| Jun 1, 2026 | Sethuramalingam | 0–1 | Park-Tamati | 48th Trusts Open 2026 | Bogo-Indian Defense: Grünfeld Variation | |
| Jun 1, 2026 | Wang | 1–0 | Sethuramalingam | 48th Trusts Open 2026 | Sicilian Defense: Closed | |
| May 31, 2026 | Sethuramalingam | 0–1 | Huang | 48th Trusts Open 2026 | Neo-Grünfeld Defense: Classical Variation, Original Defense | |
| May 31, 2026 | Sole | 0–1 | Sethuramalingam | 48th Trusts Open 2026 | Queen's Gambit Declined: Ragozin Defense, Alekhine Variation | |
| May 30, 2026 | Sethuramalingam | 1–0 | Liu | 48th Trusts Open 2026 | Queen's Indian Accelerated | |
| May 29, 2026 | Keith | 1–0 | Sethuramalingam | 48th Trusts Open 2026 | Queen's Gambit Declined: Ragozin Defense | |
| May 23, 2026 | Sethuramalingam | 1–0 | Qu | 2026 Kapiti Rapid | Queen's Gambit Declined | |
| May 23, 2026 | Turner | 1–0 | Sethuramalingam | 2026 Kapiti Rapid | English Opening: King's English Variation | |
| May 23, 2026 | Sethuramalingam | 1–0 | Holman | 2026 Kapiti Rapid | Slav Defense: Modern Line | |
| May 23, 2026 | Heta | 0–1 | Sethuramalingam | 2026 Kapiti Rapid | Sicilian Defense: Old Sicilian | |
| May 23, 2026 | Sethuramalingam | ½–½ | Ker | 2026 Kapiti Rapid | Catalan Opening | |
| May 23, 2026 | Panth | 0–1 | Sethuramalingam | 2026 Kapiti Rapid | King's Indian Attack, with e6 | |
| Apr 9, 2026 | Sethuramalingam | 0–1 | Nguyen | Open (U12- U20) | Indian Defense: Anti-Nimzo-Indian | |
| Apr 6, 2026 | Sethuramalingam | 0–1 | Croad | 2026 Wellington Easter Open | King's Indian Defense: Semi-Averbakh System | |
| Apr 5, 2026 | Rains | 0–1 | Sethuramalingam | 2026 Wellington Easter Open | Sicilian Defense: Closed | |
| Apr 4, 2026 | Sethuramalingam | ½–½ | Loke | 2026 Wellington Easter Open | Catalan Opening: Closed | |
| Apr 3, 2026 | Miriyala | 0–1 | Sethuramalingam | 2026 Wellington Easter Open | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Apr 3, 2026 | Wang | ½–½ | Sethuramalingam | 2026 Wellington Easter Open | Sicilian Defense: Closed | |
| Oct 26, 2025 | Sethuramalingam | 1–0 | Harris | Round 5: Sethuramalingam, Karthik - Harris, Adam | King's Indian Defense: Semi-Averbakh System | |
| Oct 25, 2025 | Archer | 1–0 | Sethuramalingam | Round 2: Archer, Ollie - Sethuramalingam, Karthik | Queen's Gambit Declined: Queen's Knight Variation | |
| Jun 21, 2025 | Sethuramalingam | 1–0 | Yang | Round 4: Sethuramalingam, Karthik - Yang, Edison J | Dutch Defense: Rubinstein Variation | |
| Jun 21, 2025 | Sethuramalingam | 1–0 | Ravi | Round 6: Sethuramalingam, Karthik - Ravi, Vrajesh | Queen's Pawn Game: Chigorin Variation | |
| Jun 21, 2025 | Van Der Hoorn | 1–0 | Sethuramalingam | Round 5: Van Der Hoorn, Thomas - Sethuramalingam, Karthik | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jun 21, 2025 | Anthony Kerr | 1–0 | Sethuramalingam | Round 3: Anthony Kerr - Sethuramalingam, Karthik | Scotch Game: Scotch Gambit, Advance Variation | |
| May 31, 2025 | Sethuramalingam | 0–1 | Wilson | Round 2: Sethuramalingam, Karthik - Wilson, Dion A | Catalan Opening | |
| May 30, 2025 | Sethuramalingam | 0–1 | Zhang | Round 1: Sethuramalingam, Karthik - Zhang, Kendrick Botong | Catalan Opening | |
| Apr 21, 2025 | Chen | ½–½ | Sethuramalingam | Round 6: Chen, Wei Kai - Sethuramalingam, Karthik | Nimzo-Larsen Attack: Modern Variation | |
| Apr 19, 2025 | Baker | 1–0 | Sethuramalingam | Round 4: Baker, Ilias Angelo (Leo) - Sethuramalingam, Karthik | Catalan Opening: Closed | |
| Apr 18, 2025 | Dive | ½–½ | Sethuramalingam | Round 2: Dive, Russell John - Sethuramalingam, Karthik | Catalan Opening: Open Defense, Classical Line | |
| Jan 10, 2025 | Ker | 1–0 | Sethuramalingam | New Zealand Chess Congress 2025 | Sicilian Defense: Closed | |
| Jan 9, 2025 | Sethuramalingam | ½–½ | Weng | New Zealand Chess Congress 2025 | Rapport-Jobava System | |
| Jan 8, 2025 | Sethuramalingam | 1–0 | Forster | New Zealand Chess Congress 2025 | King's Indian Defense: Normal Variation, Standard Development | |
| Jan 7, 2025 | Gan | ½–½ | Sethuramalingam | New Zealand Chess Congress 2025 | Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange Variation | |
| Jan 6, 2025 | Sethuramalingam | ½–½ | Wilson | New Zealand Chess Congress 2025 | King's Indian Defense: Semi-Averbakh System | |
| Jan 2, 2025 | Sethuramalingam | 0–1 | McLaren | New Zealand Chess Congress 2025 | Catalan Opening: Closed | |
| Nov 15, 2024 | Timergazi | 1–0 | Sethuramalingam | Round 2: Timergazi, Layla - Sethuramalingam, Karthik | Queen's Gambit Declined: Queen's Knight Variation | |
| Nov 16, 2024 | Nicholls | 0–1 | Sethuramalingam | Round 6: Nicholls, Leighton - Sethuramalingam, Karthik | Polish Opening | |
| — | Sethuramalingam | 0–1 | Sapartileuov | FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025 | King's Indian Defense: Semi-Averbakh System | |
| — | Sethuramalingam | 0–1 | Aitmukhanov | FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025 | Catalan Opening: Open Defense, Classical Line | |
| — | Sethuramalingam | 0–1 | Ozkaynakci | FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025 | Slav Defense: Modern Line | |
| — | Sethuramalingam | 1–0 | Gvirtz | FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025 | King's Indian Defense: Normal Variation, Standard Development | |
| — | Sethuramalingam | 1–0 | Istratova | FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025 | Queen's Gambit Declined | |
| — | Sethuramalingam | 1–0 | Tuyenbayeva | FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025 | Slav Defense: Modern Line | |
| — | Nurgaliyeva | 1–0 | Sethuramalingam | FIDE WORLD SCHOOLS TEAM CHAMPIONSHIP 2025 | Four Knights Game: Gunsberg Variation | |