| Club | League | Years |
|---|---|---|
| Las Palmas | La Liga | 2001–2004, 2018–2020 |
| Deportivo | La Liga | 2004–2010 |
| Racing Santander | La Liga | 2006 |
| Huesca | La Liga | 2008–2009 |
| Rayo Vallecano | La Liga | 2009–2010 |
| Real Betis | La Liga | 2010–2018 |
| Málaga | La Liga | 2022–2023 |
Only the clubs in the game are in the data; spells at other clubs, loans and youth years may be missing.
Which club pairs is Rubén Castro an answer for?
In Who Played Both, if two of these clubs meet, Rubén Castro is one of the right answers.
- Deportivo – Racing Santander 36 players
- Rayo Vallecano – Real Betis 32 players
- Deportivo – Real Betis 31 players
- Deportivo – Rayo Vallecano 27 players
- Málaga – Real Betis 27 players
- Málaga – Rayo Vallecano 24 players
- Racing Santander – Rayo Vallecano 23 players
- Deportivo – Las Palmas 20 players
- Las Palmas – Real Betis 19 players
- Racing Santander – Real Betis 19 players
- Málaga – Racing Santander 18 players
- Deportivo – Málaga 17 players
- Huesca – Las Palmas 15 players
- Las Palmas – Racing Santander 14 players
- Deportivo – Huesca 14 players
Source: Wikidata (CC0), Wikipedia club articles and player infoboxes (years at each club). Youth spells and appearances that look unplayed are left out; volunteer-kept records can contain gaps or errors.