| Jun 14, 2025 | Regan | 1–0 | Morea | 2025 FIDE World Blitz Team Championship Pool B | Réti Opening | |
| Jun 14, 2025 | Aryaman Ganguly | 1–0 | Regan | 2025 FIDE World Blitz Team Championship Pool B | Alekhine Defense: Exchange Variation | |
| Jun 14, 2025 | Regan | 1–0 | Zhang | 2025 FIDE World Blitz Team Championship Pool B | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| Jun 14, 2025 | Lapushnian | 1–0 | Regan | 2025 FIDE World Blitz Team Championship Pool B | Alekhine Defense: Four Pawns Attack, Main Line | |
| Jun 14, 2025 | Regan | 1–0 | Omarov | 2025 FIDE World Blitz Team Championship Pool B | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Jun 14, 2025 | Muradyan | 0–1 | Regan | 2025 FIDE World Blitz Team Championship Pool B | Alekhine Defense: Exchange Variation | |
| Jun 14, 2025 | Regan | 1–0 | Ding | 2025 FIDE World Blitz Team Championship Pool B | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| Jun 14, 2025 | Nayberg | 0–1 | Regan | 2025 FIDE World Blitz Team Championship Pool B | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| Jun 14, 2025 | Regan | 0–1 | Mani | 2025 FIDE World Blitz Team Championship Pool B | Bird Opening: Dutch Variation | |
| Jun 14, 2025 | Corrigan | ½–½ | Regan | 2025 FIDE World Blitz Team Championship Pool B | Alekhine Defense: Four Pawns Attack | |
| Jun 14, 2025 | Regan | 1–0 | Veselow | 2025 FIDE World Blitz Team Championship Pool B | Bird Opening: Dutch Variation | |
| Jun 14, 2025 | Barwick | 0–1 | Regan | 2025 FIDE World Blitz Team Championship Pool B | Nimzo-Larsen Attack: Classical Variation | |
| Jun 13, 2025 | Regan | 0–1 | Ziems | Round 12: Regan, Natasha K - Ziems, Michael | English Opening: Agincourt Defense, Tarrasch Defense | |
| Jun 13, 2025 | Cepoi | 0–1 | Regan | Round 11: Cepoi, Gesneria-Codruta - Regan, Natasha K | Queen's Gambit Accepted | |
| Jun 13, 2025 | Regan | 0–1 | Schuster | Round 10: Regan, Natasha K - Schuster, Rebekka | English Opening: Agincourt Defense | |
| Jun 13, 2025 | Regan | ½–½ | Veselow | Round 9: Regan, Natasha K - Veselow, Zoe | English Opening: Symmetrical Variation | |
| Jun 12, 2025 | Zhunusbekova | 1–0 | Regan | Round 8: Zhunusbekova, Aimonchok - Regan, Natasha K | Vienna Game: Falkbeer Variation | |
| Jun 12, 2025 | Platschek | 1–0 | Regan | Round 7: Platschek, Luca - Regan, Natasha K | Dutch Defense | |
| Jun 12, 2025 | Regan | 0–1 | Kendall | Round 6: Regan, Natasha K - Kendall, Arthur | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Jun 12, 2025 | Yrysov | 0–1 | Regan | Round 5: Yrysov, Timur - Regan, Natasha K | Alekhine Defense: Exchange Variation | |
| Jun 11, 2025 | Regan | ½–½ | Kalender | 2025 FIDE World Rapid Team Championship matches 19-26 | English Opening: Agincourt Defense, Catalan Defense | |
| Jun 11, 2025 | Hng | ½–½ | Regan | 2025 FIDE World Rapid Team Championship matches 19-26 | Alekhine Defense: Normal Variation | |
| Jun 11, 2025 | Regan | 1–0 | Grigoryan | 2025 FIDE World Rapid Team Championschip matches 11-18 | Réti Opening: Anglo-Slav Variation, Bogoljubow Variation | |
| Jun 11, 2025 | Hou | 1–0 | Regan | 2025 FIDE World Rapid Team Championship | Vienna Game: Mieses Variation | |
| Apr 28, 2025 | Richard Anderson | 0–1 | Regan | Round 7: Richard Anderson - Regan, Natasha K | Three Knights Opening | |
| Apr 26, 2025 | Regan | ½–½ | Byron | Round 4: Regan, Natasha K - Byron, Alan M | Tarrasch Defense: Classical Variation | |
| Apr 25, 2025 | Regan | 0–1 | White | Round 2: Regan, Natasha K - White, Russell P | Bird Opening: Dutch Variation | |
| Apr 25, 2025 | Burrows | ½–½ | Regan | Round 3: Burrows, Martin P - Regan, Natasha K | Scotch Game: Lolli Variation | |
| Apr 24, 2025 | Hebden | 0–1 | Regan | Round 1: Hebden, Mark L - Regan, Natasha K | Queen's Gambit Accepted: Normal Variation, Traditional System | |
| Apr 13, 2025 | Kruczynski | ½–½ | Regan | ESTCC50 | King's Pawn Game: Alapin Opening | |
| Apr 12, 2025 | Machlowski | 0–1 | Regan | ESTCC50 | English Opening: King's English Variation, Reversed Closed Sicilian | |
| Apr 11, 2025 | Regan | 1–0 | Kruczynski | ESTCC50 | Zukertort Opening: Kingside Fianchetto | |
| Apr 10, 2025 | Regan | 0–1 | Holzke | ESTCC50 | Sicilian Defense: Hyperaccelerated Dragon | |
| Apr 9, 2025 | Regan | 1–0 | Van Kemenade | ESTCC50 | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Apr 8, 2025 | Duncan | 1–0 | Regan | ESTCC50 | Dutch Defense: Raphael Variation | |
| Apr 7, 2025 | Ograbek | ½–½ | Regan | ESTCC50 | Queen's Gambit Accepted: Normal Variation, Traditional System | |
| Feb 16, 2025 | Regan | 0–1 | Ledger | Round 6: Regan, Natasha K - Ledger, Stephen C | Réti Opening: Advance Variation | |
| Jan 26, 2025 | Pollack | 0–1 | Regan | Round 4: Pollack, Oscar - Regan, Natasha K | Scotch Game: Lolli Variation | |
| Jul 31, 2024 | Regan | 0–1 | Farrell | Round 3: Regan, Natasha K - Farrell, Neil | English Opening: Agincourt Defense | |
| Jul 29, 2024 | Regan | ½–½ | Faulkner | Round 1: Regan, Natasha K - Faulkner, Martin J | English Opening: Neo-Catalan | |
| Jul 11, 2024 | Regan | 1–0 | Czyz | wstcc2024o50 | Zukertort Opening: Dutch Variation | |
| Jul 9, 2024 | Regan | ½–½ | Clark | wstcc2024o50 | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Jul 7, 2024 | Dettmann | ½–½ | Regan | wstcc2024o50 | Zukertort Opening: Dutch Variation | |
| Jul 6, 2024 | Narva | ½–½ | Regan | wstcc2024o50 | Italian Game: Hungarian Defense | |
| Jul 5, 2024 | Fleish | 1–0 | Regan | wstcc2024o50 | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Jul 4, 2024 | Regan | 1–0 | Ortega | 50-1 | Réti Opening: Advance Variation | |
| May 28, 2024 | Regan | ½–½ | Mason | Round 7: Regan, Natasha K - Mason, Donald J | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| May 27, 2024 | Walley | 0–1 | Regan | Round 6: Walley, A Clive - Regan, Natasha K | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| May 26, 2024 | Regan | 0–1 | Byron | Round 4: Regan, Natasha K - Byron, Alan M | English Opening: Neo-Catalan | |
| May 25, 2024 | Regan | 1–0 | Drugan | Round 3: Regan, Natasha K - Drugan, Mark A | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| May 25, 2024 | Pitcher | 1–0 | Regan | Round 2: Pitcher, John - Regan, Natasha K | Alekhine Defense: Exchange Variation | |
| May 4, 2024 | Lim | * | Regan | Round 9: Lim, Mark - Regan, Natasha K | ? | |
| Apr 21, 2024 | Murawski | 0–1 | Regan | Round 5: Murawski, Jan - Regan, Natasha K | Indian Defense: Budapest Defense, Adler Variation | |
| Apr 21, 2024 | Regan | ½–½ | Dickenson | Round 4: Regan, Natasha K - Dickenson, Neil F | Modern Defense: Two Knights Variation | |
| Apr 20, 2024 | Regan | 1–0 | Welling | Round 2: Regan, Natasha K - Welling, Zac | Réti Opening: Anglo-Slav Variation, Torre System | |
| Apr 19, 2024 | Saivigneash S M | ½–½ | Regan | Round 1: Saivigneash S M - Regan, Natasha K | Dutch Defense | |
| Jan 14, 2024 | O'Connor | ½–½ | Regan | Main 4NCL League Division 2 - 2023/24 | Alekhine Defense: Sämisch Attack | |
| Jan 13, 2024 | Regan | 1–0 | Dicen | Main 4NCL League Division 2 - 2023/24 | English Opening: Agincourt Defense | |
| Aug 4, 2024 | Kilshaw | ½–½ | Regan | Round 7: Kilshaw, Joe - Regan, Natasha K | Vienna Game: Frankenstein-Dracula Variation | |
| Aug 3, 2024 | Regan | ½–½ | Burnett | Round 6: Regan, Natasha K - Burnett, Andrew | Sicilian Defense: Hyperaccelerated Dragon | |
| Aug 2, 2024 | Regan | 1–0 | Giulian | Round 5: Regan, Natasha K - Giulian, Rosemary A | English Opening: Neo-Catalan | |
| Aug 1, 2024 | Hasson | ½–½ | Regan | Round 4: Hasson, Peter - Regan, Natasha K | English Opening: Anglo-Dutch Defense | |
| Jul 30, 2024 | Strugar | 0–1 | Regan | Round 2: Strugar, Ioan-Euzeb - Regan, Natasha K | Bishop's Opening: Urusov Gambit, Keidansky Gambit | |
| Jul 20, 2023 | Regan | 1–0 | Buriene | European Senior Team Chess Championship 2023 50+ | English Opening: Neo-Catalan | |
| Jul 19, 2023 | Wozny | 0–1 | Regan | European Senior Team Chess Championship 2023 50+ | Alekhine Defense: Exchange Variation | |
| Jul 17, 2023 | Regan | 1–0 | Hogarth | European Senior Team Chess Championship 2023 50+ | Réti Opening: Advance Variation | |
| Jul 16, 2023 | Kantorik | 1–0 | Regan | European Senior Team Chess Championship 2023 50+ | Indian Defense: Budapest Defense, Rubinstein Variation | |
| Jul 15, 2023 | Regan | 1–0 | Sand | European Senior Team Chess Championship 2023 50+ | Réti Opening: Anglo-Slav Variation, Bogoljubow Variation | |
| — | Regan | 1–0 | Betts | Round 1: Regan, Natasha K - Betts, Richard | Queen's Pawn Game: Colle System | |
| — | Regan | ½–½ | Moyse | Round 3: Regan, Natasha K - Moyse, Nigel John | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| — | Regan | 0–1 | Ridge | Round 5: Regan, Natasha K - Ridge, Michael | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| — | Regan | ½–½ | Wheeler | Round 7: Regan, Natasha K - Wheeler, Tim | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| — | Cook | ½–½ | Regan | Round 2: Cook, Philip - Regan, Natasha K | Scotch Game: Mieses Variation | |
| — | Brown | 1–0 | Regan | Round 4: Brown, Alan M - Regan, Natasha K | Queen's Gambit Accepted: Old Variation | |
| — | Aitchison | 0–1 | Regan | Round 6: Aitchison, A Keith - Regan, Natasha K | Scotch Game: Scotch Gambit, Advance Variation | |