This competition is open to all students in Wales. Each secondary school or college is allowed one team of 2 speakers.
| Date | Region | Winner |
| 29 September | Carmarthenshire, Ceredigion & Pembrokeshire | Ysgol Dyffryn Taf |
| 1 October | Swansea & Neath Port Talbot | Ysgol Gyfun Ystalyfera |
| 4 October | Rhondda Cynon Taf, Vale of Glamorgan & Bridgend | Y Pant Comprehensive School |
| 7 October | Cardiff, Merthyr Tydfil & Caerphilly | Cwmcarn High School |
| 8 October | Torfaen, Newport, Blaenau Gwent & Monmouthshire | Caerleon Comprehensive School |
| 12 October | Powys | Brecon High School |
| 13 October | Gwynedd, Conwy & Ynys Môn | Ysgol Friars |
| 14 October | Denbighshire, Flintshire & Wrexham | Denbigh High School |
| Quarter Finals | ||
| 4 November | Coleg Powys | Ysgol Friars |
| Caerleon Comprehensive School | ||
| Cwmcarn High School | ||
| Ysgol Dyffryn Taf | ||
| Semi Finals | ||
| 4 November | Coleg Powys | Caerleon Comprehensive School |
| Cwmcarn High School | ||
| Final | ||
| 29 November | Temple of Peace, Cardiff | Cwmcarn High School |
The Final between Cwmcarn School and Caerleon Comprehensive took place on Monday 29 November, 5.30pm at the Temple of Peace and Sara Morgan and Sarah Roberts of Cwmcarn School were declared the winning team. The girls will represent Wales at the English-Speaking Union’s International Schools Mace Final in May 2011!
Five of the competitors from the 2010 Wales School Debating Championship have also been selected to represent Wales at the 2011 World Schools Debating Championships in Dundee, Scotland.
The students selected were:
The 2010 Wales School Debating Championships werre kindly supported by Julian Hodge Bank with additional support from Antur Teifi.