Rhiannon Ace is Welsh Feather #150 and earned her first cap playing in the 1999 FENA Open against Malta on 26/02/1999 and then Northern Ireland before being chosen for the 10th World Cup hosted by New Zealand in 1999 where she played against Vanuatu and Northern Ireland. After this, Rhiannon played Internationals against Barbados and Scotland before playing in the 2003 and 2004 FENA Open, then an International against South Africa, then the 2005 FENA Open, then an International against Jamaica and then the 2006 FENA Open. Rhiannon was then selected for the 18th Commonwealth Games hosted by Australia in 2006 where she played games against Australia, Samoa, Singapore, Barbados and South Africa. Her final games were played in a World Cup Qualifer against Scotland and then Northern Ireland on 17/06/2006.
Rhiannon Ace played Goal Attack, Wing Attack and Centre and was from Dyfed.
| Countries Played Against | No. Times Played |
| Malta | 1 |
| Northern Ireland | 6 |
| Vanuatu | 1 |
| Barbados | 2 |
| Scotland | 5 |
| South Africa | 2 |
| England | 2 |
| Jamaica | 1 |
| Australia | 1 |
| Samoa | 1 |
| Singapore | 1 |
