2025 Southern California Open - U2100
Open SwissStandard
36 players participated in this 6-round tournament, held from 29 Aug 2025 to 01 Sept 2025 in Glendale, CA, United States. 3 federations represented. Top 10 Elo average was 1824, and top seed was Rafeh Qazi (🇺🇸 USA, 1958).
Hayk Sardaryan (🇺🇸 USA, 0) won with 5.0/6, ahead of Seryozha Gasparyan (4.5) and Linus Nguyen Eisenberg (4.0). Sardaryan took the lead from round 5.
The biggest upset came in round 5: Andy Zhong (1592) beat Rafeh Qazi (1958), a +366-point gap.
Location
🇺🇸Glendale, CA, United States
Dates
29 Aug 2025 → 01 Sept 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Federations · 3 represented
🇺🇸United States of America×32
🇷🇺Russia×2
🇦🇲Armenia×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsHayk Sardaryan led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
Co-leaders
4
6
3
2
1
1
R5–R6 · LEAD HELD
Hayk Sardaryan held the sole lead from R5 through R6 without losing it.
R1 · HEAD-TO-HEAD · WINNER VS 2ND
Hayk Sardaryan lost to Seryozha Gasparyan (Black).
R2–R6 · WIN STREAK
Hayk Sardaryan won 5 in a row (R2–R6).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Hayk Sardaryan | * | 0 | 1 | — |
| 2Seryozha Gasparyan | 1 | * | ½ | 1 |
| 3Linus Nguyen Eisenberg | 0 | ½ | * | — |
| 4David G Galstyan | — | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Sardaryan, Hayk | 0 | USA | −2N | +20B | +7N | +21B | +3B | +8N | 5.0 | 16.5 | 18.5 | 14.00 | 1776 | 0.0 |
| 2 | Gasparyan, Seryozha | 1852 | USA | +1B | =3N | +33B | −8B | +4N | +5N | 4.5 | 19.5 | 20.0 | 15.00 | 1822 | -2.2 |
| 3 | Eisenberg, Linus Nguyen | 1713 | USA | +20N | =2B | +34N | +16B | −1N | =26B | 4.0 | 16.0 | 16.5 | 8.25 | 1961 | +52.0 |
| 4 | Galstyan, David G | 1531 | RUS | −5B | +11N | +10B | +33N | −2B | +28N | 4.0 | 15.5 | 16.0 | 8.00 | 1757 | +43.2 |
| 5 | Leung, Martin | 1880 | USA | +4N | =7B | +23B | +31N | −8N | −2B | 3.5 | 16.5 | 17.5 | 8.50 | 1809 | -15.2 |
| 6 | Andranigian, Rafi | 1720 | USA | =13B | −17N | +30N | +9B | =16N | =18B | 3.5 | 13.5 | 14.5 | 8.00 | 1823 | +16.0 |
| 7 | Bhamidipati, Suryatej | 0 | USA | +11N | =5N | −1B | −18B | =24N | +20B | 3.0 | 16.0 | 18.0 | 7.75 | 1736 | +4.8 |
| 8 | Simanovski, Davit | 1786 | ARM | F | F | +22B | +2N | +5B | −1B | 3.0 | 15.0 | 15.0 | 10.00 | 2666 | +48.8 |
| 9 | Abgaryan, Vahe | 0 | USA | =12B | +13N | −31B | −6N | =11N | +27B | 3.0 | 14.0 | 15.0 | 7.50 | 1658 | -59.2 |
| 10 | Torousian, Emin | 0 | USA | =30B | =12N | −4N | +27B | −18N | +24B | 3.0 | 13.0 | 14.0 | 5.50 | 1592 | -32.0 |
| 11 | Labaznikova, Kseniya | 1634 | RUS | −7B | −4B | =24N | +30N | =9B | +35N | 3.0 | 13.0 | 13.5 | 4.00 | 1736 | +16.0 |
| 12 | Jargalsaikhan, Ochir | 1762 | USA | =9N | =10B | =27N | +35B | =22N | −16B | 3.0 | 12.0 | 12.5 | 5.25 | 1693 | -11.2 |
| 13 | Tenenbaum, Misha | 0 | USA | =6N | −9B | =29N | −15B | +36N | +34B | 3.0 | 11.0 | 11.5 | 3.25 | 1729 | 0.0 |
| 14 | Bronshtein, Marc | 1764 | USA | F | F | +15B | =22N | =28N | +21B | 3.0 | 8.5 | 8.5 | 6.75 | 1971 | +29.2 |
| 15 | Lew, Evan Jet | 1839 | USA | F | F | −14N | +13N | +33B | +25N | 3.0 | 8.5 | 8.5 | 5.50 | 1718 | -12.8 |
| 16 | Ly, Terrence | 1748 | USA | F | F | +17B | −3N | =6B | +12N | 2.5 | 13.0 | 13.0 | 7.25 | 1732 | -2.8 |
| 17 | Teng, Benjamin | 0 | USA | =29N | +6B | −16N | F | =23B | =19N | 2.5 | 11.5 | 11.5 | 6.25 | 1754 | -24.4 |
| 18 | Yu, Kaiwen | 1694 | USA | F | F | −28B | +7N | +10B | =6N | 2.5 | 11.0 | 11.0 | 7.75 | 1499 | -20.0 |
| 19 | Qazi, Rafeh | 1958 | USA | F | F | +36N | +29B | −21N | =17B | 2.5 | 6.0 | 6.0 | 2.75 | 1637 | -14.6 |
| 20 | Lin, Abel J | 0 | USA | −3B | −1N | +?B | −25N | +29B | −7N | 2.0 | 15.0 | 15.0 | 1.00 | 1564 | 0.0 |
| 21 | Zhong, Andy | 1592 | USA | F | F | +25B | −1N | +19B | −14N | 2.0 | 12.5 | 12.5 | 4.50 | 1923 | +49.6 |
| 22 | Lien, Isaac | 0 | USA | F | F | −8N | =14B | =12B | +23N | 2.0 | 11.0 | 11.0 | 5.00 | 1744 | +26.4 |
| 23 | Srinivasan, Santhosh | 1664 | USA | F | +29B | −5N | =34B | =17N | −22B | 2.0 | 9.5 | 9.5 | 2.50 | 1746 | +13.2 |
| 24 | Mudrageda, Rohan | 0 | USA | F | F | =11B | +?N | =7B | −10N | 2.0 | 9.0 | 9.0 | 3.00 | 1634 | 0.0 |
| 25 | Scamehorn, Jackson | 1672 | USA | F | F | −21N | +20B | +34N | −15B | 2.0 | 7.5 | 7.5 | 2.50 | 1577 | -15.6 |
| 26 | Marzban, Brandon Ashkan | 1796 | USA | F | F | F | =32N | +31B | =3N | 2.0 | 6.0 | 6.0 | 3.50 | 1889 | +14.8 |
| 27 | Zoghlami, Amin | 1682 | USA | F | F | =12B | −10N | +30B | −9N | 1.5 | 10.0 | 10.0 | 2.50 | 1900 | +22.8 |
| 28 | Tjipto, Gavin | 1663 | USA | F | F | +18N | F | =14B | −4B | 1.5 | 9.5 | 9.5 | 4.00 | 1663 | 0.0 |
| 29 | Xu, Olivia | 1681 | USA | =17B | −23N | =13B | −19N | −20N | F | 1.0 | 12.0 | 12.0 | 2.75 | 1011 | -28.0 |
| 30 | Adkins, Rico | 1652 | USA | =10N | F | −6B | −11B | −27N | =36B | 1.0 | 11.5 | 11.5 | 1.75 | 879 | -27.6 |
| 31 | Delijani, Taja | 1852 | USA | F | F | +9N | −5B | −26N | F | 1.0 | 8.5 | 8.5 | 3.00 | 1038 | -41.6 |
| 32 | Cha, Justin | 1727 | USA | F | F | =35N | =26B | F | F | 1.0 | 2.5 | 2.5 | 1.25 | 1723 | -0.4 |
| 33 | Ju, Jason Jialong | 0 | USA | F | F | −2N | −4B | −15N | =?B | 0.5 | 11.5 | 11.5 | 0.00 | 940 | 0.0 |
| 34 | Pramod, Pranavi | 1675 | USA | F | F | −3B | =23N | −25B | −13N | 0.5 | 11.0 | 11.0 | 1.00 | 1410 | -38.8 |
| 35 | Xiao, Edira | 1650 | USA | F | F | =32B | −12N | F | −11B | 0.5 | 7.0 | 7.0 | 0.50 | 1435 | -30.4 |
| 36 | FIDE 39991733 | 0 | — | F | F | −19B | F | −13B | =30N | 0.5 | 6.5 | 6.5 | 0.50 | 1612 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Eisenberg, Linus NguyenUSA+52.04.0 pts · #1
- 2Zhong, AndyUSA+49.62.0 pts · #9
- 3Simanovski, DavitARM+48.83.0 pts · #14
Top rating losers
- 1Abgaryan, VaheUSA-59.23.0 pts · #10
- 2Delijani, TajaUSA-41.61.0 pts · #35
- 3Pramod, PranaviUSA-38.80.5 pts · #28
Biggest upsets
- R5+366 Elo gap
- R6+132 Elo gap
- R2+103 Elo gap