60th American Open - Class A
Open SwissStandard
78 players participated in this 8-round tournament, held from 27 Nov 2025 to 30 Nov 2025 in Garden Grove, CA, United States. 5 federations represented. Top 10 Elo average was 1794, and top seed was Albert Ziatdinov (🇷🇺 RUS, 1876).
Owen Durby (🇺🇸 USA, 1840) won with 6.5/8, ahead of Anish Nalakonda (6.0) and Minh Nhat Nguyen (5.5). Durby clinched sole first place in the final round.
The biggest upset came in round 4: Garik Yegoryan (1480) beat Randall Hough (1808), a +328-point gap.
Location
🇺🇸Garden Grove, CA, United States
Dates
27 Nov 2025 → 30 Nov 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 8 rounds
Federations · 5 represented
🇺🇸United States of America×68
🇰🇷South Korea×3
🇯🇵Japan×2
🇷🇺Russia×2
🇦🇲Armenia×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 8 roundsOwen Durby led from R8; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R8.
Co-leaders
20
7
3
2
2
1
1
1
R8 · LEADER CHANGE30 Nov
Owen Durby takes the sole lead (6.5/8).
R6 · HEAD-TO-HEAD · WINNER VS 2ND
Owen Durby lost to Anish Nalakonda (White).
WIN STREAKS · 2 top finishers
Owen Durby 4 wins (R1–R4)Anish Nalakonda 4 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Owen Durby | * | 0 | — | 1 |
| 2Anish Nalakonda | 1 | * | — | 1 |
| 3Garik Yegoryan | — | — | * | — |
| 4Minh Nhat Nguyen | 0 | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Durby, Owen | 1840 | USA | +66N | +41B | +30N | +6B | =53N | −2B | +3N | +8B | 6.5 | 29.0 | 30.5 | 23.50 | 1894 | +16.4 |
| 2 | Nalakonda, Anish | 1704 | USA | +14B | +7N | +3B | +4N | =8B | +1N | =46B | −25N | 6.0 | 35.5 | 38.0 | 30.75 | 2110 | +101.6 |
| 3 | Nguyen, Minh Nhat | 1681 | USA | +15N | =28B | −2N | +41B | +27B | +16N | −1B | +38N | 5.5 | 30.0 | 32.5 | 18.50 | 1759 | +26.4 |
| 4 | Jargalsaikhan, Ochir | 1783 | USA | +43B | +40N | =16B | −2B | +13N | +68N | =53B | =47N | 5.5 | 24.0 | 25.5 | 15.25 | 1680 | -28.0 |
| 5 | Yegoryan, Garik | 1480 | USA | =33N | +20B | −31N | +45B | =9N | +30B | +56N | =34B | 5.5 | 23.0 | 25.0 | 16.50 | 1885 | +143.6 |
| 6 | Tjipto, Gavin | 1646 | USA | +62B | +13N | +17B | −1N | −25B | −19N | +23B | +18N | 5.0 | 30.0 | 32.0 | 18.00 | 1798 | +48.4 |
| 7 | Nishida, Eito | 1634 | JPN | +23N | −2B | +20N | =9B | =50N | =56B | =16B | +57N | 5.0 | 26.5 | 28.5 | 15.75 | 1819 | +79.6 |
| 8 | Lin, Xingchen | 1760 | USA | +67B | F | +28N | +16B | =2N | +53B | =25B | −1N | 5.0 | 26.5 | 26.5 | 15.25 | 1884 | +38.0 |
| 9 | Kwan, Wesley | 1652 | USA | −42B | +44N | +40B | =7N | =5B | =76N | =49B | +59N | 5.0 | 22.5 | 23.0 | 13.75 | 1475 | -48.0 |
| 10 | Alberhasky, Max | 0 | USA | =29N | F | −27B | +72N | +32B | +48B | =14N | +13B | 5.0 | 21.5 | 21.5 | 14.75 | 1754 | 0.0 |
| 11 | Stevens, Grant William | 1532 | USA | −28N | +15B | +18N | +42B | +47B | −46N | +64B | −53N | 5.0 | 21.0 | 23.0 | 15.50 | 1688 | +42.8 |
| 12 | Rivera, Louie G | 1537 | USA | F | =27N | +29B | +24N | F | =34B | +17N | +46N | 5.0 | 19.0 | 19.0 | 16.00 | 2395 | +46.4 |
| 13 | Huang, Si Hao | 1653 | USA | +35N | −6B | =14N | +28B | −4B | +63N | +76B | −10N | 4.5 | 28.0 | 28.5 | 10.75 | 1739 | +33.6 |
| 14 | Miller, Theodore | 1556 | USA | −2N | +21N | =13B | +22B | =56N | +57B | =10B | −48N | 4.5 | 27.0 | 29.0 | 14.75 | 1745 | +56.8 |
| 15 | Yang, Haoran | 0 | USA | −3B | −11N | =77B | +54N | +20N | +55B | +60B | F | 4.5 | 20.5 | 20.5 | 9.75 | 1623 | 0.0 |
| 16 | Zhang, Miller | 1766 | USA | +58B | +31B | =4N | −8N | +49B | −3B | =7N | −50N | 4.0 | 29.0 | 31.0 | 12.75 | 1635 | -49.6 |
| 17 | Klein, Robert S | 1624 | USA | +18N | +63B | −6N | +32B | +76B | −25N | −12B | −49N | 4.0 | 25.0 | 25.5 | 9.50 | 1650 | +10.8 |
| 18 | Choe, Matthew Hajoon | 1680 | KOR | −17B | +77N | −11B | +21N | +73B | +22N | −47B | −6B | 4.0 | 24.5 | 25.0 | 8.50 | 1487 | -60.8 |
| 19 | Ma, Matthew | 1528 | USA | =20N | +33B | +22N | −31B | =30N | +6B | −34N | F | 4.0 | 24.0 | 24.0 | 14.75 | 1817 | +91.2 |
| 20 | Ye, Brian | 1715 | USA | =19B | −5N | −7B | +35N | −15B | +44N | =29N | =21B | 3.5 | 28.5 | 31.0 | 10.75 | 1478 | -50.8 |
| 21 | Kuang, Terence | 0 | USA | −31N | −14B | +44N | −18B | −51B | +40N | +32B | =20N | 3.5 | 23.0 | 25.5 | 9.75 | 1522 | 0.0 |
| 22 | Yang, Emma | 1670 | USA | +44B | =42N | −19B | −14N | +59N | −18B | +41N | −68B | 3.5 | 22.0 | 23.5 | 8.25 | 1426 | -65.2 |
| 23 | Punnam, Srinidhi | 1718 | USA | −7B | =67N | =36B | +40N | =71N | =37B | −6N | =61B | 3.5 | 22.0 | 23.5 | 8.00 | 1524 | -63.2 |
| 24 | Lu, Ryan | 1566 | USA | =55N | +36B | =42N | −12B | −57N | =51B | =27N | =29B | 3.5 | 21.0 | 23.0 | 9.50 | 1558 | -3.2 |
| 25 | Bitoon, Jarl Reyhan Lee | 0 | USA | F | F | F | F | +6N | +17B | =8N | +2B | 3.5 | 20.0 | 20.0 | 17.50 | 1743 | 0.0 |
| 26 | Warhula, Joseph E | 1746 | USA | −40B | =72N | =43B | =29N | =61N | +36B | −48N | =27B | 3.5 | 18.5 | 19.5 | 8.75 | 1738 | -1.2 |
| 27 | Wei, Stanley | 0 | USA | F | =12B | +10N | =30B | −3N | −38N | =24B | =26N | 3.0 | 28.5 | 28.5 | 12.50 | 1522 | 0.0 |
| 28 | Nishtala, Vasisht | 1603 | USA | +11B | =3N | −8B | −13N | −38B | =70N | +54B | −65N | 3.0 | 27.0 | 28.5 | 10.50 | 1471 | -40.4 |
| 29 | Park, Lucas | 0 | USA | =10B | F | −12N | =26B | +69N | −60N | =20B | =24N | 3.0 | 24.0 | 24.0 | 9.25 | 1553 | 0.0 |
| 30 | Abadesco, Jon Cristoff | 1638 | USA | +72B | +37N | −1B | =27N | =19B | −5N | F | F | 3.0 | 23.0 | 23.0 | 7.50 | 1633 | -1.6 |
| 31 | Tiedemann, Daniel | 1793 | USA | +21B | −16N | +5B | +19N | −46B | −64N | F | F | 3.0 | 21.5 | 21.5 | 13.00 | 1717 | -4.2 |
| 32 | Khurana, Viyaan | 1618 | USA | −75B | +54N | +45B | −17N | −10N | −39B | −21N | +74B | 3.0 | 21.0 | 22.0 | 5.50 | 1522 | -19.2 |
| 33 | Zhang, Matthew | 1694 | USA | =5B | −19N | =72B | +36N | +42B | −47N | −50B | F | 3.0 | 21.0 | 21.0 | 8.75 | 1548 | -55.2 |
| 34 | Potukuchi, Siddhartha V | 0 | USA | F | F | F | F | +37B | =12N | +19B | =5N | 3.0 | 17.5 | 17.5 | 12.25 | 1590 | 0.0 |
| 35 | Chan, Max | 1617 | USA | −13B | =43N | F | −20B | +72N | +66B | =39N | −71B | 3.0 | 17.5 | 17.5 | 5.25 | 1529 | -23.2 |
| 36 | Janapareddy, Sreshtha | 1673 | USA | =78B | −24N | =23N | −33B | +74N | −26N | =70B | =73B | 3.0 | 17.0 | 17.5 | 4.25 | 1453 | -54.4 |
| 37 | Pang, Elena Hingyip | 1653 | USA | +54B | −30B | =41N | +66B | −34N | =23N | F | F | 3.0 | 15.5 | 15.5 | 6.50 | 1523 | -20.8 |
| 38 | Wolfe, Daniel | 1710 | USA | F | F | F | F | +28N | +27B | +68N | −3B | 3.0 | 13.0 | 13.0 | 7.50 | 1643 | -3.6 |
| 39 | Torousian, Emin | 1677 | USA | F | F | F | F | =43B | +32N | =35B | +76N | 3.0 | 9.0 | 9.0 | 6.25 | 1893 | +30.8 |
| 40 | Long, Ethan | 0 | USA | +26N | −4B | −9N | −23B | −45N | −21B | +55N | =54B | 2.5 | 25.5 | 27.5 | 6.50 | 1599 | 0.0 |
| 41 | Gu, Thomas | 1577 | USA | +45B | −1N | =37B | −3N | −60B | +67N | −22B | F | 2.5 | 25.5 | 27.0 | 5.50 | 1652 | +17.6 |
| 42 | Guan, Marcus | 1519 | USA | +9N | =22B | =24B | −11N | −33N | =65B | F | F | 2.5 | 22.0 | 22.0 | 9.50 | 1570 | +12.8 |
| 43 | Dani, Ariana E | 0 | USA | −4N | =35B | =26N | =55B | =39N | −59B | =73N | F | 2.5 | 21.5 | 22.5 | 6.25 | 1620 | 0.0 |
| 44 | Kwan, Charmaine | 0 | USA | −22N | −9B | −21B | =58N | F | −20B | +66N | +45N | 2.5 | 21.5 | 21.5 | 5.00 | 1518 | 0.0 |
| 45 | Hough, Randall | 1808 | USA | −41N | +55B | −32N | −5N | +40B | =61B | −59N | −44B | 2.5 | 20.0 | 22.0 | 5.50 | 1387 | -42.6 |
| 46 | Jura, Sean | 0 | USA | F | F | F | F | +31N | +11B | =2N | −12B | 2.5 | 19.0 | 19.0 | 11.00 | 1661 | 0.0 |
| 47 | Lien, Isaac | 1645 | USA | F | F | F | F | −11N | +33B | +18N | =4B | 2.5 | 17.5 | 17.5 | 9.75 | 1767 | +26.0 |
| 48 | Ziatdinov, Albert | 1876 | RUS | F | F | F | F | =68B | −10N | +26B | +14B | 2.5 | 14.5 | 14.5 | 8.75 | 2452 | +18.0 |
| 49 | Wang, Albert Hao | 1471 | USA | F | F | F | F | −16N | +73B | =9N | +17B | 2.5 | 14.0 | 14.0 | 7.50 | 1681 | +31.6 |
| 50 | Scamehorn, Jackson | 1672 | USA | F | F | F | F | =7B | F | +33N | +16B | 2.5 | 12.0 | 12.0 | 9.50 | 1972 | +44.4 |
| 51 | Li, Jaden | 0 | USA | F | F | F | F | +21N | =24N | +69B | F | 2.5 | 8.5 | 8.5 | 6.75 | 1566 | 0.0 |
| 52 | Li, Aaron | 0 | USA | F | F | F | F | +54B | =74N | +67B | F | 2.5 | 4.5 | 4.5 | 4.00 | 1622 | 0.0 |
| 53 | Galstyan, David G | 1631 | RUS | F | F | F | F | =1B | −8N | =4N | +11B | 2.0 | 22.0 | 22.0 | 11.00 | 1729 | +20.0 |
| 54 | Uchiyama, Hiro | 0 | JPN | −37N | −32B | =55N | −15B | −52N | +72B | −28N | =40N | 2.0 | 20.5 | 21.5 | 3.25 | 1486 | 0.0 |
| 55 | Guan, Renee Jiayi | 1635 | USA | =24B | −45N | =54B | =43N | F | −15N | −40B | =69N | 2.0 | 19.0 | 19.0 | 4.75 | 1494 | -14.8 |
| 56 | Ograin, Arjun | 1789 | USA | F | F | F | F | =14B | =7N | −5B | +60N | 2.0 | 17.0 | 17.0 | 6.75 | 1432 | -54.4 |
| 57 | Oldham, David Cody | 1778 | USA | F | F | F | F | +24B | −14N | +62N | −7B | 2.0 | 15.0 | 15.0 | 5.50 | 1461 | -24.8 |
| 58 | FIDE 13329731 | 0 | — | −16N | =66B | −62N | =44B | =70B | −69N | =74B | F | 2.0 | 14.0 | 14.0 | 3.25 | 968 | 0.0 |
| 59 | Gopi, Sahishnu | 0 | USA | F | F | F | F | −22B | +43N | +45B | −9B | 2.0 | 13.5 | 13.5 | 5.00 | 1585 | +0.8 |
| 60 | Nunez, Ryuta Watanabe | 0 | USA | F | F | F | F | +41N | +29B | −15N | −56B | 2.0 | 12.0 | 12.0 | 5.50 | 1690 | 0.0 |
| 61 | Choi, Youngjun | 0 | KOR | F | F | F | F | =26B | =45N | =65B | =23N | 2.0 | 11.5 | 11.5 | 5.75 | 1730 | 0.0 |
| 62 | Greitan, Wade | 0 | USA | −6N | F | +58B | F | +67N | F | −57B | F | 2.0 | 10.5 | 10.5 | 3.50 | 1551 | 0.0 |
| 63 | Adkins, Rico | 1623 | USA | +77B | −17N | F | F | +66N | −13B | F | F | 2.0 | 10.5 | 10.5 | 2.00 | 1485 | -11.2 |
| 64 | Baker, Steven | 0 | USA | F | F | F | F | +65N | +31B | −11N | F | 2.0 | 10.0 | 10.0 | 5.00 | 1678 | 0.0 |
| 65 | Pramod, Pranavi | 1648 | USA | F | F | F | F | −64B | =42N | =61N | +28B | 2.0 | 9.5 | 9.5 | 5.25 | 1758 | +10.8 |
| 66 | Porat, Oren | 0 | USA | −1B | =58N | +67B | −37N | −63B | −35N | −44B | F | 1.5 | 20.5 | 20.5 | 2.50 | 1427 | 0.0 |
| 67 | Pillai, Natesh | 1602 | USA | −8N | =23B | −66N | +77N | −62B | −41B | −52N | F | 1.5 | 17.5 | 17.5 | 2.25 | 1568 | -4.4 |
| 68 | Kong, Ryan D | 0 | USA | F | F | F | F | =48N | −4B | −38B | +22N | 1.5 | 14.5 | 14.5 | 4.75 | 1673 | 0.0 |
| 69 | Boyle, Gary | 0 | USA | F | F | F | F | −29B | +58B | −51N | =55B | 1.5 | 9.5 | 9.5 | 3.00 | 1635 | -2.0 |
| 70 | FIDE 566000122 | 0 | — | F | F | F | F | =58N | =28B | =36N | F | 1.5 | 8.0 | 8.0 | 4.00 | 1639 | 0.0 |
| 71 | Stern, Sebastian Jeffrey | 1686 | USA | F | F | F | F | =23B | F | F | +35N | 1.5 | 6.5 | 6.5 | 4.75 | 1861 | +9.2 |
| 72 | Wang, Aurora | 1666 | USA | −30N | =26B | =33N | −10B | −35B | −54N | F | F | 1.0 | 19.5 | 19.5 | 3.25 | 1481 | -38.4 |
| 73 | Zhang, Blake | 0 | USA | F | F | F | F | −18N | −49N | =43B | =36N | 1.0 | 12.0 | 12.0 | 2.75 | 1346 | -80.0 |
| 74 | Ni, Matthew | 0 | USA | F | F | F | F | −36B | =52B | =58N | −32N | 1.0 | 10.5 | 10.5 | 2.25 | 845 | 0.0 |
| 75 | Maokhampio, Lucas | 1749 | USA | +32N | F | F | F | F | F | F | F | 1.0 | 3.0 | 3.0 | 3.00 | 2417 | +12.8 |
| 76 | Kim, Ryan Joonwoo | 1627 | KOR | F | F | F | F | −17N | =9B | −13N | −39B | 0.5 | 16.5 | 16.5 | 2.50 | 1330 | -54.4 |
| 77 | Avagyan, David | 1555 | ARM | −63N | −18B | =15N | −67B | F | F | F | F | 0.5 | 12.0 | 12.0 | 2.25 | 834 | -46.4 |
| 78 | Vitko, Lucca | 1743 | USA | =36N | F | F | F | F | F | F | F | 0.5 | 3.0 | 3.0 | 1.50 | 1673 | -4.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Yegoryan, GarikUSA+143.65.5 pts · #4
- 2Nalakonda, AnishUSA+101.66.0 pts · #2
- 3Ma, MatthewUSA+91.24.0 pts · #9
Top rating losers
- 1Zhang, BlakeUSA-80.01.0 pts · #75
- 2Yang, EmmaUSA-65.23.5 pts · #52
- 3Punnam, SrinidhiUSA-63.23.5 pts · #35
Biggest upsets
- R4+328 Elo gap
- R7+309 Elo gap
- R2+235 Elo gap