2025 July Cornerstone Chess Norm Invitational - GM
10 players participated in this 9-round tournament, held from 16 Jul 2025 to 20 Jul 2025 in San Jose, CA, United States. 10 titled players from 5 federations. Top 10 Elo average was 2395, and top seed was Robby Kevlishvili (🇳🇱 NED, GM, 2549).
Mark Heimann (🇺🇸 USA, GM, 2513) won with 6.5/9, ahead of Robert Shlyakhtenko (6.0) and Robby Kevlishvili (5.5). Heimann shared the lead from round 5 and won solo starting round 8.
The biggest upset came in round 7: Joseph Levine (IM, 2388) beat Robby Kevlishvili (GM, 2549), a +161-point gap.
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How it unfolded
Top 10 · 9 roundsGM Mark Heimann led from R8 onwards, the runner-up race stayed tight.
GM Mark Heimann takes the sole lead (6.0/8).
GM Mark Heimann beat IM Robert Shlyakhtenko (White).
IM Robert Shlyakhtenko 3 wins (R1–R3)IM Joseph Levine 4 wins (R6–R9)
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇺🇸GMHeimann, Mark | 2513 | * | 1 | ½ | 1 | ½ | ½ | 1 | ½ | 1 | ½ | 6.5 | 28.75 | 38.5 | +5.3 | 2548 |
| 2 | 🇺🇸IMShlyakhtenko, Robert | 2442 | 0 | * | ½ | 1 | ½ | 1 | ½ | 1 | 1 | ½ | 6.0 | 24.25 | 39.0 | +9.0 | 2515 |
| 4 | 🇳🇱GMKevlishvili, Robby | 2549 | ½ | ½ | * | 0 | ½ | ½ | 1 | ½ | 1 | 1 | 5.5 | 21.25 | 39.5 | -9.0 | 2458 |
| 3 | 🇺🇸IMLevine, Joseph | 2388 | 0 | 0 | 1 | * | ½ | 0 | 1 | 1 | 1 | 1 | 5.5 | 19.50 | 39.5 | +11.0 | 2476 |
| 6 | 🇺🇦GMMatviishen, Viktor | 2540 | ½ | ½ | ½ | ½ | * | ½ | 0 | 1 | ½ | 1 | 5.0 | 19.50 | 40.0 | -12.9 | 2422 |
| 5 | 🇺🇸FMAmburgy, Ryan | 2338 | ½ | 0 | ½ | 1 | ½ | * | 0 | 1 | ½ | 1 | 5.0 | 19.25 | 40.0 | +24.8 | 2445 |
| 7 | 🇲🇳IMTugstumur, Yesuntumur | 2416 | 0 | ½ | 0 | 0 | 1 | 1 | * | ½ | 1 | 1 | 5.0 | 18.00 | 40.0 | +2.5 | 2436 |
| 8 | 🇦🇲FMRostomyan, Mikayel | 2326 | ½ | 0 | ½ | 0 | 0 | 0 | ½ | * | ½ | 1 | 3.0 | 10.75 | 42.0 | -12.2 | 2278 |
| 9 | 🇺🇸FMGuo, Andrew | 2212 | 0 | 0 | 0 | 0 | ½ | ½ | 0 | ½ | * | 1 | 2.5 | 7.50 | 42.5 | +4.6 | 2250 |
| 10 | 🇺🇸FMJiang, Lucas | 2228 | ½ | ½ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | * | 1.0 | 6.25 | 44.0 | -29.0 | 2063 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Amburgy, RyanFMUSA+24.85.0 pts · #5
- 2Levine, JosephIMUSA+11.05.5 pts · #3
- 3Shlyakhtenko, RobertIMUSA+9.06.0 pts · #2
- 1Jiang, LucasFMUSA-29.01.0 pts · #10
- 2Matviishen, ViktorGMUKR-12.95.0 pts · #6
- 3Rostomyan, MikayelFMARM-12.23.0 pts · #8
- R7+161 Elo gap
- R4+124 Elo gap