2025 July Cornerstone Chess - Group 1
Round-RobinStandard
Location
🇺🇸Sunnyvale, CA, United States
Dates
19 Jul 2025 → 20 Jul 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Round-robin · 3 rounds
Titled players · 3
IM×1
FM×1
CM×1
Federations · 1 represented
🇺🇸United States of America×4
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 4 · 3 roundsIM Keaton Kiewra led from R1 onwards, the runner-up race stayed tight.
Co-leaders
1
1
1
R1–R3 · LEAD HELD
IM Keaton Kiewra never relinquished the lead after R1; final gap +1.0 over the runner-up.
R1 · HEAD-TO-HEAD · WINNER VS 2ND
IM Keaton Kiewra beat CM Jashith Karthi (White).
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇺🇸IMKiewra, Keaton | 2277 | * | 1 | ½ | 1 | 2.5 | 3.00 | 3.5 | +5.1 | 2431 |
| 2 | 🇺🇸CMKarthi, Jashith | 2113 | 0 | * | 1 | ½ | 1.5 | 1.50 | 4.5 | +16.4 | 2212 |
| 3 | 🇺🇸Zhou, Ruoyu | 2181 | ½ | 0 | * | ½ | 1.0 | 1.75 | 5.0 | -19.2 | 2064 |
| 4 | 🇺🇸FMYan, Nathan | 2178 | 0 | ½ | ½ | * | 1.0 | 1.25 | 5.0 | -8.8 | 2066 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Karthi, JashithCMUSA+16.41.5 pts · #2
- 2Kiewra, KeatonIMUSA+5.12.5 pts · #1
- 3Yan, NathanFMUSA-8.81.0 pts · #4
Top rating losers
- 1Zhou, RuoyuUSA-19.21.0 pts · #3
- 2Yan, NathanFMUSA-8.81.0 pts · #4
- 3Kiewra, KeatonIMUSA5.12.5 pts · #1