| Result | Tournament |
|---|---|
| Ian Costello defeated Jake Sanchez | 2023 GRIFFS BASH 9-Ball |
| Ian Costello defeated Tom Blomquist | 2023 GRIFFS BASH 9-Ball |
| Ian Costello defeated Constantin Alexander | 2023 GRIFFS BASH 9-Ball |
| Ian Costello defeated Shawn Pendelton | 2023 GRIFFS BASH 9-Ball |
| Ian Costello defeated Tyler Arsen | 2023 GRIFFS BASH 9-Ball |
| Marc Vidal Claramunt defeated Ian Costello | 2023 Desperado $1 10-Ball |
| Bhates Reyes defeated Ian Costello | 2023 Desperado $1 10-Ball |
| Ian Costello defeated Josh Kondo | 2023 Desperado $1 10-Ball |
| Blake Baker defeated Ian Costello | 2019 Griffs Turkey Shootout 9-Ball |
| Ian Costello defeated Phil Karpinski | 2019 Griffs Turkey Shootout 9-Ball |
| Ian Costello defeated Nathalie Rohmer | 2019 Griffs Turkey Shootout 9-Ball |
| Ian Costello defeated Lance Salazar | 2019 Griffs Turkey Shootout 9-Ball |
| Wilson Dorsey defeated Ian Costello | 2019 Griffs Turkey Shootout 9-Ball |
| Ian Costello defeated Brian Wilson | 2015 Derby City Classic One Pocket |
| Gary Lutman defeated Ian Costello | 2015 Derby City Classic One Pocket |
| Ian Costello defeated Shane McMinn | 2015 Derby City Classic One Pocket |
| Ian Costello defeated Nick Schulman | 2015 Derby City Classic One Pocket |
| Ian Costello defeated Mark Haddad | 2012 Derby City Classic One Pocket |
| Ian Costello defeated Jamie Green | 2012 Derby City Classic One Pocket |
| Richie Richeson defeated Ian Costello | 2012 Derby City Classic One Pocket |
| Brian Groce defeated Ian Costello | 2012 Derby City Classic One Pocket |