| Apr 7, 2024 | Okabe | 1–0 | Hashimoto | Round 6: Okabe, Yuma - Hashimoto, Shunji | Scandinavian Defense: Mieses-Kotroc Variation | |
| Apr 7, 2024 | Rushad | 0–1 | Okabe | Round 5: Rushad, Patil - Okabe, Yuma | King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Exchange Line | |
| Apr 7, 2024 | Okabe | 1–0 | Kihara | Round 4: Okabe, Yuma - Kihara, Kotaro | Scandinavian Defense: Modern Variation | |
| Apr 6, 2024 | Endo | ½–½ | Okabe | Round 3: Endo, Shuma - Okabe, Yuma | Queen's Pawn Game: Barry Attack, Grünfeld Variation | |
| Apr 6, 2024 | Okabe | 1–0 | Kobayashi | Round 2: Okabe, Yuma - Kobayashi, Hiroaki | Scotch Game: Benima Defense | |
| Apr 6, 2024 | Mandhadi | 0–1 | Okabe | Round 1: Mandhadi, Havish - Okabe, Yuma | King's Indian Defense: Petrosian Variation, Stein Defense | |
| Nov 22, 2023 | Skreko | 1–0 | Okabe | FIDEWORLDYOUTHCHESSCHAMPIONSHIP Open 16 | King's Indian Defense: Makogonov Variation | |
| Nov 13, 2023 | Smeets | 1–0 | Okabe | FIDEWORLDYOUTHCHESSCHAMPIONSHIP Open 16 | Ruy Lopez: Morphy Defense, Fianchetto Defense Deferred | |
| Aug 11, 2021 | Okabe | 1–0 | Weerasekara | World Youth Cup 2021 O14-G14 - Open 14 | Caro-Kann Defense: Exchange Variation | |
| Aug 11, 2021 | Okabe | 0–1 | Barja Viveros | World Youth Cup 2021 O14-G14 - Open 14 | Sicilian Defense: Grand Prix Attack | |
| Aug 11, 2021 | Okabe | 1–0 | Marocco | World Youth Cup 2021 O14-G14 - Open 14 | Sicilian Defense: Closed | |
| Aug 11, 2021 | Okabe | 0–1 | Han | World Youth Cup 2021 O14-G14 - Open 14 | Sicilian Defense: Closed, Traditional | |
| Aug 11, 2021 | Surya | 1–0 | Okabe | World Youth Cup 2021 O14-G14 - Open 14 | Indian Defense | |
| Aug 11, 2021 | Ramirez Camilla | 0–1 | Okabe | World Youth Cup 2021 O14-G14 - Open 14 | King's Indian Defense: Fianchetto Variation, Panno Variation | |
| Aug 11, 2021 | Koay | 1–0 | Okabe | World Youth Cup 2021 O14-G14 - Open 14 | Ruy Lopez: Closed | |
| Aug 11, 2021 | Richardson | 0–1 | Okabe | World Youth Cup 2021 O14-G14 - Open 14 | Four Knights Game: Italian Variation | |
| Aug 11, 2021 | Madhavan | 1–0 | Okabe | World Youth Cup 2021 O14-G14 - Open 14 | Four Knights Game | |
