| Mike Leigh defeated Thomas Zack |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 9-Ball |
| Thomas Zack defeated Mike Slater |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 9-Ball |
| Thomas Zack defeated Danny Innocente |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 9-Ball |
| Thomas Zack defeated Michael Evans |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 9-Ball |
| Thomas Zack defeated Lino Garcia |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 9-Ball |
| Rodney Browne defeated Thomas Zack |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 9-Ball |
| Thomas Zack defeated Derick Shelton |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 8-Ball |
| Thomas Zack defeated James Dozier |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 8-Ball |
| Thomas Zack defeated John Eddy |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 8-Ball |
| Thomas Zack defeated Chris Horwich |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 8-Ball |
| Dan Scharenbroch defeated Thomas Zack |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 8-Ball |
| Shannon Hughes defeated Thomas Zack |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 8-Ball |