| Result | Tournament |
|---|---|
| Jamie Carter defeated Robert Williams | 2022 JR Wedge Memorial 8-Ball |
| Bill Macpherson defeated Robert Williams | 2022 JR Wedge Memorial 8-Ball |
| Jason Thomas defeated Robert Williams | 2018 East Coast Canadian Open 9-Ball |
| Robert Williams defeated Randy Demont | 2018 East Coast Canadian Open 9-Ball |
| Brent Macintyre defeated Robert Williams | 2018 East Coast Canadian Open 9-Ball |
| Robert Williams defeated Mike Nicksy | 2018 East Coast Canadian Open 8-Ball |
| Robert Williams defeated Mike Gillard | 2018 East Coast Canadian Open 8-Ball |
| Robert Williams defeated Dick Barker | 2018 East Coast Canadian Open 8-Ball |
| Ashley Nowlan defeated Robert Williams | 2018 East Coast Canadian Open 8-Ball |
| John Morra defeated Robert Williams | 2018 East Coast Canadian Open 8-Ball |
| Robert Williams defeated Ross MacDonald | 2017 East Coast Canadian Open 9-Ball |
| Jeremy Basque defeated Robert Williams | 2017 East Coast Canadian Open 9-Ball |
| Bruce Lilly defeated Robert Williams | 2017 East Coast Canadian Open 9-Ball |