| Dec 24, 2025 | Ayyappan | 1–0 | Zeltsan | Round 1: Ayyappan, Santhosh - Zeltsan, Joseph | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Dec 24, 2025 | Rozman | 1–0 | Ayyappan | Round 4: Rozman, Levy - Ayyappan, Santhosh | Queen's Pawn Game: Levitsky Attack | |
| Dec 24, 2025 | Ayyappan | ½–½ | Das | Round 3: Ayyappan, Santhosh - Das, Aditeya | Nimzo-Indian Defense: Classical Variation, Zurich Variation | |
| Dec 24, 2025 | Pressman | ½–½ | Ayyappan | Round 2: Pressman, Leif - Ayyappan, Santhosh | Italian Game: Giuoco Pianissimo, Canal Variation | |
| Dec 20, 2025 | Ayyappan | 0–1 | Lamaze | Round 4: Ayyappan, Santhosh - Lamaze, Simon | King's Indian Defense: Normal Variation | |
| Nov 16, 2025 | Marri | 1–0 | Ayyappan | Round 4: Marri, Anvith Reddy - Ayyappan, Santhosh | Ruy Lopez: Closed, Chigorin Defense, Panov System | |
| Nov 15, 2025 | George | 1–0 | Ayyappan | Round 2: George, Kevin - Ayyappan, Santhosh | Ruy Lopez: Morphy Defense | |
| Oct 5, 2025 | Rohde | 1–0 | Ayyappan | Round 5: Rohde, Michael - Ayyappan, Santhosh | Queen's Gambit Declined: Anti-Tartakower Variation | |
| Oct 5, 2025 | Ayyappan | ½–½ | Justin J Sarkar | Round 4: Ayyappan, Santhosh - Justin J Sarkar | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Oct 3, 2025 | Garcia | 0–1 | Ayyappan | Round 1: Garcia, Miguel - Ayyappan, Santhosh | Catalan Opening: Open Defense, Classical Line | |
| Oct 2, 2025 | Ayyappan | 0–1 | Brodsky | Round 2: Ayyappan, Santhosh - Brodsky, David | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Sep 7, 2025 | Shvarts | 0–1 | Ayyappan | Round 5: Shvarts, Tim - Ayyappan, Santhosh | Rapport-Jobava System | |
| Sep 7, 2025 | Ayyappan | 1–0 | Robert Li | Round 4: Ayyappan, Santhosh - Robert Li | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Sep 6, 2025 | Stearman | 1–0 | Ayyappan | Round 2: Stearman, Josiah - Ayyappan, Santhosh | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jul 2, 2025 | Yang | ½–½ | Ayyappan | Game 2: Yang, Lanqin - Ayyappan, Santhosh | Ruy Lopez: Closed, Chigorin Defense | |
| Jul 1, 2025 | Ayyappan | 0–1 | Yang | Game 1: Ayyappan, Santhosh - Yang, Lanqin | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jun 29, 2025 | Sawhney | 0–1 | Ayyappan | Round 7: Sawhney, Yuvraj Singh - Ayyappan, Santhosh | Italian Game: Classical Variation, Greco Gambit | |
| Jun 28, 2025 | Ayyappan | 0–1 | Kolodziejczyk | Round 6: Ayyappan, Santhosh - Kolodziejczyk, Boris | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Jun 27, 2025 | Ayyappan | 0–1 | Bulgak | Round 5: Ayyappan, Santhosh - Bulgak, Damir | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Jun 26, 2025 | Daniel Ajish | 0–1 | Ayyappan | Round 4: Daniel Ajish - Ayyappan, Santhosh | Italian Game: Classical Variation, Greco Gambit | |
| Jun 25, 2025 | Shem Ngugi | 0–1 | Ayyappan | Round 3: Shem Ngugi - Ayyappan, Santhosh | Vienna Game: Vienna Gambit | |
| Jun 24, 2025 | Ayyappan | 0–1 | Paarshva Parmar | Round 2: Ayyappan, Santhosh - Paarshva Parmar | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Jun 23, 2025 | Sugraliyev | 0–1 | Ayyappan | Round 1: Sugraliyev, Akhmediyar - Ayyappan, Santhosh | Nimzo-Larsen Attack: Classical Variation | |
| May 21, 2025 | Bonin | 1–0 | Ayyappan | Round 4: Bonin, Jay - Ayyappan, Santhosh | Queen's Pawn Game | |
| May 21, 2025 | Ayyappan | 1–0 | Abdullayev | Round 3: Ayyappan, Santhosh - Abdullayev, Shami | Modern Defense: Standard Defense | |
| May 20, 2025 | Ayyappan | 0–1 | Meshkovs | Round 1: Ayyappan, Santhosh - Meshkovs, Nikita | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| May 4, 2025 | Schaefer | 1–0 | Ayyappan | Round 4: Schaefer, Sasha Milo - Ayyappan, Santhosh | Queen's Gambit Accepted: Normal Variation, Traditional System | |
| May 4, 2025 | Gartenlaub | 0–1 | Ayyappan | Round 5: Gartenlaub, Corin - Ayyappan, Santhosh | Scotch Game: Schmidt Variation | |
| May 3, 2025 | Ayyappan | 0–1 | Pressman | Round 2: Ayyappan, Santhosh - Pressman, Leif | Italian Game: Classical Variation, Greco Gambit | |
| May 3, 2025 | Ayyappan | 1–0 | Berg | Round 3: Ayyappan, Santhosh - Berg, George | Sicilian Defense: Najdorf Variation, English Attack | |
| May 2, 2025 | Yu | 0–1 | Ayyappan | Round 1: Yu, Vincent Zhiwen - Ayyappan, Santhosh | Scotch Game: Mieses Variation | |
| Apr 26, 2025 | Ayyappan | 1–0 | Ling | Round 5: Ayyappan, Santhosh - Ling, Chenxuan | French Defense: Winawer Variation, Poisoned Pawn Variation, Main Line | |
| Apr 26, 2025 | Ayyappan | 1–0 | Lu | Round 4: Ayyappan, Santhosh - Lu, Lucas | Sicilian Defense: O'Kelly Variation, Normal System | |
| Apr 26, 2025 | Ma | 0–1 | Ayyappan | Round 3: Ma, Julian - Ayyappan, Santhosh | Italian Game: Giuoco Pianissimo, Canal Variation | |
| Apr 26, 2025 | Weingarten | 1–0 | Ayyappan | Round 2: Weingarten, Phineas - Ayyappan, Santhosh | Ruy Lopez: Exchange Variation, Keres Variation | |
| Apr 26, 2025 | Ayyappan | 1–0 | Sawyer Sarwar | Round 1: Ayyappan, Santhosh - Sawyer Sarwar | Italian Game: Classical Variation, Greco Gambit | |
| Mar 18, 2025 | Liam Henry Putnam | 1–0 | Ayyappan | Round 2: Liam Henry Putnam - Ayyappan, Santhosh | Semi-Slav Defense: Marshall Gambit, Main Line | |
| Mar 18, 2025 | Ling | 1–0 | Ayyappan | Round 4: Ling, Chenxuan - Ayyappan, Santhosh | Queen's Pawn Game: Accelerated London System | |
| Mar 9, 2025 | Ayyappan | 1–0 | Ray | Round 4: Ayyappan, Santhosh - Ray, Sarathi | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations | |
| Mar 9, 2025 | Chen | 0–1 | Ayyappan | Round 5: Chen, Derek Li - Ayyappan, Santhosh | Ruy Lopez: Closed, Chigorin Defense | |
| Mar 8, 2025 | Ayyappan | 1–0 | Zlotchevsky | Round 2: Ayyappan, Santhosh - Zlotchevsky, Nicole | Sicilian Defense: Kan Variation, Knight Variation | |
| Mar 8, 2025 | Shvarts | 1–0 | Ayyappan | Round 3: Shvarts, Tim - Ayyappan, Santhosh | Ruy Lopez: Closed, Chigorin Defense | |
| Jan 21, 2025 | Ayyappan | 0–1 | Dlugy | Round 1: Ayyappan, Santhosh - Dlugy, Maxim | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations | |
| Feb 18, 2025 | Ayyappan | 0–1 | Adewumi | Round 1: Ayyappan, Santhosh - Adewumi, Tanitoluwa | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Feb 18, 2025 | Ayyappan | 1–0 | Bonin | Round 4: Ayyappan, Santhosh - Bonin, Jay | Sicilian Defense: Bücker Variation | |
| Feb 18, 2025 | Ling | 0–1 | Ayyappan | Round 3: Ling, Chenxuan - Ayyappan, Santhosh | Queen's Pawn Game: Accelerated London System | |
| Jan 5, 2025 | Ayyappan | 0–1 | Bonin | Round 5: Ayyappan, Santhosh - Bonin, Jay | Caro-Kann Defense | |
| Jan 5, 2025 | Zhu | 0–1 | Ayyappan | Round 4: Zhu, Linxi - Ayyappan, Santhosh | Ruy Lopez: Closed | |
| Jan 4, 2025 | Ayyappan | ½–½ | Hoffman | Round 3: Ayyappan, Santhosh - Hoffman, Luc | Sicilian Defense: Nimzowitsch Variation, Closed Variation | |
| Jan 3, 2025 | Ayyappan | ½–½ | Wang | Round 1: Ayyappan, Santhosh - Wang, Connor Junda | Sicilian Defense: Kan Variation, Knight Variation | |
| Nov 1, 2024 | Ayyappan | ½–½ | Gartenlaub | Round 1: Ayyappan, Santhosh - Gartenlaub, Corin | Pirc Defense | |
| Oct 4, 2024 | Li | 1–0 | Ayyappan | Round 1: Li, Michael - Ayyappan, Santhosh | Scotch Game: Mieses Variation | |
| Sep 17, 2024 | Ayyappan | 0–1 | Tang | Round 1: Ayyappan, Santhosh - Tang, Andrew | Queen's Gambit Declined: Tartakower Defense, Makogonov Exchange Variation | |
| Sep 6, 2024 | Ayyappan | ½–½ | Schaefer | Round 1: Ayyappan, Santhosh - Schaefer, Sasha Milo | Queen's Pawn Game: Accelerated London System | |
| Aug 2, 2024 | Ayyappan | 1–0 | Brain | Round 1: Ayyappan, Santhosh - Brain, Logan | London System | |
| May 27, 2024 | Ling | 0–1 | Ayyappan | Round 9: Ling, Chenxuan - Ayyappan, Santhosh | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 26, 2024 | Ayyappan | ½–½ | Ismayilova | Round 8: Ayyappan, Santhosh - Ismayilova, Khanim | Queen's Gambit Declined: Tarrasch Defense | |
| May 26, 2024 | Garg | 1–0 | Ayyappan | Round 7: Garg, Priyansh - Ayyappan, Santhosh | Rapport-Jobava System | |
| May 25, 2024 | Ayyappan | ½–½ | Zhuang | Round 6: Ayyappan, Santhosh - Zhuang, Kyle | King's Indian Defense: Four Pawns Attack, Normal Attack | |
| May 25, 2024 | Shankar | 0–1 | Ayyappan | Round 5: Shankar, Pranav - Ayyappan, Santhosh | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 24, 2024 | Ayyappan | 0–1 | Su | Round 4: Ayyappan, Santhosh - Su, Jasmine Zhixin | Grünfeld Defense: Exchange Variation | |
| May 24, 2024 | Stremavicius | 1–0 | Ayyappan | Round 3: Stremavicius, Titas - Ayyappan, Santhosh | King's Indian Attack | |
| May 23, 2024 | Ayyappan | 1–0 | Soni | Round 2: Ayyappan, Santhosh - Soni, Arjun | Queen's Gambit Declined: Janowski Variation | |
| May 4, 2024 | Bortnyk | 1–0 | Ayyappan | Round 2: Bortnyk, Mykola - Ayyappan, Santhosh | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Apr 14, 2024 | Ayyappan | 1–0 | Kozower | Round 5: Ayyappan, Santhosh - Kozower, Ethan | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| Apr 14, 2024 | Li | ½–½ | Ayyappan | Round 4: Li, Michael - Ayyappan, Santhosh | Scotch Game: Mieses Variation | |
| Apr 13, 2024 | Ayyappan | 0–1 | Muthukumar | Round 3: Ayyappan, Santhosh - Muthukumar, Haari | Queen's Gambit Declined: Janowski Variation | |
| Apr 13, 2024 | Chen | 0–1 | Ayyappan | Round 2: Chen, Derek - Ayyappan, Santhosh | Ruy Lopez: Morphy Defense | |
| Apr 12, 2024 | Ayyappan | 1–0 | Bortnyk | Round 1: Ayyappan, Santhosh - Bortnyk, Mykola | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| Mar 1, 2024 | Bortnyk | 1–0 | Ayyappan | Round 1: Bortnyk, Mykola - Ayyappan, Santhosh | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Dec 12, 2024 | Ayyappan | 0–1 | Nicholas F Matta | Round 1: Ayyappan, Santhosh - Nicholas F Matta | Sicilian Defense: Nimzowitsch Variation, Closed Variation | |
| Dec 8, 2024 | Ayyappan | 1–0 | Rosenthal | Round 4: Ayyappan, Santhosh - Rosenthal, Max Manuel | Italian Game: Classical Variation, Greco Gambit | |
| Dec 8, 2024 | Ayyappan | 1–0 | Nkululeko | Round 5: Ayyappan, Santhosh - Nkululeko, Nkosi | Alekhine Defense: Exchange Variation | |
| Dec 6, 2024 | Sarkar | 1–0 | Ayyappan | Round 1: Sarkar, Justin - Ayyappan, Santhosh | Semi-Slav Defense: Chigorin Defense | |
| Nov 3, 2024 | Ayyappan | 1–0 | Stancil | Round 4: Ayyappan, Santhosh - Stancil, Kimani | Sicilian Defense: Taimanov Variation | |
| Nov 3, 2024 | Ayyappan | ½–½ | Kozower | Round 5: Ayyappan, Santhosh - Kozower, Ethan | Sicilian Defense: Four Knights Variation | |
| Nov 2, 2024 | Yang | 0–1 | Ayyappan | Round 2: Yang, Lucas - Ayyappan, Santhosh | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Nov 2, 2024 | Zhu | 1–0 | Ayyappan | Round 3: Zhu, Linxi - Ayyappan, Santhosh | Ruy Lopez: Closed | |
| Oct 6, 2024 | Ling | ½–½ | Ayyappan | Round 4: Ling, Chenxuan - Ayyappan, Santhosh | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Oct 6, 2024 | Shangin | ½–½ | Ayyappan | Round 5: Shangin, Lev - Ayyappan, Santhosh | Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense | |
| Oct 5, 2024 | Ayyappan | 1–0 | Yue | Round 3: Ayyappan, Santhosh - Yue, Tariq | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 3, 2024 | Lin | 1–0 | Ayyappan | Round 3: Lin, Bryan Enming - Ayyappan, Santhosh | Nimzowitsch Defense: Breyer Variation | |
| Mar 31, 2024 | Weeramantry | 1–0 | Ayyappan | 16 Annual Open at Foxwoods | Italian Game: Classical Variation, Greco Gambit | |
| Mar 29, 2024 | Ayyappan | * | Times | 16 Annual Open at Foxwoods | Benoni Defense: Fianchetto Variation | |
| Mar 28, 2024 | Rogers | 1–0 | Ayyappan | 16 Annual Open at Foxwoods | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| Mar 27, 2024 | Ayyappan | * | Aadit Bhatia | 16 Annual Open at Foxwoods | ? | |
| Jun 20, 2022 | Ayyappan | 0–1 | Priyankara | 13th Chennai Open | ? | |
| Jun 20, 2022 | Mahish S A | * | Ayyappan | 13th Chennai Open | ? | |
| Jun 19, 2022 | Nishaanth Vidyasagar | 0–1 | Ayyappan | 13th Chennai Open | ? | |