| Result | Tournament |
|---|---|
| Peter Lau defeated John Cook | 2019 Derby City Classic 9-Ball |
| Chris Szuter defeated John Cook | 2019 Derby City Classic 9-Ball |
| Donny Mills defeated John Cook | 2018 Derby City Classic 9-Ball |
| Alex Montpellier defeated John Cook | 2018 Derby City Classic 9-Ball |
| Alex Borukhovich defeated John Cook | 2017 U.S.Open 9-Ball |
| Bernard Walker defeated John Cook | 2017 U.S.Open 9-Ball |
| Rob Hart defeated John Cook | 2017 Derby City Classic 9-Ball |
| Joseph Tourangeau defeated John Cook | 2016 Derby City Classic 9-Ball |
| Justin Bergman defeated John Cook | 2016 Derby City Classic 9-Ball |
| Daryl Peach defeated John Cook | 2015 U.S.Open 9-Ball |
| John Cook defeated Larry Phelgar | 2015 U.S.Open 9-Ball |
| Francisco Sanchez-Ruiz defeated John Cook | 2015 U.S.Open 9-Ball |
| Danny Mastermaker defeated John Cook | 2014 U.S.Open 9-Ball |
| Moe Salamah defeated John Cook | 2014 U.S.Open 9-Ball |