Gareth Mason History
| Club | Country | Position | NO | From | To |
|---|---|---|---|---|---|
| Swansea | Wales | Prop | 30/11/-0001 | 01/08/2002 | |
| Ebbw Vale | Wales | Prop | 01/08/1998 | 01/08/1999 | |
| Worcester Warriors | England | Prop | 01/08/2002 | 01/08/2005 | |
| Exeter Chiefs | England | Prop | 01/08/2005 | 01/08/2006 | |
| London Welsh | England | Prop | 01/08/2006 | 01/07/2007 |
NO = Player number .