| Fergal O'Brien defeated David Portman |
2010 PTC - Event 4 Snooker |
| David Portman defeated Kamran Ashraf |
2010 PTC - Event 4 Snooker |
| David Portman defeated Jamie Barrett |
2010 PTC - Event 4 Snooker |
| Daniel Wells defeated David Portman |
2010 PTC - Event 3 Snooker |
| David Portman defeated Terry Challenger |
2010 PTC - Event 3 Snooker |
| David Grace defeated David Portman |
2010 PTC - Event 2 Snooker |
| Zhang Anda defeated David Portman |
2011 Q School - Event 1 Snooker |
| David Portman defeated Sam Baird |
2011 Q School - Event 1 Snooker |
| Bash Maqsood defeated David Portman |
2011 Q School - Event 2 Snooker |
| Alex Davies defeated David Portman |
2011 Q School - Event 3 Snooker |
| David Portman defeated James Wattana |
2011 Q School - Event 3 Snooker |
| Justin Astley defeated David Portman |
2010 PIOS - Event 8 Snooker |
| David Portman defeated Vinnie Calabrese |
2010 PIOS - Event 8 Snooker |
| Justin Astley defeated David Portman |
2010 PIOS - Event 7 Snooker |
| David Portman defeated Kevin van Hove |
2010 PIOS - Event 7 Snooker |
| Kishan Hirani defeated David Portman |
2010 PIOS - Event 6 Snooker |
| Robert Valiant defeated David Portman |
2009 PIOS - Event 5 Snooker |
| David Portman defeated Adam Duffy |
2009 PIOS - Event 5 Snooker |
| David Portman defeated Richard Clark |
2009 PIOS - Event 5 Snooker |
| David Portman defeated Oliver Brown |
2009 PIOS - Event 5 Snooker |
| David Portman defeated Sydney Wilson |
2009 PIOS - Event 5 Snooker |
| Jak Jones defeated David Portman |
2009 PIOS - Event 4 Snooker |
| David Portman defeated Aditya Mehta |
2009 PIOS - Event 4 Snooker |
| David Portman defeated John Astley |
2009 PIOS - Event 4 Snooker |
| David Portman defeated Stuart Watson |
2009 PIOS - Event 4 Snooker |
| David Portman defeated Marc Harman |
2009 PIOS - Event 4 Snooker |
| Alfie Burden defeated David Portman |
2009 PIOS - Event 3 Snooker |
| Jeff Cundy defeated David Portman |
2009 PIOS - Event 2 Snooker |
| Ian Ali defeated David Portman |
2009 PIOS - Event 1 Snooker |
| David Craggs defeated David Portman |
2009 PIOS - Event 8 Snooker |
| Lee Page defeated David Portman |
2009 PIOS - Event 7 Snooker |
| David Portman defeated Joe Jogia |
2009 PIOS - Event 7 Snooker |
| David Portman defeated Justin Astley |
2009 PIOS - Event 7 Snooker |
| David Portman defeated Kyren Wilson |
2009 PIOS - Event 7 Snooker |
| David Portman defeated Adam Duffy |
2009 PIOS - Event 7 Snooker |
| David Portman defeated Stephen Ellis |
2009 PIOS - Event 7 Snooker |
| Jack Lisowski defeated David Portman |
2009 PIOS - Event 6 Snooker |
| David Portman defeated Craig Waddingham |
2009 PIOS - Event 6 Snooker |
| Alex Borg defeated David Portman |
2008 PIOS - Event 5 Snooker |
| Stephen Wycherley defeated David Portman |
2008 PIOS - Event 4 Snooker |
| Anthony McGill defeated David Portman |
2008 PIOS - Event 3 Snooker |
| David Portman defeated Stewart Watson |
2008 PIOS - Event 3 Snooker |
| Jason Bates defeated David Portman |
2008 PIOS - Event 2 Snooker |
| Bjorn Haneveer defeated David Portman |
2008 PIOS - Event 1 Snooker |
| David Portman defeated Robert Carlisle |
2008 PIOS - Event 1 Snooker |