| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Z Fadli vs S Sumant |
 | 0-1 | 42 | 2007 | Selangor Open | A20 English |
| 2. S Sumant vs Edward Lee Kim Han |
| 1-0 | 21 | 2008 | Malaysian Juniors | B96 Sicilian, Najdorf |
| 3. R Vazquez Igarza vs S Sumant |
| 1-0 | 47 | 2014 | Tromso Olympiad | A15 English |
| 4. S Ouma vs S Sumant |
| 1-0 | 52 | 2014 | Tromso Olympiad | B23 Sicilian, Closed |
| 5. S Sumant vs Hamoud Al Nhier |
| 1-0 | 37 | 2014 | Tromso Olympiad | C25 Vienna |
| 6. S Sumant vs M Nitzborn |
| 1-0 | 42 | 2014 | Tromso Olympiad | D78 Neo-Grunfeld, 6.O-O c6 |
| 7. S Sumant vs V Babula Sr |
| ½-½ | 47 | 2016 | Baku Olympiad | A04 Reti Opening |
| 8. M Allam vs S Sumant |
| ½-½ | 46 | 2016 | Baku Olympiad | A34 English, Symmetrical |
| 9. S Sumant vs M Perez Gormaz |
| 1-0 | 34 | 2016 | Baku Olympiad | E15 Queen's Indian |
| 10. S Sumant vs R Guillermo Ulloa |
| 1-0 | 45 | 2016 | Baku Olympiad | A37 English, Symmetrical |
| 11. S Sumant vs Akar Ali Salih Salih |
| 0-1 | 48 | 2016 | Baku Olympiad | D78 Neo-Grunfeld, 6.O-O c6 |
| 12. Seng Tou Ip vs S Sumant |
| 0-1 | 33 | 2016 | Baku Olympiad | B01 Scandinavian |
| 13. W Lorenzana vs S Sumant |
| 0-1 | 70 | 2016 | Baku Olympiad | B01 Scandinavian |
| 14. Luis Miguel Aguilar vs S Sumant |
| 0-1 | 29 | 2016 | Baku Olympiad | A00 Uncommon Opening |
| 15. S Sumant vs M Ali |
| 0-1 | 40 | 2016 | Baku Olympiad | A04 Reti Opening |
| 16. S Sumant vs A Kassis |
| 0-1 | 30 | 2016 | Baku Olympiad | E62 King's Indian, Fianchetto |
| 17. S Sumant vs D Gukesh |
| ½-½ | 42 | 2017 | 1st Puchong Friday IM Oct | B96 Sicilian, Najdorf |
| 18. L Pasko vs S Sumant |
| 1-0 | 45 | 2020 | FIDE Online Olympiad | A60 Benoni Defense |
| 19. S Sumant vs S Kwon |
| 0-1 | 42 | 2020 | FIDE Online Olympiad | A06 Reti Opening |
| 20. S Sumant vs S Jessel |
| 1-0 | 57 | 2020 | FIDE Online Olympiad | A06 Reti Opening |
| 21. Y D Deng vs S Sumant |
| ½-½ | 62 | 2020 | FIDE Online Olympiad | A70 Benoni, Classical with 7.Nf3 |
| 22. I Efimov vs S Sumant |
| 0-1 | 86 | 2020 | FIDE Online Olympiad | A45 Queen's Pawn Game |
| 23. Sevian vs S Sumant |
| 1-0 | 33 | 2021 | World Cup | C70 Ruy Lopez |
| 24. S Sumant vs Sevian |
| 0-1 | 33 | 2021 | World Cup | E67 King's Indian, Fianchetto |
| 25. D Arenas vs S Sumant |
| 1-0 | 32 | 2022 | Chennai Olympiad | A15 English |
Kibitzing
