| Mar 30, 2026 | Nelson | 1–0 | Hertog | Milton Keynes FIDE Chess Congress 2026 | Caro-Kann Defense: Karpov Variation | |
| Mar 30, 2026 | Sheikh | ½–½ | Hertog | Milton Keynes FIDE Chess Congress 2026 | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Mar 29, 2026 | Carter | 0–1 | Hertog | Milton Keynes FIDE Chess Congress 2026 | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Mar 29, 2026 | Hertog | 1–0 | Pavan G V | Milton Keynes FIDE Chess Congress 2026 | Slav Defense: Quiet Variation, Schallopp Defense | |
| Mar 28, 2026 | Hertog | ½–½ | Hale | Milton Keynes FIDE Chess Congress 2026 | Catalan Opening: Open Defense, Classical Line | |
| Jul 20, 2025 | Hertog | 0–1 | Vaidyanathan | ECF English Open Championship 2025 | Catalan Opening: Closed Variation, Traditional Variation | |
| Jul 20, 2025 | Rughani | 1–0 | Hertog | ECF English Open Championship 2025 | Queen's Indian Defense: Yates Variation | |
| Jul 19, 2025 | Hertog | 1–0 | Clark | ECF English Open Championship 2025 | Benoni Defense: Knight's Tour Variation | |
| Jul 19, 2025 | Marsden | 1–0 | Hertog | ECF English Open Championship 2025 | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Jul 18, 2025 | Hertog | 0–1 | Savidge | ECF English Open Championship 2025 | Benoni Defense: Czech Benoni Defense | |
| Jul 18, 2025 | Cont | 1–0 | Hertog | ECF English Open Championship 2025 | Zukertort Opening | |
| Jul 18, 2025 | Hertog | ½–½ | Merriman | ECF English Open Championship 2025 | Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line | |
| May 30, 2025 | Jenni | 1–0 | Hertog | Round 3: Jenni, Florian - Hertog, Alexander | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| May 5, 2025 | Hertog | ½–½ | Serbanescu | Round 11: Hertog, Alexander - Serbanescu, Diana-Maria | Queen's Pawn Game | |
| May 4, 2025 | Gayson | 1–0 | Hertog | Round 10: Gayson, Peter M - Hertog, Alexander | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| May 3, 2025 | Hertog | 1–0 | Shepherd | Round 9: Hertog, Alexander - Shepherd, Tom | Queen's Gambit Accepted: Old Variation | |
| Apr 21, 2025 | Hertog | 1–0 | Gilmore | Round 7: Hertog, Alexander - Gilmore, Simon N | Catalan Opening | |
| Apr 21, 2025 | Sahoo | 0–1 | Hertog | Round 6: Sahoo, Shivam - Hertog, Alexander | Nimzo-Indian Defense: Normal Variation | |
| Apr 20, 2025 | Hertog | 1–0 | Aryaman Ganguly | Round 5: Hertog, Alexander - Aryaman Ganguly | Catalan Opening: Closed Variation, Traditional Variation | |
| Apr 20, 2025 | Ward | 1–0 | Hertog | Round 4: Ward, Cian - Hertog, Alexander | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Apr 19, 2025 | Hertog | 0–1 | Jones | Round 2: Hertog, Alexander - Jones, Steven A | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Apr 19, 2025 | Miller | ½–½ | Hertog | Round 3: Miller, George - Hertog, Alexander | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Apr 18, 2025 | Hertog | 0–1 | Vaidyanathan | Round 1: Hertog, Alexander - Vaidyanathan, Adithya | Benko Gambit Accepted: Fully Accepted Variation | |
| Jul 10, 2024 | Ward | ½–½ | Hertog | Round 9: Ward, Cian - Hertog, Alexander | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Jul 9, 2024 | Rathbone-Jones | 0–1 | Hertog | Round 8: Rathbone-Jones, Ifan - Hertog, Alexander | Pseudo Queen's Indian Defense | |
| Jul 9, 2024 | Hertog | ½–½ | Cuenca Jimenez | Round 7: Hertog, Alexander - Cuenca Jimenez, Francisco Javier | Queen's Gambit Declined | |
| Jul 8, 2024 | Hertog | ½–½ | Tapp | Round 6: Hertog, Alexander - Tapp, James | Benoni Defense: Knight's Tour Variation | |
| Jul 7, 2024 | Liu | ½–½ | Hertog | Round 5: Liu,Tianyi (Jack) - Hertog, Alexander | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jul 7, 2024 | Hertog | ½–½ | Marusenko | Round 4: Hertog, Alexander - Marusenko, Petr | King's Indian Defense: Fianchetto Variation, Uhlmann-Szabo System | |
| Jul 6, 2024 | Hng | ½–½ | Hertog | Round 3: Hng, Mei-Xian Eunice - Hertog, Alexander | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jul 5, 2024 | Hertog | 1–0 | Chantrell | Round 2: Hertog, Alexander - Chantrell, Paul | Slav Defense: Modern Line | |
| Jul 5, 2024 | Wells | 1–0 | Hertog | Round 1: Wells, Peter K - Hertog, Alexander | Queen's Indian Defense: Yates Variation | |
| Jun 23, 2024 | Varley | 1–0 | Hertog | Round 7: Varley, Joe - Hertog, Alexander | Caro-Kann Defense: Maróczy Variation | |
| Jun 22, 2024 | Hertog | ½–½ | Zhu | Round 6: Hertog, Alexander - Zhu, Pengxiao | Slav Defense: Modern Line | |
| Jun 22, 2024 | Ali | 0–1 | Hertog | Round 5: Ali, Golam S - Hertog, Alexander | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jun 21, 2024 | Hertog | 0–1 | Turner | Round 4: Hertog, Alexander - Turner, Lewis A | King's Indian Defense: Fianchetto Variation, Yugoslav Variation | |
| Jun 21, 2024 | Kothari | ½–½ | Hertog | Round 3: Kothari, Jai - Hertog, Alexander | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Jun 20, 2024 | Clarke | 1–0 | Hertog | Round 2: Clarke, James - Hertog, Alexander | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jun 20, 2024 | Hertog | 0–1 | Okhai | Round 1: Hertog, Alexander - Okhai, Shabir | Benoni Defense: Knight's Tour Variation | |
| Apr 10, 2023 | Hertog | ½–½ | Estevez Fernandez | 3rd 4NCL Easter Congress: Open | Catalan Opening: Closed | |
| Apr 10, 2023 | Isik | 0–1 | Hertog | 3rd 4NCL Easter Congress: Open | Queen's Indian Defense: Riumin Variation | |
| Apr 9, 2023 | Hertog | ½–½ | Gardiner | 3rd 4NCL Easter Congress: Open | Queen's Gambit Accepted: Central Variation, McDonnell Defense | |
| Apr 9, 2023 | Ireland | ½–½ | Hertog | 3rd 4NCL Easter Congress: Open | Trompowsky Attack | |
| Apr 8, 2023 | Hertog | 0–1 | Walker | 3rd 4NCL Easter Congress: Open | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Apr 8, 2023 | Turner | 1–0 | Hertog | 3rd 4NCL Easter Congress: Open | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Feb 19, 2023 | Hertog | 1–0 | Osborne | The Cambridge International Open | Horwitz Defense | |
| Feb 18, 2023 | Hertog | ½–½ | Lazarevic | Cambridge International Open | Queen's Gambit Declined | |
| Feb 18, 2023 | Keerthi Kumar | 1–0 | Hertog | Cambridge International Open | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Feb 17, 2023 | Hertog | 0–1 | Pride | Cambridge International Open | Queen's Pawn Game | |
| Feb 17, 2023 | Sellen | 0–1 | Hertog | The Cambridge International Open | Bird Opening: Dutch Variation | |
| Feb 16, 2023 | Hertog | 0–1 | Miller | The Cambridge International Open | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Feb 16, 2023 | Walker | 0–1 | Hertog | The Cambridge International Open | Zukertort Opening: Tennison Gambit | |
| Feb 15, 2023 | Hertog | 0–1 | Hebden | Cambridge International Open | King's Indian Defense: Fianchetto Variation, Immediate Fianchetto | |
| Feb 15, 2023 | Kaushik | 1–0 | Hertog | Cambridge International Open | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |