| May 13, 2026 | Balogun | ½–½ | Olisa | NIGERIA CHESS OLYMPIAD QUALIFIERS 2026 OPEN | Sicilian Defense: Najdorf Variation, Amsterdam Variation | |
| May 13, 2026 | OKHIPO | ½–½ | Olisa | NIGERIA CHESS OLYMPIAD QUALIFIERS 2026 OPEN | English Opening: Symmetrical Variation, Four Knights Variation | |
| May 13, 2026 | Olisa | ½–½ | LAPITE | NIGERIA CHESS OLYMPIAD QUALIFIERS 2026 OPEN | English Opening: Agincourt Defense | |
| May 12, 2026 | Olisa | 1–0 | NYUIMA | NIGERIA CHESS OLYMPIAD QUALIFIERS 2026 OPEN | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with .. d6 | |
| May 11, 2026 | Kigigha | 1–0 | Olisa | NIGERIA CHESS OLYMPIAD QUALIFIERS 2026 OPEN | King's Indian Defense: Fianchetto Variation, Classical Main Line | |
| May 11, 2026 | Olisa | ½–½ | EYETONGHAN | NIGERIA CHESS OLYMPIAD QUALIFIERS 2026 OPEN | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| May 9, 2026 | Olisa | 1–0 | AKINSEYE | NIGERIA CHESS OLYMPIAD QUALIFIERS 2026 OPEN | English Opening: Mikenas-Carls Variation | |
| May 9, 2026 | AIKHOJE | ½–½ | Olisa | NIGERIA CHESS OLYMPIAD QUALIFIERS 2026 OPEN | Queen's Pawn Game: London System | |
| May 8, 2026 | Olisa | ½–½ | ABDULRAHEEM | 46TH WORLD CHESS OLYMPIAD SELECTION (TRIALS) (OPENS) | English Opening: Agincourt Defense | |
| May 8, 2026 | EKUNKE | ½–½ | Olisa | 46TH WORLD CHESS OLYMPIAD SELECTION (TRIALS) (OPENS) | Sicilian Defense: O'Kelly Variation, Normal System | |
| May 7, 2026 | Olisa | 1–0 | EMMANUEL | 46TH WORLD CHESS OLYMPIAD SELECTION (TRIALS) (OPENS) | Indian Defense: Przepiorka Variation | |
| Dec 22, 2025 | KEYI | 0–1 | Olisa | NATIONAL CHESS CHAMPIONSHIP | Sicilian Defense: Najdorf Variation, Polugaevsky Variation, Simagin Line | |
| Dec 21, 2025 | Olisa | ½–½ | NYUIMA | NATIONAL CHESS CHAMPIONSHIP | English Opening: Agincourt Defense | |
| Dec 21, 2025 | OLANREWAJU | 0–1 | Olisa | NATIONAL CHESS CHAMPIONSHIP | Queen's Pawn Game: Colle System | |
| Dec 20, 2025 | Olisa | * | EYETONGHAN | NATIONAL CHESS CHAMPIONSHIP | ? | |
| Dec 19, 2025 | Olisa | 0–1 | ABDULRAHEEM | NATIONAL CHESS CHAMPIONSHIP | English Opening: King's English Variation, Two Knights Variation, Smyslov System | |
| Dec 18, 2025 | AIKHOJE | ½–½ | Olisa | NATIONAL CHESS CHAMPIONSHIP | Queen's Pawn Game: London System | |
| Dec 17, 2025 | Olisa | 1–0 | Balogun | NATIONAL CHESS CHAMPIONSHIP | Réti Opening: Anglo-Slav Variation, Gurevich System | |
| Dec 17, 2025 | Kigigha | 1–0 | Olisa | NATIONAL CHESS CHAMPIONSHIP | Catalan Opening | |
| Dec 17, 2025 | Olisa | 1–0 | AKINSEYE | NATIONAL CHESS CHAMPIONSHIP | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| Dec 17, 2025 | Olisa | 1–0 | OKHIPO | NATIONAL CHESS CHAMPIONSHIP | Réti Opening: Anglo-Slav Variation, Gurevich System | |
| Dec 16, 2025 | EKUNKE | * | Olisa | NATIONAL CHESS CHAMPIONSHIP | Queen's Pawn Game: London System | |
| Sep 20, 2025 | Olisa | 1–0 | Dasaolu | Semi Final - 2: Olisa, Tennyson Ewomazino - Dasaolu, Rotimi | Zukertort Opening: Double Fianchetto Attack | |
| Sep 20, 2025 | Dasaolu | 0–1 | Olisa | Semi Final - 1: Dasaolu, Rotimi - Olisa, Tennyson Ewomazino | Queen's Gambit Declined: Ragozin Defense | |
| Sep 20, 2025 | Olisa | 1–0 | AFAM | Quarter Final - 2: Olisa, Tennyson Ewomazino - AFAM, Ndidi Ernest | Nimzo-Larsen Attack: Classical Variation | |
| Sep 20, 2025 | AFAM | 1–0 | Olisa | Quarter Final - 1: AFAM, Ndidi Ernest - Olisa, Tennyson Ewomazino | Sicilian Defense: Old Sicilian | |
| Sep 20, 2025 | Olisa | ½–½ | EYETONGHAN | Final - 2: Olisa, Tennyson Ewomazino - EYETONGHAN, Denyefa Callistus | Nimzo-Larsen Attack: Classical Variation | |
| Sep 20, 2025 | EYETONGHAN | 0–1 | Olisa | Final - 1: EYETONGHAN, Denyefa Callistus - Olisa, Tennyson Ewomazino | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation | |
| Sep 20, 2025 | Olisa | 1–0 | AJIEH Ebenezer Osamudiamen | Round 8: Olisa, Tennyson Ewomazino - AJIEH Ebenezer Osamudiamen | English Opening | |
| Sep 20, 2025 | Okeleye David Timilehin | 0–1 | Olisa | Round 7: Okeleye David Timilehin - Olisa, Tennyson Ewomazino | Zukertort Opening: Kingside Fianchetto | |
| Sep 19, 2025 | Olisa | 0–1 | IYAMU | Round 6: Olisa, Tennyson Ewomazino - IYAMU, Yehudi Osafona | English Opening: Agincourt Defense | |
| Sep 19, 2025 | OKEMAKINDE | ½–½ | Olisa | Round 5: OKEMAKINDE, Toluwanimi - Olisa, Tennyson Ewomazino | Ruy Lopez: Open Berlin Defense, l'Hermet Variation | |
| Sep 19, 2025 | Olisa | 1–0 | EYETONGHAN | Round 4: Olisa, Tennyson Ewomazino - EYETONGHAN, Denyefa Callistus | Réti Opening: Anglo-Slav Variation, Bled Variation | |
| Sep 19, 2025 | SALAKO | 0–1 | Olisa | Round 3: SALAKO, Clinton Oluwatoba - Olisa, Tennyson Ewomazino | Queen's Pawn Game: London System | |
| Sep 19, 2025 | Olisa | ½–½ | AIKHOJE | Round 9: Olisa, Tennyson Ewomazino - AIKHOJE, Odion | Zukertort Opening: Nimzo-Larsen Variation | |
| Sep 19, 2025 | Olisa | 1–0 | OKEKEDIKE | Round 2: Olisa, Tennyson Ewomazino - OKEKEDIKE, Ogechukwu Gregory | Zukertort Opening | |
| Sep 19, 2025 | Adeosun | * | Olisa | Round 1: Adeosun, Joshua - Olisa, Tennyson Ewomazino | Indian Defense | |
| Sep 15, 2025 | Olisa | ½–½ | Jobava | FIDE Grand Swiss 2025 | Slav Defense: Chebanenko Variation | |
| Sep 14, 2025 | Hammer | 1–0 | Olisa | FIDE Grand Swiss 2025 | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation | |
| Sep 13, 2025 | Olisa | 0–1 | Madaminov | FIDE Grand Swiss 2025 | Zukertort Opening: Nimzo-Larsen Variation | |
| Sep 12, 2025 | Muradli | 1–0 | Olisa | FIDE Grand Swiss 2025 | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| Sep 11, 2025 | Olisa | 0–1 | Vakhidov | FIDE Grand Swiss 2025 | Indian Defense: Przepiorka Variation | |
| Sep 9, 2025 | Wagner | 1–0 | Olisa | FIDE Grand Swiss 2025 | Bogo-Indian Defense: Grünfeld Variation | |
| Sep 8, 2025 | Xu | 1–0 | Olisa | FIDE Grand Swiss 2025 | Indian Defense: Normal Variation | |
| Sep 7, 2025 | Olisa | 0–1 | Sjugirov | FIDE Grand Swiss 2025 | English Opening: King's English Variation, Four Knights Variation, Quiet Line | |
| Sep 6, 2025 | Abdisalimov | ½–½ | Olisa | FIDE Grand Swiss 2025 | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Sep 5, 2025 | Olisa | 0–1 | Hovhannisyan | FIDE Grand Swiss 2025 | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| Sep 4, 2025 | Salem | 1–0 | Olisa | FIDE Grand Swiss 2025 | Bogo-Indian Defense: Grünfeld Variation | |
| May 23, 2025 | OLISA | 1–0 | OYAKHILOME | Round 6: OLISA, Tennyson Ewomazino - OYAKHILOME, Daniel Oise | English Opening: Caro-Kann Defensive System | |
| May 21, 2025 | TINUBU | 0–1 | OLISA | Round 5: TINUBU, Babajide - OLISA, Tennyson Ewomazino | Nimzo-Indian Defense: St. Petersburg Variation | |
| May 21, 2025 | OLISA | 1–0 | ADEJOH | Round 4: OLISA, Tennyson Ewomazino - ADEJOH, Joshua | English Opening: King's English Variation, Reversed Sicilian | |
| May 20, 2025 | EYENGHE | 0–1 | OLISA | Round 3: EYENGHE, Sunny - OLISA, Tennyson Ewomazino | Semi-Slav Defense: Stoltz Variation | |
| May 20, 2025 | OLISA | 1–0 | AKINROGUNDE | Round 2: OLISA, Tennyson Ewomazino - AKINROGUNDE, Clinton | English Opening: Symmetrical Variation, Fianchetto Variation | |
| May 19, 2025 | ORE | 0–1 | OLISA | Round 1: ORE, Olajide Francis - OLISA, Tennyson Ewomazino | Sicilian Defense: Najdorf Variation, English Attack | |
| Apr 16, 2025 | Nassr | ½–½ | OLISA | Round 9: Nassr, Lina - OLISA, Tennyson Ewomazino | East Indian Defense | |
| Apr 15, 2025 | OLISA | 1–0 | Amako | Round 7: OLISA, Tennyson Ewomazino - Amako, Marc Arnold | English Opening | |
| Apr 15, 2025 | Mahamat Hachim Bachar | 0–1 | OLISA | Round 8: Mahamat Hachim Bachar - OLISA, Tennyson Ewomazino | Indian Defense | |
| Apr 14, 2025 | OLISA | 1–0 | Ayemou | Round 5: OLISA, Tennyson Ewomazino - Ayemou, Mazan Emmanuela Esther | King's Indian Defense: Petrosian Variation, Stein Defense | |
| Apr 14, 2025 | SULEIMAN | 0–1 | OLISA | Round 6: SULEIMAN, Azumi Ayisha - OLISA, Tennyson Ewomazino | Indian Defense | |
| Apr 13, 2025 | OLISA | 1–0 | ABDULRAHEEM | Round 4: OLISA, Tennyson Ewomazino - ABDULRAHEEM, Abdulrahman Akintoye | English Opening: Caro-Kann Defensive System | |
| Apr 13, 2025 | Wafa | 1–0 | OLISA | Round 3: Wafa, Shrook - OLISA, Tennyson Ewomazino | Sicilian Defense: Najdorf Variation, English Attack | |
| Apr 12, 2025 | OLISA | 1–0 | Ofowino | Round 1: OLISA, Tennyson Ewomazino - Ofowino, Toritsemuwa | English Opening: Caro-Kann Defensive System | |
| Apr 12, 2025 | OLISA | 1–0 | Sana Omprakash Kayyar | Round 2: OLISA, Tennyson Ewomazino - Sana Omprakash Kayyar | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Apr 8, 2025 | OLISA | 1–0 | Balogun | Round 9: OLISA, Tennyson Ewomazino - Balogun, Oluwafemi Daniel | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | |
| Apr 8, 2025 | OLISA | 1–0 | EYETONGHAN | Round 8: OLISA, Tennyson Ewomazino - EYETONGHAN, Denyefa Callistus | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | |
| Apr 6, 2025 | Ortega Amarelle | 0–1 | OLISA | Round 7: Ortega Amarelle, Mariano - OLISA, Tennyson Ewomazino | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Apr 6, 2025 | OLISA | 0–1 | AIKHOJE | Round 6: OLISA, Tennyson Ewomazino - AIKHOJE, Odion | English Opening: Symmetrical Variation, Three Knights Variation | |
| Apr 4, 2025 | OLISA | 1–0 | Anhwere | Round 5: OLISA, Tennyson Ewomazino - Anhwere, Bernard | English Opening: Caro-Kann Defensive System | |
| Apr 3, 2025 | Hapali | 0–1 | OLISA | Round 4: Hapali, Axel Moaye Ponou Angoula - OLISA, Tennyson Ewomazino | Sicilian Defense: Najdorf Variation | |
| Apr 3, 2025 | OLISA | 1–0 | Diarra | Round 3: OLISA, Tennyson Ewomazino - Diarra, Sirike | Old Indian Defense: Two Knights Variation | |
| Apr 2, 2025 | OLISA | 1–0 | Etey | Round 1: OLISA, Tennyson Ewomazino - Etey, Yaovi Agusto | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Apr 1, 2025 | ABDULRAHEEM | 1–0 | OLISA | Round 2: ABDULRAHEEM, Abdulrahman Akintoye - OLISA, Tennyson Ewomazino | Trompowsky Attack | |
| Apr 1, 2024 | OLISA | 0–1 | Babalola | Round 9: OLISA, Tennyson Ewomazino - Babalola, Adebayo | English Opening: King's English Variation, Two Knights Variation, Smyslov System | |
| Mar 31, 2024 | UNWANA | 0–1 | OLISA | Round 8: UNWANA, Eugene Ekpoikong - OLISA, Tennyson Ewomazino | Zukertort Opening: Kingside Fianchetto | |
| Mar 31, 2024 | OLISA | ½–½ | OYEPITAN | Round 7: OLISA, Tennyson Ewomazino - OYEPITAN, Joshua Ayodeji | English Opening: Symmetrical Variation, Full Symmetry Line | |
| Mar 30, 2024 | CHIMA MOUNT ZION KENECHUKU | ½–½ | OLISA | Round 6: CHIMA MOUNT ZION KENECHUKU - OLISA, Tennyson Ewomazino | Queen's Pawn Game: London System | |
| Mar 30, 2024 | OLISA | ½–½ | EYENGHE | Round 5: OLISA, Tennyson Ewomazino - EYENGHE, Sunny | English Opening: Symmetrical Variation, Hedgehog Defense | |
| Mar 28, 2024 | EDUNWALE | ½–½ | OLISA | Round 1: EDUNWALE, Hakeem Olajide King - OLISA, Tennyson Ewomazino | Zukertort Opening: Kingside Fianchetto | |
| — | Olisa | 1–0 | BABAYANJU | Round 2: Olisa, Tennyson Ewomazino - BABAYANJU, Rotimi | Mexican Defense | |
| — | Olisa | 0–1 | EMMANUEL | Round 4: Olisa, Tennyson Ewomazino - EMMANUEL, Joy Idara | King's Indian Defense: Fianchetto Variation, Classical Main Line | |
| — | Olisa | 1–0 | OSAYANDE | Round 6: Olisa, Tennyson Ewomazino - OSAYANDE, Kingsley | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | |
| — | SOLIU | 0–1 | Olisa | Round 1: SOLIU, Hassann - Olisa, Tennyson Ewomazino | Sicilian Defense: Moscow Variation, Main Line | |
| — | OZIEGBE | 0–1 | Olisa | Round 3: OZIEGBE, Promise - Olisa, Tennyson Ewomazino | Bogo-Indian Defense: Nimzowitsch Variation | |
| — | Oluwadara | 0–1 | Olisa | Round 5: Oluwadara, Adegbayi - Olisa, Tennyson Ewomazino | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| — | AKINSEYE | 0–1 | Olisa | Round 7: AKINSEYE, Oladotun - Olisa, Tennyson Ewomazino | Indian Defense | |