| Nov 1, 2025 | Karlsson | ½–½ | Milligan | Round 11: Karlsson, Patrik - Milligan, Helen | Scotch Game: Scotch Gambit, Advance Variation | |
| Oct 31, 2025 | Milligan | ½–½ | Lo Martire | Round 10: Milligan, Helen - Lo Martire, Vincenzo | Pirc Defense: Classical Variation, Quiet System | |
| Oct 30, 2025 | Liuti | ½–½ | Milligan | Round 9: Liuti, Aldo Marco - Milligan, Helen | King's Indian Defense: Orthodox Variation, Positional Defense, Closed Line | |
| Oct 29, 2025 | Milligan | 0–1 | Skou | Round 8: Milligan, Helen - Skou, Niels | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Oct 28, 2025 | Schmahl | ½–½ | Milligan | Round 7: Schmahl, Stephan - Milligan, Helen | Torre Attack: Fianchetto Defense | |
| Oct 26, 2025 | Waddington | 1–0 | Milligan | Round 6: Waddington, Mike P - Milligan, Helen | Scotch Game: Mieses Variation | |
| Oct 25, 2025 | Milligan | ½–½ | Koops | Round 5: Milligan, Helen - Koops, Randolf | Nimzowitsch Defense: Williams Variation | |
| Oct 24, 2025 | Ribeiro | 1–0 | Milligan | Round 4: Ribeiro, Fernando - Milligan, Helen | King's Indian Attack: Symmetrical Defense | |
| Oct 23, 2025 | Milligan | ½–½ | Soppela | Round 3: Milligan, Helen - Soppela, Toni | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Oct 22, 2025 | Kotsur | 1–0 | Milligan | Round 2: Kotsur, Pavel - Milligan, Helen | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Oct 21, 2025 | Milligan | 1–0 | Meyer | Round 1: Milligan, Helen - Meyer, Gordon | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Sep 21, 2025 | Chan | ½–½ | Milligan | Dato Tan Chin Nam International Seniors’ Open Chess Championship | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Sep 20, 2025 | Milligan | ½–½ | Young | Dato Tan Chin Nam International Seniors’ Open Chess Championship | Sicilian Defense: Hyperaccelerated Dragon | |
| Sep 20, 2025 | Gatus | ½–½ | Milligan | Dato Tan Chin Nam International Seniors’ Open Chess Championship | London System, with Be2 | |
| Sep 20, 2025 | Milligan | ½–½ | Muzzaffar | Dato Tan Chin Nam International Seniors’ Open Chess Championship | Sicilian Defense: Moscow Variation | |
| Sep 19, 2025 | Milligan | ½–½ | Pulley | Dato Tan Chin Nam International Seniors’ Open Chess Championship | Caro-Kann Defense: Tartakower Variation | |
| Sep 18, 2025 | Liew | ½–½ | Milligan | Dato Tan Chin Nam International Seniors’ Open Chess Championship | Benoni Defense: Four Pawns Attack | |
| Sep 17, 2025 | Milligan | 1–0 | Lim | Dato Tan Chin Nam International Seniors’ Open Chess Championship | Italian Game: Hungarian Defense | |
| Sep 17, 2025 | Gibbons | ½–½ | Milligan | Dato Tan Chin Nam International Seniors’ Open Chess Championship | King's Indian Defense: Semi-Classical Variation, Benoni Variation | |
| Sep 15, 2025 | Milligan | 1–0 | Kuich | Dato Tan Chin Nam International Seniors’ Open Chess Championship | Caro-Kann Defense: Main Line | |
| Nov 26, 2024 | Milligan | 0–1 | Gaprindashvili | World Senior Chess Championship 2024 | Owen Defense | |
| Nov 25, 2024 | Milligan | ½–½ | Turebayeva | World Senior Chess Championship 2024 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Nov 24, 2024 | Strutinskaia | 0–1 | Milligan | World Senior Chess Championship 2024 | King's Indian Defense: Semi-Averbakh System | |
| Nov 21, 2024 | Folkova | 1–0 | Milligan | World Senior Chess Championship 2024 | Ruy Lopez: Closed, Flohr System | |
| Nov 17, 2024 | Grabuzova | 1–0 | Milligan | World Senior Chess Championship 2024 | King's Indian Defense: Makogonov Variation | |
| Feb 20, 2024 | Milligan | 1–0 | Tham | Commonwealth Chess Championship 2024 | Elephant Gambit: Paulsen Countergambit | |
| Feb 20, 2024 | Milligan | 1–0 | Ismadi | Commonwealth Chess Championship 2024 | Italian Game: Classical Variation, Giuoco Pianissimo, with a5 | |
| Feb 20, 2024 | Milligan | ½–½ | Lim | Commonwealth Chess Championship 2024 | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Feb 20, 2024 | Das | 1–0 | Milligan | Commonwealth Chess Championship 2024 | Ruy Lopez: Closed, Martinez Variation | |
| Feb 20, 2024 | Muraley | ½–½ | Milligan | Commonwealth Chess Championship 2024 | King's Indian Defense: Santasiere Variation | |
| Aug 11, 2024 | Milligan | 0–1 | Bayarmandakh | Round 2: Milligan, Helen - Bayarmandakh, Balgan | Italian Game: Hungarian Defense | |
| Oct 27, 2023 | Gaprindashvili | ½–½ | Milligan | World Senior Women's Championship | King's Indian Defense: Averbakh Variation, Modern Defense | |
| Oct 26, 2023 | Milligan | * | Seidemann | World Senior Women's Championship | ? | |
| — | Setyaki | 1–0 | Milligan | 22nd Bangkok Chess Club Open 2025 | Ruy Lopez: Closed, Bogoljubow Variation | |
