| Nestor Mantolino defeated Bob Mangels |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 9-Ball |
| Bob Mangels defeated Ron Schisler |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 9-Ball |
| Tony Lovejoy defeated Bob Mangels |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 9-Ball |
| Georgios Zigopoulos defeated Bob Mangels |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 8-Ball |
| Joel Zeleny defeated Bob Mangels |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 8-Ball |
| Bob Mangels defeated Darrell Jeff |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 8-Ball |
| Bob Mangels defeated Patrick Pennington |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 8-Ball |
| Michael Evans defeated Bob Mangels |
2019 ACS/OMEGA BILLIARDS NATIONAL CHAMPIONSHIPS 9-Ball |