23 | Cazoo Baskonia Vitoria-Gasteiz | 34 | 20.1 | 9.3 | 4.2 | 1.5 | 10.7 | 58.9 | 61.6 | 20.7 |
| 2023-24 | Baskonia Vitoria-Gasteiz | 33 | 22.2 | 9.7 | 4.2 | 1.7 | 10.2 | 56.3 | 57.6 | 20.6 |
| 2025-26 | Valencia Basket | 40 | 16.6 | 6.2 | 3.8 | 0.8 | 7.4 | 60.1 | 59.3 | 16.1 |
| Career | 4 teams | 134 | 19.9 | 8.4 | 4.3 | 1.3 | 9.8 | 57.8 | 59.5 | 19.4 |
Career figures count every EuroLeague game of the ELSTATSLAB database, from 2000-01 onwards. Averages are per game, TS%, eFG% and USG% are weighted over all games.