30th Annual Pacific Coast Open - U2100
Open SwissStandard
84 players participated in this 6-round tournament, held from 08 Aug 2025 to 10 Aug 2025 in Irvine, CA, United States. 1 titled players from 8 federations. Top 10 Elo average was 1882, and top seed was Alejandrino Baluran (🇺🇸 USA, 1947).
Pear Xu (🇺🇸 USA, 1640) won with 5.0/6, ahead of Jesus Angel Hurtado Diaz (4.5) and Sai Krishna (4.5). Xu shared the lead from round 5 and broke clear in the final round.
The biggest upset came in round 6: Sai Krishna (1607) beat Marius-Gabriel Lucan (1900), a +293-point gap.
Location
🇺🇸Irvine, CA, United States
Dates
08 Aug 2025 → 10 Aug 2025
Time control
Standard: 40 Moves in 80 Min. Del. 30 Sec. / / 30 Min. Del. 30 Sec.
System
Swiss · 6 rounds
Titled players · 1
WCM×1
Federations · 8 represented
🇺🇸United States of America×72
🇦🇲Armenia×2
🇷🇺Russia×2
🇨🇦Canada×1
🇹🇼Chinese Taipei×1
🇷🇴Romania×1
🇰🇷South Korea×1
🇲🇽Mexico×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsPear Xu led from R6; +0.5-point edge over the runner-up.
Co-leaders
19
9
2
1
4
1
R6 · LEADER CHANGE10 Aug
Pear Xu takes the sole lead (5.0/6).
R4 · HEAD-TO-HEAD · WINNER VS 2ND
Pear Xu drew with Jesus Angel Hurtado Diaz (Black).
R1–R3 · WIN STREAK
Pear Xu won 3 in a row (R1–R3).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Pear Xu | * | ½ | — | — |
| 2Jesus Angel Hurtado Diaz | ½ | * | — | — |
| 3Sai Krishna | — | — | * | — |
| 4Samarth Rajesh Ragavan | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Xu, Pear | 1640 | USA | +56N | +60B | +7B | =2N | =59B | +58N | 5.0 | 13.0 | 14.5 | 11.50 | 2005 | +92.8 |
| 2 | Hurtado Diaz, Jesus Angel | 1870 | MEX | +42N | +15B | =22N | =1B | =80N | +14B | 4.5 | 17.0 | 17.5 | 13.25 | 1975 | +12.2 |
| 3 | Krishna, Sai | 1607 | USA | =19N | +74B | =16N | =5B | +32N | +76B | 4.5 | 14.5 | 15.5 | 10.00 | 1942 | +66.8 |
| 4 | Ragavan, Samarth Rajesh | 1916 | USA | −25N | +55B | =41N | +54B | +15N | +80B | 4.5 | 11.5 | 12.0 | 8.00 | 1966 | +6.8 |
| 5 | Xu, Olivia | 1683 | USA | +34N | +23B | −11B | =3N | =6B | +49N | 4.0 | 18.0 | 20.0 | 11.75 | 1791 | +26.6 |
| 6 | Villamar, Eros | 1797 | CAN | =27N | +19B | +21N | −14B | =5N | +26B | 4.0 | 17.5 | 20.5 | 13.50 | 1841 | +8.8 |
| 7 | Lin, Ashley | 1761 | USA | +32N | +18B | −1N | +25B | −37N | +52B | 4.0 | 16.5 | 18.5 | 11.00 | 1654 | -11.6 |
| 8 | Fang, Jack Junrui | 1809 | USA | =54B | +31N | =13B | =18N | =46B | +24N | 4.0 | 14.5 | 16.0 | 10.75 | 1854 | +12.8 |
| 9 | Bankhead, Benjamin | 1724 | USA | +41B | +40N | =24B | +13N | =58N | −37B | 4.0 | 13.0 | 14.5 | 9.75 | 1963 | +29.8 |
| 10 | Ograin, Arjun | 1867 | USA | −13B | −35N | +57B | +45N | +31B | +46N | 4.0 | 12.5 | 14.0 | 8.00 | 1756 | -24.8 |
| 11 | Tjipto, Gavin | 1663 | USA | +55N | +29B | +5N | +80B | F | −28N | 4.0 | 12.0 | 12.0 | 9.00 | 1767 | +11.2 |
| 12 | Abgaryan, Vahe | 0 | USA | −23N | +26B | +33N | +50B | +?N | −?B | 4.0 | 10.5 | 10.5 | 7.50 | 1840 | 0.0 |
| 13 | Weng, Yu-HsinWCM | 1661 | TPE | +10N | +33B | =8N | −9B | =22N | =16B | 3.5 | 18.5 | 21.0 | 11.75 | 1845 | +30.4 |
| 14 | Stern, Eli Russell | 1733 | USA | +57B | =70N | +17B | +6N | −28B | −2N | 3.5 | 16.5 | 17.5 | 9.50 | 1779 | +17.2 |
| 15 | Wang, Chase | 1754 | USA | +81B | −2N | +35B | =36N | −4B | +72N | 3.5 | 15.0 | 15.5 | 5.25 | 1784 | +4.5 |
| 16 | Cole, Christopher | 1746 | USA | =31B | +47N | =3B | −75N | +40B | =13N | 3.5 | 14.5 | 15.5 | 9.25 | 1823 | +7.8 |
| 17 | Stern, Sebastian Jeffrey | 1713 | USA | =45N | +27B | −14N | −32B | +47N | +54B | 3.5 | 13.0 | 14.5 | 7.50 | 1543 | -27.2 |
| 18 | Boyle, Gary | 0 | USA | +61B | −7N | +44B | =8B | +69N | −?N | 3.5 | 12.5 | 12.5 | 6.50 | 1707 | 0.0 |
| 19 | Dang, Kien | 0 | USA | =3B | −6N | =31B | +?N | +73B | =?N | 3.5 | 12.0 | 12.0 | 4.50 | 1760 | 0.0 |
| 20 | Dixit, Raajas Kunal | 1688 | USA | −33N | −34B | +71N | +62B | =38N | +51B | 3.5 | 11.0 | 12.0 | 5.75 | 1773 | +23.6 |
| 21 | Chen, Renae | 1716 | USA | F | +54N | −6B | =40N | +41B | +75N | 3.5 | 10.5 | 10.5 | 5.50 | 1802 | +18.0 |
| 22 | Fang, Zelin | 1813 | USA | +35B | +44N | =2B | −28N | =13B | −48N | 3.0 | 15.5 | 17.5 | 8.50 | 1706 | -29.2 |
| 23 | Yu, Benjamin | 0 | USA | +12B | −5N | =40B | =41N | F | +32B | 3.0 | 14.5 | 14.5 | 8.50 | 1694 | 0.0 |
| 24 | Suthar, Om | 1752 | USA | +71N | +25B | =9N | −58B | =67N | −8B | 3.0 | 14.0 | 15.0 | 6.75 | 1648 | -22.0 |
| 25 | Teng, Benjamin | 0 | USA | +4B | −24N | +?B | −7N | F | +34B | 3.0 | 14.0 | 14.0 | 7.00 | 1814 | 0.0 |
| 26 | Gasparyan, Seryozha | 1852 | USA | −40B | −12N | +55B | +70N | +42B | −6N | 3.0 | 13.5 | 14.5 | 4.50 | 1694 | -16.0 |
| 27 | Bhamidipati, Suryatej | 0 | USA | =6B | −17N | +81B | −?N | =43B | +42N | 3.0 | 12.0 | 12.0 | 5.50 | 1663 | 0.0 |
| 28 | Delijani, Taja | 1852 | USA | F | F | F | +22B | +14N | +11B | 3.0 | 10.5 | 10.5 | 10.50 | 2536 | +41.6 |
| 29 | Kaushik, Siddharth | 0 | USA | +69B | −11N | +77B | −48N | −49B | +73N | 3.0 | 10.0 | 11.0 | 3.00 | 1749 | 0.0 |
| 30 | Galstyan, David G | 1532 | RUS | F | F | F | +43N | +72B | +59N | 3.0 | 4.5 | 4.5 | 4.50 | 2495 | +85.2 |
| 31 | Zhang, Matthew | 1923 | USA | =16N | −8B | =19N | +65B | −10N | =33B | 2.5 | 17.5 | 19.0 | 6.25 | 1737 | -49.6 |
| 32 | Berenson, Archer D | 1667 | USA | −7B | =69N | +47B | +17N | −3B | −23N | 2.5 | 17.0 | 18.0 | 6.00 | 1627 | -10.0 |
| 33 | Patankar, Shubham | 1769 | USA | +20B | −13N | −12B | +82N | −52B | =31N | 2.5 | 15.5 | 16.0 | 5.25 | 1756 | -2.4 |
| 34 | Oldham, David Cody | 1803 | USA | −5B | +20N | =43B | −72N | +64B | −25N | 2.5 | 14.0 | 15.0 | 6.00 | 1581 | -24.4 |
| 35 | Gu, Thomas | 1654 | USA | −22N | +10B | −15N | −42B | =62N | +83B | 2.5 | 14.0 | 14.5 | 5.25 | 1721 | +9.6 |
| 36 | Ly, Terrence | 1748 | USA | F | =43N | +70B | =15B | =68N | −50B | 2.5 | 10.0 | 10.0 | 4.50 | 1665 | -17.2 |
| 37 | Chen, Tony | 0 | USA | F | F | F | =63N | +7B | +9N | 2.5 | 9.5 | 9.5 | 8.75 | 1773 | 0.0 |
| 38 | Baker, Steven | 0 | USA | −44B | +57N | +82B | −59N | =20B | F | 2.5 | 9.0 | 9.0 | 3.75 | 1679 | 0.0 |
| 39 | Senthil, Girish | 0 | USA | F | F | F | =?B | +48B | +63N | 2.5 | 3.5 | 3.5 | 3.50 | 1794 | 0.0 |
| 40 | Ye, Brian | 1709 | USA | +26N | −9B | =23N | =21B | −16N | −78B | 2.0 | 17.0 | 18.0 | 6.25 | 1585 | -33.2 |
| 41 | Venkat, Varun | 1717 | USA | −9N | +61N | =4B | =23B | −21N | F | 2.0 | 16.5 | 16.5 | 5.25 | 1513 | -29.2 |
| 42 | Katz, Stewart | 1728 | USA | −2B | =81N | =56B | +35N | −26N | −27B | 2.0 | 14.5 | 15.0 | 3.50 | 1672 | -6.6 |
| 43 | Parikh, Vian Hemish | 1599 | USA | F | =36B | =34N | −30B | =27N | =66B | 2.0 | 12.5 | 12.5 | 4.75 | 1569 | -5.2 |
| 44 | Wang, Albert Hao | 0 | USA | +38N | −22B | −18N | −51B | =?B | =64N | 2.0 | 12.5 | 12.5 | 3.25 | 1471 | 0.0 |
| 45 | Kwan, Wesley | 0 | USA | =17B | =?N | −46B | −10B | =57N | =70N | 2.0 | 12.0 | 12.0 | 3.00 | 1544 | 0.0 |
| 46 | Zhong, Andy | 1592 | USA | F | F | +45N | =69B | =8N | −10B | 2.0 | 11.0 | 11.0 | 4.50 | 1688 | +13.6 |
| 47 | Ju, Jason Jialong | 0 | USA | F | −16B | −32N | +81N | −17B | +?N | 2.0 | 10.0 | 10.0 | 0.50 | 908 | 0.0 |
| 48 | Leszczynski, Philip | 1821 | USA | F | F | F | +29B | −39N | +22B | 2.0 | 9.5 | 9.5 | 6.00 | 2613 | +9.8 |
| 49 | Eisenberg, Linus Nguyen | 1713 | USA | F | F | F | +60B | +29N | −5B | 2.0 | 8.5 | 8.5 | 4.50 | 882 | -21.6 |
| 50 | Jargalsaikhan, Ochir | 1762 | USA | F | F | F | −12N | +78B | +36N | 2.0 | 7.5 | 7.5 | 3.50 | 2491 | +32.4 |
| 51 | Jagan, Arjun | 1642 | USA | F | F | F | +44N | +56B | −20N | 2.0 | 7.0 | 7.0 | 3.50 | 1659 | +1.6 |
| 52 | Lin, Xingchen | 0 | USA | F | F | F | +83B | +33N | −7N | 2.0 | 7.0 | 7.0 | 3.00 | 1810 | 0.0 |
| 53 | Zhang, Blake | 0 | USA | F | F | F | +56N | −?B | +69B | 2.0 | 2.5 | 2.5 | 2.50 | 1765 | 0.0 |
| 54 | Margalit, Ryder Sebastian | 1604 | USA | =8N | −21B | F | −4N | +70B | −17N | 1.5 | 16.5 | 16.5 | 3.00 | 1590 | -6.8 |
| 55 | Guan, Renee Jiayi | 0 | USA | −11B | −4N | −26N | +84B | =83N | −65B | 1.5 | 13.5 | 14.0 | 0.75 | 1459 | 0.0 |
| 56 | Nalakonda, Anish | 1624 | USA | −1B | F | =42N | −53B | −51N | +60B | 1.5 | 12.5 | 12.5 | 2.50 | 1397 | -33.6 |
| 57 | Khurana, Viyaan | 1564 | USA | −14N | −38B | −10N | F | =45B | +82N | 1.5 | 12.5 | 12.5 | 1.50 | 1000 | -16.8 |
| 58 | Silvestre, Romulo | 1780 | USA | F | F | F | +24N | =9B | −1B | 1.5 | 12.0 | 12.0 | 5.00 | 1704 | -12.8 |
| 59 | Simanovski, Davit | 1785 | ARM | F | F | F | +38B | =1N | −30B | 1.5 | 10.5 | 10.5 | 5.00 | 1393 | -40.0 |
| 60 | Lu, Ryan | 0 | USA | +77B | −1N | −73B | −49N | =?B | −56N | 1.5 | 10.5 | 10.5 | 1.00 | 1463 | 0.0 |
| 61 | Sargsyan, Davit S. | 0 | ARM | −18N | −41B | +74N | −79B | −66N | =84B | 1.5 | 9.0 | 9.5 | 1.25 | 916 | 0.0 |
| 62 | Srinivasan, Santhosh | 1664 | USA | F | F | F | −20N | =35B | +71N | 1.5 | 7.0 | 7.0 | 2.25 | 1666 | +0.4 |
| 63 | Yi, Victor | 1713 | USA | F | F | F | =37B | +76N | −39B | 1.5 | 6.0 | 6.0 | 2.25 | 2700 | +29.6 |
| 64 | Lien, Isaac | 0 | USA | F | F | F | +74B | −34N | =44B | 1.5 | 5.5 | 5.5 | 2.00 | 1003 | 0.0 |
| 65 | Reyes Melendez, Kevin Alejandro | 1853 | USA | F | F | F | −31N | =82B | +55N | 1.5 | 4.5 | 4.5 | 1.75 | 1120 | -8.2 |
| 66 | Kong, Ryan D | 0 | USA | F | F | F | −?N | +61B | =43N | 1.5 | 3.5 | 3.5 | 2.50 | 1478 | 0.0 |
| 67 | Torousian, Emin | 0 | USA | F | F | F | +?B | =24B | F | 1.5 | 3.0 | 3.0 | 1.50 | 1690 | 0.0 |
| 68 | FIDE 39989917 | 0 | — | F | F | F | +?N | =36B | F | 1.5 | 2.5 | 2.5 | 1.25 | 1835 | 0.0 |
| 69 | Bronshtein, Marc | 1764 | USA | −29N | =32B | F | =46N | −18B | −53N | 1.0 | 13.0 | 13.0 | 2.25 | 1630 | -14.4 |
| 70 | Lau, Marcus | 1540 | USA | F | =14B | −36N | −26B | −54N | =45B | 1.0 | 12.5 | 12.5 | 2.75 | 1412 | -21.2 |
| 71 | Chan, Max | 1626 | USA | −24B | −77N | −20B | F | +84N | −62B | 1.0 | 9.5 | 9.5 | 0.50 | 962 | -53.2 |
| 72 | Nguyen, Minh Nhat | 1702 | USA | F | F | F | +34B | −30N | −15B | 1.0 | 9.0 | 9.0 | 2.50 | 1573 | -20.4 |
| 73 | Vellore, Inay | 1583 | USA | F | F | +60N | −76B | −19N | −29B | 1.0 | 9.0 | 9.0 | 1.50 | 1100 | -5.2 |
| 74 | Helmy, Leo | 0 | USA | F | −3N | −61B | −64N | +81B | −?N | 1.0 | 8.0 | 8.0 | 0.50 | 899 | 0.0 |
| 75 | Jura, Sean | 0 | USA | F | F | F | +16B | −?N | −21B | 1.0 | 7.0 | 7.0 | 3.50 | 1605 | 0.0 |
| 76 | Lucan, Marius-Gabriel | 1900 | ROU | F | F | F | +73N | −63B | −3N | 1.0 | 7.0 | 7.0 | 1.00 | 1514 | -29.0 |
| 77 | Baluran, Alejandrino | 1947 | USA | −60N | +71B | −29N | F | F | F | 1.0 | 5.5 | 5.5 | 1.00 | 2426 | +2.6 |
| 78 | Labaznikova, Kseniya | 1634 | RUS | F | F | F | F | −50N | +40N | 1.0 | 4.0 | 4.0 | 2.00 | 1736 | +10.8 |
| 79 | Abadesco, Jon Cristoff | 0 | USA | F | F | F | +61N | −?B | −?N | 1.0 | 1.5 | 1.5 | 1.50 | 868 | 0.0 |
| 80 | Nguyen, Joseph | 0 | USA | F | F | F | −11N | =2B | −4N | 0.5 | 13.0 | 13.0 | 2.25 | 1544 | 0.0 |
| 81 | FIDE 39988074 | 0 | — | −15N | =42B | −27N | −47B | −74N | F | 0.5 | 11.5 | 11.5 | 1.00 | 1551 | 0.0 |
| 82 | Choi, Youngjun | 0 | KOR | F | F | −38N | −33B | =65N | −57B | 0.5 | 8.0 | 8.0 | 0.75 | 1456 | 0.0 |
| 83 | Lew, Evan Jet | 1838 | USA | F | F | F | −52N | =55B | −35N | 0.5 | 6.0 | 6.0 | 0.75 | 885 | -28.0 |
| 84 | FIDE 2092506 | 0 | — | F | F | F | −55N | −71B | =61N | 0.5 | 4.0 | 4.0 | 0.75 | 826 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Xu, PearUSA+92.85.0 pts · #2
- 2Galstyan, David GRUS+85.23.0 pts · #12
- 3Krishna, SaiUSA+66.84.5 pts · #16
Top rating losers
- 1Chan, MaxUSA-53.21.0 pts · #73
- 2Zhang, MatthewUSA-49.62.5 pts · #29
- 3Simanovski, DavitARM-40.01.5 pts · #67
Biggest upsets
- R6+293 Elo gap
- R6+253 Elo gap
- R2+213 Elo gap