| May 4, 2026 | Nicholas | 1–0 | Kilambi | Round 11: Nicholas, Koichi B - Kilambi, Venkata Ananth Akshay | Caro-Kann Defense: Two Knights Attack | |
| May 3, 2026 | Turner | 1–0 | Nicholas | Round 10: Turner, Lewis A - Nicholas, Koichi B | Ruy Lopez: Closed, Martinez Variation | |
| May 2, 2026 | Nicholas | 1–0 | MacDonald | Round 9: Nicholas, Koichi B - MacDonald, Duncan | Caro-Kann Defense: Two Knights Attack | |
| Apr 2, 2026 | Sibashvili | 1–0 | Nicholas | Grenke Chess Festival 2026 Open | Queen's Gambit Accepted: Central Variation, Greco Variation | |
| Mar 22, 2026 | Nicholas | 0–1 | Swanson | Round 8: Nicholas, Koichi B - Swanson, Stephen | Modern Defense: Standard Defense | |
| Mar 21, 2026 | Burnett | 0–1 | Nicholas | Round 7: Burnett, Jim - Nicholas, Koichi B | Benko Gambit | |
| Feb 8, 2026 | Keen | 0–1 | Nicholas | Round 6: Keen, Maya - Nicholas, Koichi B | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Feb 7, 2026 | Nicholas | 1–0 | Terler | Round 5: Nicholas, Koichi B - Terler, Bohdan | Caro-Kann Defense: Endgame Variation | |
| Jan 11, 2026 | Nicholas | ½–½ | Rawlinson | Round 4: Nicholas, Koichi B - Rawlinson, Aidan M | Caro-Kann Defense: Advance Variation | |
| Jan 10, 2026 | Om Reddy Jayar | 1–0 | Nicholas | Round 3: Om Reddy Jayar - Nicholas, Koichi B | English Opening: Symmetrical Variation, Botvinnik System | |
| Dec 7, 2025 | Aghayev | 1–0 | Nicholas | Round 6: Aghayev, Miragha - Nicholas, Koichi B | Four Knights Game: Gunsberg Variation | |
| Dec 6, 2025 | Royal | 1–0 | Nicholas | Round 4: Royal, Shreyas - Nicholas, Koichi B | English Opening: Symmetrical Variation, Anti-Benoni Variation, Geller Variation | |
| Dec 6, 2025 | Nicholas | 0–1 | Iniyan | Round 2: Nicholas, Koichi B - Iniyan, Pa | Sicilian Defense: Scheveningen Variation, English Attack, with f3 | |
| Nov 2, 2025 | Varnam | 1–0 | Nicholas | Round 2: Varnam, Liam D - Nicholas, Koichi B | Ruy Lopez: Closed, Anti-Marshall | |
| Nov 1, 2025 | Nicholas | 1–0 | Howell | Round 1: Nicholas, Koichi B - Howell, Susan C | French Defense: Rubinstein Variation | |
| May 5, 2025 | Nicholas | 1–0 | Alldritt | Round 11: Nicholas, Koichi B - Alldritt, Nigel R E | French Defense: Winawer Variation, Warsaw Variation | |
| May 4, 2025 | Baer | 0–1 | Nicholas | Round 10: Baer, Bruce L - Nicholas, Koichi B | Zukertort Opening | |
| May 3, 2025 | Nicholas | ½–½ | Zakarian | Round 9: Nicholas, Koichi B - Zakarian, Dimitrios Levon | Sicilian Defense: Kan Variation | |
| Mar 2, 2025 | Nicholas | 0–1 | Vaidyanathan | Round 11: Nicholas, Koichi B - Vaidyanathan, Adithya | Van Geet Opening | |
| Feb 16, 2025 | Gilmore | ½–½ | Nicholas | Round 6: Gilmore, Simon N - Nicholas, Koichi B | Scotch Game: Schmidt Variation | |
| Mar 2, 2025 | Nicholas | 1–0 | Parikh | Round 7: Nicholas, Koichi B - Parikh, Naavya | Rapport-Jobava System | |
| Mar 2, 2025 | Nicholas | 1–0 | Patel | Round 9: Nicholas, Koichi B - Patel, Zain | Rapport-Jobava System | |
| Mar 2, 2025 | Takvorian | 0–1 | Nicholas | Round 8: Takvorian, Sebouh - Nicholas, Koichi B | Petrov's Defense: Damiano Variation | |
| Mar 2, 2025 | Banerjee | 0–1 | Nicholas | Round 10: Banerjee, Supratit - Nicholas, Koichi B | Four Knights Game: Scotch Variation, Schmid Defense | |
| Mar 1, 2025 | Nicholas | 1–0 | Liu | Round 1: Nicholas, Koichi B - Liu, Kunyu Vincent | Van Geet Opening: Napoleon Attack | |
| Mar 1, 2025 | Nicholas | 1–0 | Kumar | Round 3: Nicholas, Koichi B - Kumar, Sachin | Rapport-Jobava System | |
| Mar 1, 2025 | Nicholas | 0–1 | Pritchett | Round 4: Nicholas, Koichi B - Pritchett, Craig W | Van Geet Opening | |
| Mar 1, 2025 | Larchikov | 1–0 | Nicholas | Round 2: Larchikov, Maksym - Nicholas, Koichi B | Benoni Defense: King's Indian System | |
| Mar 1, 2025 | Sennaroglu | ½–½ | Nicholas | Round 5: Sennaroglu, Djan - Nicholas, Koichi B | Petrov's Defense: Modern Attack, Center Attack | |
| Mar 1, 2025 | Pyda | ½–½ | Nicholas | Round 6: Pyda, Arjun - Nicholas, Koichi B | Bishop's Opening: Vienna Hybrid | |
| Feb 15, 2025 | Nicholas | ½–½ | Fallowfield | Round 5: Nicholas, Koichi B - Fallowfield, Jeremy R | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jul 31, 2024 | Ther | ½–½ | Nicholas | Round 5: Ther, Mate - Nicholas, Koichi B | Four Knights Game: Spanish Variation, Rubinstein Variation | |
| Jul 29, 2024 | Zhang | 0–1 | Nicholas | Round 3: Zhang, Junyi - Nicholas, Koichi B | French Defense: Exchange Variation | |
| Jul 28, 2024 | Nicholas | 1–0 | Kirupakaran | Round 2: Nicholas, Koichi B - Kirupakaran, Vishnu | Sicilian Defense: Four Knights Variation, Cobra Variation | |
| Jun 23, 2024 | Nicholas | ½–½ | Green | Round 7: Nicholas, Koichi B - Green, Michael | Modern Defense: Standard Line | |
| Jun 22, 2024 | Nicholas | 0–1 | Turner | Round 6: Nicholas, Koichi B - Turner, Lewis A | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| Jun 22, 2024 | Bowcott-Terry | 1–0 | Nicholas | Round 5: Bowcott-Terry, Finlay - Nicholas, Koichi B | Italian Game: Two Knights Defense | |
| Jun 21, 2024 | Nicholas | ½–½ | Badacsonyi | Round 4: Nicholas, Koichi B - Badacsonyi, Frankie | Sicilian Defense: Boleslavsky Variation | |
| Jun 21, 2024 | Dias | 0–1 | Nicholas | Round 3: Dias, Savin - Nicholas, Koichi B | Benko Gambit Accepted: Fully Accepted Variation | |
| Jun 20, 2024 | Nicholas | 1–0 | Patel | Round 2: Nicholas, Koichi B - Patel, Zain | Caro-Kann Defense: Tartakower Variation | |
| Jun 20, 2024 | Sefton | 1–0 | Nicholas | Round 1: Sefton, Adam - Nicholas, Koichi B | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| May 6, 2024 | Pigott | ½–½ | Nicholas | Round 11: Pigott, John C - Nicholas, Koichi B | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| May 4, 2024 | Nicholas | 0–1 | Hryshchenko | Round 9: Nicholas, Koichi B - Hryshchenko, Kamila | Modern Defense: Standard Defense | |
| Mar 16, 2024 | Nicholas | 1–0 | Borrowdale | Round 7: Nicholas, Koichi B - Borrowdale, Graham E | French Defense: Tarrasch Variation, Pawn Center Variation | |
| Mar 3, 2024 | Nicholas | 1–0 | Cancedda-Dupuis | British Rapidplay Championship 2024 | Sicilian Defense: Scheveningen Variation, English Attack, with f3 | |
| Mar 3, 2024 | Banerjee | 1–0 | Nicholas | British Rapidplay Championship 2024 | Scotch Game: Schmidt Variation | |
| Mar 3, 2024 | Southcott-Moyers | 0–1 | Nicholas | British Rapidplay Championship 2024 | Benko Gambit Accepted: Pawn Return Variation | |
| Mar 3, 2024 | Nicholas | 0–1 | Nawalaniec | British Rapidplay Championship 2024 | Sicilian Defense: Najdorf Variation, English Attack | |
| Mar 3, 2024 | Starley | 0–1 | Nicholas | British Rapidplay Championship 2024 | Ruy Lopez: Closed | |
| Mar 2, 2024 | Nicholas | 0–1 | Martin | British Rapidplay Championship 2024 | Caro-Kann Defense: Classical Variation, Main Line | |
| Mar 2, 2024 | Zajaczkowski | 0–1 | Nicholas | British Rapidplay Championship 2024 | King's Gambit Accepted: Kieseritzky Gambit, Kolisch Defense | |
| Mar 2, 2024 | Nicholas | 1–0 | Frostick | British Rapidplay Championship 2024 | Sicilian Defense: Four Knights Variation | |
| Mar 2, 2024 | Kennedy | 0–1 | Nicholas | British Rapidplay Championship 2024 | Italian Game: Scotch Gambit, Max Lange Attack, Spielmann Defense | |
| Mar 2, 2024 | Nicholas | 0–1 | Hryshchenko | British Rapidplay Championship 2024 | Modern Defense: Standard Defense | |
| Mar 2, 2024 | Casti | 0–1 | Nicholas | British Rapidplay - lower boards | Danish Gambit Accepted: Classical Defense | |
| Feb 10, 2024 | Nicholas | ½–½ | Graham | 4NCL Division 2 2023-2024 | Ruy Lopez: Exchange Variation, Gligoric Variation | |
| Jan 14, 2024 | Nicholas | ½–½ | Gallagher | Main 4NCL League Division 2 - 2023/24 | Sicilian Defense: Dragon Variation | |
| Jan 13, 2024 | Korshunov | 1–0 | Nicholas | Main 4NCL League Division 2 - 2023/24 | Indian Defense: Pseudo-Benko | |
| Dec 21, 2024 | Nicholas | 0–1 | Buckley | Round 9: Nicholas, Koichi B - Buckley, Graeme N | Sicilian Defense: Four Knights Variation, Cobra Variation | |
| Dec 21, 2024 | Dong | 1–0 | Nicholas | Round 5: Dong, Bao Nghia - Nicholas, Koichi B | Sicilian Defense: Nimzowitsch Variation, Closed Variation | |
| Dec 21, 2024 | Grieve | 0–1 | Nicholas | Round 8: Grieve, Harry - Nicholas, Koichi B | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Dec 21, 2024 | Navrotescu | 1–0 | Nicholas | Round 10: Navrotescu, Andreea - Nicholas, Koichi B | Benko Gambit Accepted: Fully Accepted Variation | |
| Dec 10, 2024 | Nicholas | 1–0 | Paichadze | Round 2: Nicholas, Koichi B - Paichadze, Luka | ? | |
| Dec 10, 2024 | Nicholas | 1–0 | Lauda | Round 4: Nicholas, Koichi B - Lauda, Alexandr | ? | |
| Dec 10, 2024 | Nicholas | 1–0 | Wyss | Round 6: Nicholas, Koichi B - Wyss, Jonas | ? | |
| Dec 10, 2024 | Nicholas | 0–1 | Malicka | Round 8: Nicholas, Koichi B - Malicka, Maria | ? | |
| Dec 10, 2024 | Nicholas | 0–1 | Maltsevskaya | Round 10: Nicholas, Koichi B - Maltsevskaya, Aleksandra | ? | |
| Dec 10, 2024 | Pantsulaia | 0–1 | Nicholas | Round 1: Pantsulaia, Levan - Nicholas, Koichi B | ? | |
| Dec 10, 2024 | Domalchuk-Jonasson | 1–0 | Nicholas | Round 3: Domalchuk-Jonasson, Aleksandr - Nicholas, Koichi B | ? | |
| Dec 10, 2024 | Gaponenko | 1–0 | Nicholas | Round 5: Gaponenko, Inna - Nicholas, Koichi B | ? | |
| Dec 10, 2024 | Kesidis | 1–0 | Nicholas | Round 7: Kesidis, Odyseas - Nicholas, Koichi B | ? | |
| Dec 10, 2024 | Filiz | 0–1 | Nicholas | Round 9: Filiz, Enes Kayra - Nicholas, Koichi B | ? | |
| Dec 10, 2024 | Yuste Valenzuela | 1–0 | Nicholas | Round 11: Yuste Valenzuela, Alejandro - Nicholas, Koichi B | ? | |
| Dec 9, 2024 | Horvath | 1–0 | Nicholas | Round 5: Horvath, Dominik - Nicholas, Koichi B | Van Geet Opening | |
| Dec 7, 2024 | Nicholas | 0–1 | Kadric | Round 1: Nicholas, Koichi B - Kadric, Denis | Modern Defense: Standard Defense | |
| Nov 24, 2024 | Nicholas | 0–1 | Thompson | Round 2: Nicholas, Koichi B - Thompson, Ian D | French Defense: Tarrasch Variation, Open System | |
| Nov 23, 2024 | Horton | 1–0 | Nicholas | Round 1: Horton, Jamie A - Nicholas, Koichi B | Nimzo-Indian Defense: Classical Variation | |
| Aug 4, 2024 | Pelling | ½–½ | Nicholas | Round 9: Pelling, Kyle - Nicholas, Koichi B | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Aug 3, 2024 | Nicholas | 0–1 | Bharat Kumar | Round 8: Nicholas, Koichi B - Bharat Kumar, Balahari | Sicilian Defense: Kveinis Variation | |
| Aug 2, 2024 | Nicholas | 0–1 | Fava | Round 7: Nicholas, Koichi B - Fava, Lorenzo | French Defense: Rubinstein Variation, Blackburne Defense | |
| Aug 1, 2024 | Roberts | 0–1 | Nicholas | Round 6: Roberts, David L - Nicholas, Koichi B | Scotch Game: Mieses Variation | |
| Jul 30, 2024 | Nicholas | 1–0 | McCarthy | Round 4: Nicholas, Koichi B - McCarthy, Damian | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Breyer Variation | |
| Nov 12, 2023 | Nicholas | ½–½ | Menzies | 4NCL Division Two | Caro-Kann Defense: Classical Variation, Main Line | |
| Nov 11, 2023 | Farrand | ½–½ | Nicholas | Main 4NCL League Division 2 - 2023/24 | English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | |
| — | Nicholas | 1–0 | Rich | Round 2: Nicholas, Koichi B - Rich, Aaron | French Defense: Steinitz Variation, Boleslavsky Variation | |
| — | Nicholas | 0–1 | Cancedda-Dupuis | Round 4: Nicholas, Koichi B - Cancedda-Dupuis, Livio | Sicilian Defense: Lasker-Pelikan Variation | |
| — | Nicholas | 1–0 | Sharma | Round 7: Nicholas, Koichi B - Sharma, Josh | Scotch Game: Scotch Gambit, Advance Variation | |
| — | Nicholas | ½–½ | Ortiz Sanchez | Round 9: Nicholas, Koichi B - Ortiz Sanchez, Luis | Sicilian Defense: Accelerated Dragon | |
| — | Gunathilake | 0–1 | Nicholas | Round 1: Gunathilake, M D Vinuda Shenal - Nicholas, Koichi B | Queen's Gambit Accepted: Classical Defense, Alekhine System | |
| — | Brown | 0–1 | Nicholas | Round 3: Brown, Tom - Nicholas, Koichi B | Queen's Gambit Accepted: Furman Variation | |
| — | Schell | ½–½ | Nicholas | Round 6: Schell, Finn - Nicholas, Koichi B | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| — | Amoako Philip Selikem Yao | 0–1 | Nicholas | Round 8: Amoako Philip Selikem Yao - Nicholas, Koichi B | Ruy Lopez: Closed, Anti-Marshall | |