| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2010/2011 | First League | 4 | — | 0 | — | — | — |
| 2010/2011 | Liga Portugal | 4 | 159 | 0 | 0 | 0 | — |
| 2011/2012 | Pro League | 15 | 1198 | 1 | 0 | 0.08 | — |
| 2012/2013 | Liga Portugal | 12 | 468 | 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.
Cohort: 29 Liga Portugal midfielders, 2012/2013, min. 450 minutes. Computed by ranking the full league corpus, not taken from any feed.
Figures computed from the GioScore season-stats database · as of 2026-09-05
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Porto | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 |
 Vitória Setúbal FC | 3 | 0 | 2 | 1 | 0 | 0 | 0 | 0 |
 Beira-Mar | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Vitória Guimarães | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Sporting Braga | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Olhanense | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 0 |
 Estoril | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
 SK Rapid | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Marítimo | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
 Rio Ave | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Associação Naval 1893 | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
 Sporting CP | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Beşiktaş | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Benfica | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Paços de Ferreira | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Portimonense SAD | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Nacional | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Lokomotiv Sofia 1929 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Kaliakra | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Al Shabab | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
William Kwabena Tiero's 12 outings in the 2012/2013 Liga Portugal (468 minutes) produced no goals and no assists. Set beside a 29-strong pool of Liga Portugal midfielders (2012/2013, min. 450 minutes), their goal involvements per 90 placed in the 34th percentile, and 20th of 29 for goals scored.
Those league minutes are spread over 2 domestic leagues: Liga Portugal (16 appearances, 0 goals) and Pro League (15 appearances, 1 goal).
