CChessStats

2025 July Cornerstone Chess Norm Invitational - GM

Round-RobinStandard

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.

Location
🇺🇸San Jose, CA, United States
Dates
16 Jul 2025 → 20 Jul 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Round-robin · 9 rounds
Top seed
🇳🇱GMRobby Kevlishvili2549
Avg top 10
2,395
Participants
10
Titled players · 10
GM×3
IM×3
FM×4
Federations · 5 represented
🇺🇸United States of America×6
🇲🇳Mongolia×1
🇳🇱Netherlands×1
🇺🇦Ukraine×1
🇦🇲Armenia×1
Top 3

How it unfolded

Top 10 · 9 rounds

GM Mark Heimann led from R8 onwards, the runner-up race stayed tight.

Co-leaders
4
3
1
1
3
3
2
1
1
#1#2#5#10R1R2R3R4R5R6R7R8R9Heimann takes lead
R8 · LEADER CHANGE20 Jul

GM Mark Heimann takes the sole lead (6.0/8).

R8 · HEAD-TO-HEAD · WINNER VS 2ND

GM Mark Heimann beat IM Robert Shlyakhtenko (White).

WIN STREAKS · 2 top finishers

IM Robert Shlyakhtenko 3 wins (R1–R3)IM Joseph Levine 4 wins (R6–R9)

Cross-table

#PlayerElo12345678910PtsSBBhΔ EloPerf
1🇺🇸GMHeimann, Mark2513*1½1½½1½1½6.528.7538.5+5.32548
2🇺🇸IMShlyakhtenko, Robert24420*½1½1½11½6.024.2539.0+9.02515
4🇳🇱GMKevlishvili, Robby2549½½*0½½1½115.521.2539.5-9.02458
3🇺🇸IMLevine, Joseph2388001*½011115.519.5039.5+11.02476
6🇺🇦GMMatviishen, Viktor2540½½½½*½01½15.019.5040.0-12.92422
5🇺🇸FMAmburgy, Ryan2338½0½1½*01½15.019.2540.0+24.82445
7🇲🇳IMTugstumur, Yesuntumur24160½0011*½115.018.0040.0+2.52436
8🇦🇲FMRostomyan, Mikayel2326½0½000½*½13.010.7542.0-12.22278
9🇺🇸FMGuo, Andrew22120000½½0½*12.57.5042.5+4.62250
10🇺🇸FMJiang, Lucas2228½½0000000*1.06.2544.0-29.02063

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets