| Jul 23, 2026 | Giahos | ½–½ | Kothari | Round 5: Giahos, Gerasimos - Kothari, Jai | Ruy Lopez: Morphy Defense, Duras Variation | |
| Jul 23, 2026 | Kolani | 1–0 | Giahos | Round 4: Kolani, Arjun - Giahos, Gerasimos | Italian Game: Classical Variation, Giuoco Pianissimo, with a5 | |
| Jul 22, 2026 | Giahos | 1–0 | Li | Round 3: Giahos, Gerasimos - Li, Harvey | Queen's Pawn Game: London System, with e6 | |
| Jul 22, 2026 | Gluckman | 1–0 | Giahos | Round 2: Gluckman, David - Giahos, Gerasimos | King's Indian Attack: Sicilian Variation | |
| Jul 21, 2026 | Liu | 0–1 | Giahos | Round 1: Liu, Jacob - Giahos, Gerasimos | ? | |
| Apr 19, 2026 | Jenkins | 0–1 | Giahos | 4th Sussex University Weekend Congress - Blitz | Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line | |
| Apr 19, 2026 | Pack | 0–1 | Giahos | 4th Sussex University Weekend Congress - Blitz | Rapport-Jobava System | |
| Apr 19, 2026 | Giahos | 1–0 | Delacour | 4th Sussex University Weekend Congress - Blitz | Trompowsky Attack | |
| Apr 19, 2026 | Scott | 1–0 | Giahos | 4th Sussex University Weekend Congress - Blitz | English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | |
| Apr 19, 2026 | Giahos | 0–1 | Hedger | 4th Sussex University Weekend Congress - Blitz | Sicilian Defense: French Variation | |
| Apr 19, 2026 | Giahos | 0–1 | Brewer | 4th Sussex University Weekend Congress - Blitz | Caro-Kann Defense: Advance Variation | |
| Apr 19, 2026 | Keohane | 0–1 | Giahos | 4th Sussex University Weekend Congress - Blitz | Rapport-Jobava System | |
| Apr 19, 2026 | Giahos | 1–0 | Idle | 4th Sussex University Weekend Congress - Blitz | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Apr 19, 2026 | Giahos | 1–0 | Payne | 4th Sussex University Weekend Congress - Congress Under 2400 | French Defense: Tarrasch Variation, Pawn Center Variation | |
| Apr 18, 2026 | Giahos | 1–0 | Leech | 4th Sussex University Weekend Congress - Congress Under 2400 | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Apr 18, 2026 | Rogers | 0–1 | Giahos | 4th Sussex University Weekend Congress - Congress Under 2400 | Four Knights Game | |
| Apr 12, 2026 | Giahos | 0–1 | Korshunov | 4th Sussex University Weekend Congress - Blitz | Sicilian Defense: O'Kelly Variation, Réti System | |
| Apr 12, 2026 | Yoon | 1–0 | Giahos | 4th Sussex University Weekend Congress - Congress Under 2400 | Italian Game: Classical Variation, Giuoco Pianissimo, with a5 | |
| Apr 12, 2026 | Buckley | 0–1 | Giahos | 4th Sussex University Weekend Congress - Congress Under 2400 | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Jan 5, 2024 | Giahos | 1–0 | Rayner | Caplin Hastings Masters 2023 | English Opening: King's English Variation | |
| Jan 4, 2024 | Teh | 0–1 | Giahos | Caplin Hastings Masters 2023 | Sicilian Defense: Moscow Variation | |
| Jan 3, 2024 | Giahos | ½–½ | Banerjee | Caplin Hastings Masters 2023 | Queen's Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line | |
| Jan 2, 2024 | Walker | ½–½ | Giahos | Caplin Hastings Masters 2023 | Sicilian Defense: Moscow Variation | |
| Jan 1, 2024 | Giahos | ½–½ | Honey | Caplin Hastings Masters 2023 | English Opening: King's English Variation | |
| Dec 31, 2023 | Giahos | 1–0 | Keely | Caplin Hastings Masters 2023 | Petrov's Defense: Modern Attack, Center Variation | |
| Dec 30, 2023 | Norinkeviciute | 1–0 | Giahos | Caplin Hastings Masters 2023 | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Dec 29, 2023 | Giahos | 0–1 | Hobson | Caplin Hastings Masters 2023 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Dec 28, 2023 | Lahlum | ½–½ | Giahos | Caplin Hastings Masters 2023 | Queen's Gambit Declined: Semi-Tarrasch Defense | |
| — | Giahos | * | Hedger | Sussex University Open | ? | |
| — | Cove | 1–0 | Giahos | Sussex University Open | King's Indian Defense: Fianchetto Variation, Yugoslav System | |
| — | Eldridge | * | Giahos | Sussex University Open | ? | |