| Result | Tournament |
|---|---|
| Anthony Hamilton defeated Mark Williams | 2013 Wuxi Classic Snooker |
| Mark Williams defeated Jack Lisowski | 2013 Wuxi Classic Snooker |
| Mark Williams defeated Liam Highfield | 2013 Wuxi Classic Snooker |
| Mark Williams defeated Ross Muir | 2013 Wuxi Classic Snooker |
| Marco Fu defeated Mark Williams | 2013 World Open Snooker |
| Michael White defeated Mark Williams | 2013 World Championship Snooker |
| Robert Milkins defeated Mark Williams | 2013 Welsh Open Snooker |
| Mark Williams defeated Liu Chuang | 2013 Welsh Open Snooker |
| Michael Holt defeated Mark Williams | 2013 Snooker Shootout Snooker |
| Mark Williams defeated Jimmy Robertson | 2013 Snooker Shootout Snooker |
| Mark Williams defeated Jamie Jones | 2013 Snooker Shootout Snooker |
| Mark Williams defeated Mike Dunn | 2013 Snooker Shootout Snooker |
| Ben Woollaston defeated Mark Williams | 2013 PTC Grand Final Snooker |
| Mark Selby defeated Mark Williams | 2013 Masters Snooker |
| Mark Williams defeated Matthew Stevens | 2013 Masters Snooker |
| Michael Holt defeated Mark Williams | 2013 German Masters Snooker |
| Mark Williams defeated Martin O'Donnell | 2013 German Masters Snooker |
| Ronnie O'Sullivan defeated Mark Williams | 2013 European Tour - Event 1 Snooker |
| Mark Williams defeated Sam Baird | 2013 European Tour - Event 1 Snooker |
| Mark Williams defeated Ken Doherty | 2013 European Tour - Event 1 Snooker |
| Mark Williams defeated Dominic Dale | 2013 European Tour - Event 1 Snooker |
| Mark Williams defeated Vinnie Calabrese | 2013 European Tour - Event 1 Snooker |
| Mark Selby defeated Mark Williams | 2013 China Open Snooker |
| Mark Williams defeated Allister Carter | 2013 China Open Snooker |
| Mark Williams defeated Lu Haotian | 2013 China Open Snooker |
| Martin Gould defeated Mark Williams | 2013 Championship League Snooker |
| Ding Junhui defeated Mark Williams | 2013 Championship League Snooker |
| Neil Robertson defeated Mark Williams | 2013 Championship League Snooker |
| Mark Selby defeated Mark Williams | 2013 Championship League Snooker |
| Mark Williams defeated Judd Trump | 2013 Championship League Snooker |
| Mark Williams defeated Stephen Maguire | 2013 Championship League Snooker |
| Ju Reti defeated Mark Williams | 2013 Asian Tour - Event 1 Snooker |
| Marcus Campbell defeated Mark Williams | 2012 Wuxi Classic Snooker |
| Mark Williams defeated Mark Allen | 2012 Wuxi Classic Snooker |
| Mark Williams defeated Tom Ford | 2012 Wuxi Classic Snooker |
| Mark King defeated Mark Williams | 2012 World Open Snooker |
| Mark Williams defeated Liu Chuang | 2012 World Championships Snooker |
| Ronnie OSullivan defeated Mark Williams | 2012 World Championships Snooker |
| Ronnie O'Sullivan defeated Mark Williams | 2012 World Championship Snooker |
| Mark Williams defeated Liu Chuang | 2012 World Championship Snooker |
| Ronnie O'Sullivan defeated Mark Williams | 2012 Welsh Open Snooker |
| Mark Williams defeated Andy Hicks | 2012 Welsh Open Snooker |
| Mark Williams defeated Andy Hicks | 2012 Welsh Open Snooker |
| Ronnie OSullivan defeated Mark Williams | 2012 Welsh Open Snooker |
| Mark King defeated Mark Williams | 2012 UK Championship Snooker |
| Barry Pinches defeated Mark Williams | 2012 Snooker Shootout Snooker |
| Mark Williams defeated Steve Davis | 2012 Snooker Shootout Snooker |
| Judd Trump defeated Mark Williams | 2012 Shanghai Masters Snooker |
| Mark Williams defeated Joe Perry | 2012 Shanghai Masters Snooker |
| Mark Williams defeated Ricky Walden | 2012 Shanghai Masters Snooker |