| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2011/2012 | Primera Division (El Salvador) | 36 | — | 15 | 0 | — | — |
| 2012/2013 | Primera Division (El Salvador) | 19 | 1563 | 7 | 0 | 0.4 | — |
| 2013/2014 | Primera Division (El Salvador) | 4 | — | 1 | 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 2026-07-26
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Santos Laguna | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Houston Dynamo | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Seattle Sounders | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Austin Aztex | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 United States | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Honduras | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Paraguay | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Moldova | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Cuba | 1 | 1 | 0 | 0 | 1 | 2 | 0 | 0 |
Across 19 Primera Division (El Salvador) appearances in 2012/2013 (1,563 minutes), William Romero Castillo scored 7 goals but did not register an assist — 0.4 goal involvements per 90.
3 league seasons sit on his record, from 2011 to 2013 across 2 clubs.
