Quantbox Chennai Grand Masters 2025
10 players participated in this 9-round tournament, held from 07 Aug 2025 to 15 Aug 2025 in Chennai, India. 10 titled players from 4 federations. Top 10 Elo average was 2700, and top seed was Erigaisi Arjun (🇮🇳 IND, GM, 2776).
Vincent Keymer (🇩🇪 GER, GM, 2730) won with 7.0/9, ahead of Anish Giri (5.0) and Erigaisi Arjun (5.0). Keymer won solo starting round 2.
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How it unfolded
Top 10 · 9 roundsGM Vincent Keymer led from R2 onwards, the title was decided early.
GM Vincent Keymer never relinquished the lead after R2; final gap +2.0 over the runner-up.
GM Vincent Keymer opens a +1.5-point gap over the chasing pack (closest: GM Erigaisi Arjun); the title is out of reach before R9.
GM Vincent Keymer drew with GM Erigaisi Arjun (White).
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇩🇪GMKeymer, Vincent | 2730 | * | ½ | ½ | 1 | 1 | 1 | ½ | ½ | 1 | 1 | 7.0 | 29.00 | 38.0 | +20.9 | 2917 |
| 3 | 🇳🇱GMGiri, Anish | 2748 | ½ | * | ½ | ½ | ½ | ½ | ½ | 1 | ½ | ½ | 5.0 | 22.00 | 40.0 | -1.5 | 2738 |
| 2 | 🇮🇳GMErigaisi Arjun | 2776 | ½ | ½ | * | ½ | 0 | 1 | ½ | ½ | ½ | 1 | 5.0 | 21.50 | 40.0 | -5.3 | 2735 |
| 4 | 🇮🇳GMKarthikeyan, Murali | 2658 | 0 | ½ | ½ | * | ½ | ½ | 1 | 1 | ½ | ½ | 5.0 | 20.50 | 40.0 | +10.8 | 2748 |
| 6 | 🇮🇳GMNihal Sarin | 2692 | 0 | ½ | 1 | ½ | * | ½ | 0 | 0 | 1 | 1 | 4.5 | 18.25 | 40.5 | +1.2 | 2701 |
| 5 | 🇺🇸GMLiang, Awonder | 2696 | 0 | ½ | 0 | ½ | ½ | * | ½ | 1 | 1 | ½ | 4.5 | 17.75 | 40.5 | +0.5 | 2701 |
| 7 | 🇮🇳GMVidit, Santosh Gujrathi | 2720 | ½ | ½ | ½ | 0 | 1 | ½ | * | ½ | ½ | 0 | 4.0 | 18.75 | 41.0 | -7.8 | 2655 |
| 8 | 🇳🇱GMVan Foreest, Jorden | 2697 | ½ | 0 | ½ | 0 | 1 | 0 | ½ | * | ½ | 1 | 4.0 | 17.00 | 41.0 | -4.5 | 2657 |
| 9 | 🇮🇳GMPranav, V | 2597 | 0 | ½ | ½ | ½ | 0 | 0 | ½ | ½ | * | ½ | 3.0 | 13.00 | 42.0 | -1.1 | 2587 |
| 10 | 🇺🇸GMRobson, Ray | 2687 | 0 | ½ | 0 | ½ | 0 | ½ | 1 | 0 | ½ | * | 3.0 | 12.75 | 42.0 | -13.2 | 2577 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Keymer, VincentGMGER+20.97.0 pts · #1
- 2Karthikeyan, MuraliGMIND+10.85.0 pts · #4
- 3Nihal SarinGMIND+1.24.5 pts · #6
- 1Robson, RayGMUSA-13.23.0 pts · #10
- 2Vidit, Santosh GujrathiGMIND-7.84.0 pts · #7
- 3Erigaisi ArjunGMIND-5.35.0 pts · #2