1st Semi Final, Cardiff, August 25, 2012, 03:30 PM
172/6(20ov)
136/8(20ov)
Yorkshire beat Sussex by 36 runs
Sussex Playing XI
| Murray Goodwin | Batsman |
| Scott Styris | All Rounder |
| Matt Prior † | Wicket Keeper |
| Michael Yardy (c) | All Rounder |
| Amjad Khan | Bowler |
| Luke Wright | All Rounder |
| Chris Nash | Batsman |
| Joe Gatting | Batsman |
| Will Beer | All Rounder |
| Matt Machan | Batsman |
| Chris Liddle | Bowler |
Yorkshire Playing XI
| Ryan Sidebottom | Bowler |
| Phil Jaques | Batsman |
| Tim Bresnan | All Rounder |
| Gary Ballance | Batsman |
| Andrew Gale (c) | Batsman |
| Azeem Rafiq | Bowler |
| David Miller | Batsman |
| Joe Root | Batsman |
| Jonny Bairstow † | Wicket Keeper |
| Moin Ashraf | Bowler |
| Rich Pyrah | All Rounder |