| — | Scholz | 1–0 | Sivakumar | Grenke Open | Slav Defense | |
| Jun 14, 2025 | Sivakumar | 0–1 | Villiers | 2025 FIDE World Blitz Team Championship Pool B | Queen's Gambit Declined: Lasker Defense | |
| Jun 14, 2025 | Jumabayev | 1–0 | Sivakumar | 2025 FIDE World Blitz Team Championship Pool B | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| Jun 14, 2025 | Sivakumar | ½–½ | Steinberg | 2025 FIDE World Blitz Team Championship Pool B | Semi-Slav Defense: Quiet Variation | |
| Jun 14, 2025 | Vitiugov | ½–½ | Sivakumar | 2025 FIDE World Blitz Team Championship Pool B | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Jun 14, 2025 | Sivakumar | 1–0 | Dishman | 2025 FIDE World Blitz Team Championship Pool B | Slav Defense: Quiet Variation, Schallopp Defense | |
| Jun 11, 2025 | Sivakumar | 1–0 | Zlotnik | 2025 FIDE World Rapid Team Championschip matches 11-18 | Bogo-Indian Defense: Grünfeld Variation | |
| Jun 11, 2025 | Parker | ½–½ | Sivakumar | 2025 FIDE World Rapid Team Championship matches 19-26 | Queen's Gambit Declined | |
| Jun 11, 2025 | Sivakumar | 0–1 | Wanyama | 2025 FIDE World Rapid Team Championship matches 19-26 | Torre Attack: Fianchetto Defense | |
| Jun 11, 2025 | Sivakumar | 0–1 | Short | 2025 FIDE World Rapid Team Championschip matches 11-18 | Marienbad System | |
| Feb 23, 2025 | Sivakumar | 1–0 | Nyberg | British Universities Chess Association Championship 2025 | Grünfeld Defense: Flohr Variation | |
| Feb 23, 2025 | Sim | 0–1 | Sivakumar | British Universities Chess Association Championship 2025 | Four Knights Game: Gunsberg Variation | |
| Feb 22, 2025 | Sivakumar | 0–1 | Petr | British Universities Chess Association Championship 2025 | Queen's Gambit Declined: Albin Countergambit, Normal Line | |
| Feb 22, 2025 | Sivakumar | * | Muhunthan | British Universities Chess Association Championship 2025 | King's Indian Defense: Orthodox Variation, Bayonet Attack, Sokolov's Line | |
| Feb 22, 2025 | Sivakumar | 1–0 | Austin | British Universities Chess Association Blitz 2025 | Indian Defense: Normal Variation | |
| Feb 22, 2025 | Sivakumar | 1–0 | Hedger | British Universities Chess Association Blitz 2025 | Semi-Slav Defense: Accelerated Move Order | |
| Feb 22, 2025 | Sivakumar | 1–0 | Balaji | British Universities Chess Association Blitz 2025 | Indian Defense: Wade-Tartakower Defense | |
| Feb 22, 2025 | Sivakumar | 0–1 | Schweizer | British Universities Chess Association Blitz 2025 | Bogo-Indian Defense: Grünfeld Variation | |
| Feb 22, 2025 | Obiamiwe | 0–1 | Sivakumar | British Universities Chess Association Championship 2025 | Ruy Lopez: Morphy Defense, Jaffe Gambit | |
| Feb 22, 2025 | Kirupakaran | 0–1 | Sivakumar | British Universities Chess Association Championship 2025 | Vienna Game: Vienna Gambit, Paulsen Attack | |
| Feb 22, 2025 | Minko | 0–1 | Sivakumar | British Universities Chess Association Championship 2025 | Scotch Game: Schmidt Variation | |
| Feb 22, 2025 | Goh | 1–0 | Sivakumar | British Universities Chess Association Blitz 2025 | Catalan Opening | |
| Feb 22, 2025 | Li | ½–½ | Sivakumar | British Universities Chess Association Blitz 2025 | Queen's Indian Defense: Kasparov-Petrosian Variation, Main Line | |
| Mar 31, 2024 | Bettalli | 1–0 | Sivakumar | Grenke Open | Slav Defense: Czech Variation, Dutch Variation | |
| Mar 2, 2024 | Sivakumar | 1–0 | Petr | Round 142: Sivakumar, Ashvin - Petr, Jan | Queen's Gambit Accepted: Furman Variation | |
| Apr 2, 2023 | Thorfinnsson | 1–0 | Sivakumar | Reykjavik Open 2023 | Torre Attack: Fianchetto Defense | |
| Mar 31, 2023 | Sivakumar | * | Carey | Reykjavik Open | ? | |
| Mar 29, 2023 | Papp | 1–0 | Sivakumar | Reykjavik Open 2023 | Ruy Lopez: Closed, Martinez Variation | |
| Nov 3, 2021 | Sivakumar | 1–0 | Kooh Peima | Asian Club Hybrid Chess Championships 2021 - Default | Torre Attack: Fianchetto Defense | |
| Nov 3, 2021 | Dadpour | 0–1 | Sivakumar | Asian Club Hybrid Chess Championships 2021 - Default | East Indian Defense | |
| Nov 3, 2021 | Randil | 0–1 | Sivakumar | Asian Club Hybrid Chess Championships 2021 - Default | Indian Defense: Wade-Tartakower Defense | |
| Nov 3, 2021 | Bahadori | 0–1 | Sivakumar | Asian Club Hybrid Chess Championships 2021 - Default | Indian Defense: Wade-Tartakower Defense | |
| — | Sivakumar | 1–0 | Saunders | British Universities Chess Association Blitz 2025 | Slav Defense | |
| — | Sivakumar | 1–0 | Whittington | British Universities Chess Association Championship 2025 | Queen's Gambit Declined | |
| — | Kusa | ½–½ | Sivakumar | Reykjavik Open 2023 | King's Indian Defense: Orthodox Variation, Positional Defense | |
| — | Mahajan | 0–1 | Sivakumar | British Universities Chess Association Blitz 2025 | Nimzo-Indian Defense: Classical Variation, Berlin Variation | |
| — | Lee | 0–1 | Sivakumar | British Universities Chess Association Blitz 2025 | King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Advance Line | |
| — | Asadli | 0–1 | Sivakumar | British Universities Chess Association Championship 2025 | Ruy Lopez: Closed | |
