| Result | Tournament |
|---|---|
| Naoyuki Oi defeated Brian Wilson | 2024 Derby City Classic One Pocket |
| Naoyuki Oi defeated Nathan Baas | 2024 Derby City Classic One Pocket |
| Naoyuki Oi defeated Mason Stewart | 2024 Derby City Classic One Pocket |
| Naoyuki Oi defeated Ruben Flores | 2024 Derby City Classic One Pocket |
| Naoyuki Oi defeated David Brown | 2024 Derby City Classic One Pocket |
| Naoyuki Oi defeated Billy Thorpe | 2024 Derby City Classic One Pocket |
| John Pinegar defeated Naoyuki Oi | 2024 Derby City Classic One Pocket |
| Naoyuki Oi defeated Steve Morrow | 2024 Derby City Classic One Pocket |
| Lee Van Corteza defeated Naoyuki Oi | 2024 Derby City Classic One Pocket |
| Naoyuki Oi defeated Shane McGuire | 2023 Derby City Classic One Pocket |
| Naoyuki Oi defeated Trevor Wright | 2023 Derby City Classic One Pocket |
| Naoyuki Oi defeated Chad Fairchild | 2023 Derby City Classic One Pocket |
| Naoyuki Oi defeated Paul Toddy | 2023 Derby City Classic One Pocket |
| Gerson Martinez defeated Naoyuki Oi | 2023 Derby City Classic One Pocket |
| Efren Reyes defeated Naoyuki Oi | 2023 Derby City Classic One Pocket |
| Naoyuki Oi defeated Jim Reinhardt | 2023 Derby City Classic Bank Pool |
| Naoyuki Oi defeated Ronald Kelly | 2023 Derby City Classic Bank Pool |
| Spencer Ladin defeated Naoyuki Oi | 2023 Derby City Classic Bank Pool |
| Naoyuki Oi defeated Brian Hebbeler | 2023 Derby City Classic Bank Pool |
| Randy Flakes defeated Naoyuki Oi | 2023 Derby City Classic Bank Pool |
| Naoyuki Oi defeated Tyler Stapleton | 2023 Derby City Classic 9-Ball |
| Naoyuki Oi defeated Rahul Vithani | 2023 Derby City Classic 9-Ball |
| Naoyuki Oi defeated Chris Eason | 2023 Derby City Classic 9-Ball |
| Pijus Labutis defeated Naoyuki Oi | 2023 Derby City Classic 9-Ball |
| Naoyuki Oi defeated Melissa Smith | 2023 Derby City Classic 9-Ball |
| Naoyuki Oi defeated Ben Jones | 2023 Derby City Classic 9-Ball |
| Naoyuki Oi defeated Anthony Raga | 2023 Derby City Classic 9-Ball |
| Naoyuki Oi defeated Konrad Juszczyszyn | 2023 Derby City Classic 9-Ball |
| Robbie Capito defeated Naoyuki Oi | 2023 Derby City Classic 9-Ball |
| Redgie Cutler defeated Naoyuki Oi | 2022 Derby City Classic One Pocket |
| Joshua Filler defeated Naoyuki Oi | 2022 Derby City Classic One Pocket |
| Naoyuki Oi defeated Alex Pagulayan | 2022 Derby City Classic One Pocket |
| Naoyuki Oi defeated Bruce Russell | 2022 Derby City Classic One Pocket |
| Steve Martin defeated Naoyuki Oi | 2022 Derby City Classic Bank Pool |
| Tim DeRuyter defeated Naoyuki Oi | 2022 Derby City Classic Bank Pool |
| Naoyuki Oi defeated John Lynch | 2022 Derby City Classic Bank Pool |
| Naoyuki Oi defeated David Siltz | 2022 Derby City Classic Bank Pool |
| Naoyuki Oi defeated Dustin Miller | 2022 Derby City Classic Bank Pool |
| Naoyuki Oi defeated Caleb Schumacher | 2022 Derby City Classic Bank Pool |
| Shane Wolford defeated Naoyuki Oi | 2022 Derby City Classic 9-Ball |
| Carlo Biado defeated Naoyuki Oi | 2022 Derby City Classic 9-Ball |
| Naoyuki Oi defeated Billy Thorpe | 2022 Derby City Classic 9-Ball |
| Naoyuki Oi defeated Manny Chau | 2022 Derby City Classic 9-Ball |
| Naoyuki Oi defeated Richard Andrews | 2022 Derby City Classic 9-Ball |
| Naoyuki Oi defeated Pedro Botta | 2022 Derby City Classic 9-Ball |
| Naoyuki Oi defeated Mike Banks | 2022 Derby City Classic 9-Ball |
| Naoyuki Oi defeated Tyler Stapleton | 2022 Derby City Classic 9-Ball |
| Eklenti Kaci defeated Naoyuki Oi | 2021 World Pool Masters 9-Ball |
| Francisco Sanchez-Ruiz defeated Naoyuki Oi | 2021 World Championships 9-Ball |
| Naoyuki Oi defeated Joshua Filler | 2021 World Championships 9-Ball |