57th Annual Atlantic Open - U2100
Open SwissStandard
46 players participated in this 5-round tournament, held from 22 Aug 2025 to 24 Aug 2025 in Washington, DC, United States. 2 titled players from 6 federations. Top 10 Elo average was 1867, and top seed was Kevin McPherson (🇺🇸 USA, 1920).
John Ludlum (🇺🇸 USA, 1813) won with 5.0/5, ahead of Michael Joseph Maguire (4.0) and Leif Karell (4.0). Ludlum won solo starting round 3.
The biggest upset came in round 4: Rishik Bhattacharyya (1513) beat Kevin McPherson (1920), a +407-point gap.
Location
🇺🇸Washington, DC, United States
Dates
22 Aug 2025 → 24 Aug 2025
Time control
Standard: 40 Moves in 80 Min. Del. 30 Sec. / / 30 Min. Del. 30 Sec.
System
Swiss · 5 rounds
Titled players · 2
WFM×1
WCM×1
Federations · 6 represented
🇺🇸United States of America×40
FIDE (no federation)×1
🇮🇳India×1
🇫🇷France×1
🇻🇪Venezuela×1
🇲🇦Morocco×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsJohn Ludlum led from R3; +1.0-point edge over the runner-up.
Co-leaders
8
4
1
1
1
R3–R5 · LEAD HELD
John Ludlum never relinquished the lead after R3; final gap +1.0 over the runner-up.
WIN STREAKS · 3 top finishers
John Ludlum 5 wins (R1–R5)Leif Karell 3 wins (R2–R4)Michael Joseph Maguire 4 wins (R2–R5)
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ludlum, John | 1813 | USA | +13B | +45N | +17B | +36N | +23B | 5.0 | 7.5 | 7.5 | 7.50 | 2567 | +88.0 |
| 2 | Maguire, Michael Joseph, Esq | 0 | USA | −7N | +26B | +44N | +18B | +8N | 4.0 | 9.5 | 9.5 | 6.50 | 1715 | 0.0 |
| 3 | Karell, Leif | 1728 | USA | =40N | +14B | +43N | +11B | =19N | 4.0 | 7.5 | 7.5 | 6.25 | 1974 | +25.4 |
| 4 | Li, Ella Xinyi | 1632 | USA | =5N | +6B | −28N | +43B | +11N | 3.5 | 11.0 | 11.0 | 7.75 | 1939 | +62.4 |
| 5 | Rosario, Salvador | 1893 | USA | =4B | +12N | +35B | =19B | =21N | 3.5 | 10.0 | 11.0 | 7.25 | 1930 | +5.6 |
| 6 | Surya | 1882 | IND | =12B | −4N | +40B | +41N | +25N | 3.5 | 8.5 | 9.0 | 4.25 | 1766 | -23.2 |
| 7 | Gao, Vincent | 1578 | USA | +2B | =9N | =21B | −8B | +34N | 3.0 | 12.0 | 13.0 | 7.50 | 1741 | +34.4 |
| 8 | Martin, Jeff | 1749 | USA | +32B | +10N | −36B | +7N | −2B | 3.0 | 11.5 | 12.5 | 7.50 | 1823 | +7.4 |
| 9 | Murthy, Ayush | 1799 | USA | +26N | =7B | −19N | +38B | =24N | 3.0 | 8.5 | 9.5 | 5.00 | 1792 | -0.4 |
| 10 | Shah, Kanav | 1622 | USA | +43N | −8B | +20N | =24B | =28N | 3.0 | 8.5 | 8.5 | 3.75 | 1698 | +16.0 |
| 11 | Huckle, Freddie | 1854 | FRA | =15N | +40B | +22B | −3N | −4B | 2.5 | 12.0 | 12.5 | 3.75 | 1741 | -23.6 |
| 12 | Paas, Leo | 1719 | USA | =6N | −5B | −27N | +20B | +31N | 2.5 | 10.5 | 12.0 | 5.25 | 1653 | -15.2 |
| 13 | Doddapaneni, Nishka Sree | 1636 | USA | −1N | −29B | +46N | =34B | +27N | 2.5 | 9.0 | 9.0 | 2.00 | 1636 | -0.4 |
| 14 | Sammons, Matthew Willis | 1670 | USA | F | −3N | +37B | =35N | +18B | 2.5 | 8.0 | 8.0 | 3.50 | 1831 | +17.2 |
| 15 | Rajeev, Pallavi | 0 | FID | =11B | −22N | =30N | +44B | =35B | 2.5 | 7.0 | 7.0 | 2.50 | 1722 | 0.0 |
| 16 | Sadhu Venkata, Vahini | 1671 | USA | F | F | =34N | +33B | +17N | 2.5 | 4.5 | 4.5 | 4.00 | 2027 | +52.8 |
| 17 | Cumming, Gabriel | 1840 | USA | +29N | +34B | −1N | −21N | −16B | 2.0 | 11.0 | 12.0 | 2.50 | 1616 | -57.6 |
| 18 | Thomas, Nicholas | 1699 | USA | +27B | +20N | −23B | −2N | −14N | 2.0 | 10.5 | 12.0 | 3.50 | 1680 | -2.0 |
| 19 | Shiman, Andrew Lewis | 1920 | USA | F | F | +9B | =5N | =3B | 2.0 | 10.5 | 10.5 | 6.75 | 1932 | +1.0 |
| 20 | Karim, Alikhan | 1507 | USA | +30N | −18B | −10B | −12N | +44N | 2.0 | 9.0 | 9.0 | 1.50 | 1483 | -4.4 |
| 21 | Canelon Chaguan, Pedro Luis | 1836 | VEN | F | F | =7N | +17B | =5B | 2.0 | 8.5 | 8.5 | 5.25 | 1893 | +10.8 |
| 22 | McPherson, Kevin | 1920 | USA | F | +15B | −11N | −25B | +26N | 2.0 | 8.5 | 8.5 | 4.00 | 1559 | -26.2 |
| 23 | Zhang, Tommy | 1868 | USA | F | F | +18N | +28B | −1N | 2.0 | 8.5 | 8.5 | 3.50 | 1877 | +1.2 |
| 24 | Zhou, Yifei | 1789 | USA | F | F | +29B | =10N | =9B | 2.0 | 7.5 | 7.5 | 4.50 | 1780 | -0.8 |
| 25 | Bhattacharyya, Rishik | 1513 | USA | F | F | +45B | +22N | −6B | 2.0 | 5.5 | 5.5 | 2.00 | 1956 | +62.4 |
| 26 | Wang, Leo | 1678 | USA | −9B | −2N | +42B | =31N | −22B | 1.5 | 10.5 | 11.0 | 1.25 | 1060 | -21.6 |
| 27 | Acharya, Kritarth | 1678 | USA | −18N | =30B | +12B | −39N | −13B | 1.5 | 8.5 | 9.5 | 3.25 | 1535 | -38.0 |
| 28 | Lussie, Alexandra | 1744 | USA | F | F | +4B | −23N | =10B | 1.5 | 8.5 | 8.5 | 5.00 | 1708 | -6.0 |
| 29 | Joseph, Alisa | 1543 | USA | −17B | +13N | −24N | =30B | −33N | 1.5 | 8.0 | 9.5 | 3.25 | 1606 | +12.0 |
| 30 | Go, Jordan Alexander | 1665 | USA | −20B | =27N | =15B | =29N | F | 1.5 | 7.5 | 7.5 | 2.75 | 1451 | -34.0 |
| 31 | Wooten, Malcolm | 0 | USA | F | F | +32N | =26B | −12B | 1.5 | 5.5 | 5.5 | 2.25 | 1644 | 0.0 |
| 32 | Nigam, Myra | 1534 | USA | −8N | F | −31B | +46N | =37N | 1.5 | 5.5 | 5.5 | 0.50 | 1680 | +22.8 |
| 33 | Arif, FadouaWFM | 1845 | MAR | F | F | =41B | −16N | +29B | 1.5 | 4.5 | 4.5 | 1.75 | 1584 | -18.8 |
| 34 | Birudavolu, Sathvik | 1578 | USA | F | −17N | =16B | =13N | −7B | 1.0 | 10.0 | 10.0 | 2.50 | 1486 | -19.2 |
| 35 | Brown, Wilbert | 1798 | USA | F | F | −5N | =14B | =15N | 1.0 | 8.5 | 8.5 | 2.50 | 1589 | -10.8 |
| 36 | Shirvell, Matthew M | 1793 | USA | F | F | +8N | −1B | F | 1.0 | 8.0 | 8.0 | 3.00 | 1782 | -0.6 |
| 37 | Rana, Shyla | 1727 | USA | F | F | −14N | =42N | =32B | 1.0 | 4.5 | 4.5 | 1.00 | 1409 | -32.4 |
| 38 | Wu, Cody | 1639 | USA | F | F | F | −9N | +41B | 1.0 | 3.5 | 3.5 | 0.50 | 1668 | +2.8 |
| 39 | Wong, Nathaniel | 1703 | USA | F | F | F | +27B | F | 1.0 | 1.5 | 1.5 | 1.50 | 2476 | +18.4 |
| 40 | Hoffman, Jesse N | 1681 | USA | =3B | −11N | −6N | F | F | 0.5 | 10.0 | 10.0 | 2.00 | 1549 | -8.8 |
| 41 | Wang, Charles | 1536 | USA | F | F | =33N | −6B | −38N | 0.5 | 6.0 | 6.0 | 0.75 | 1516 | -4.4 |
| 42 | Chintalacheruvu, Aarush | 0 | USA | F | F | −26N | =37B | F | 0.5 | 2.5 | 2.5 | 0.50 | 1507 | 0.0 |
| 43 | FIDE 39990117 | 0 | — | −10B | F | −3B | −4N | F | 0.0 | 10.5 | 10.5 | 0.00 | 861 | 0.0 |
| 44 | Liu, Caden | 0 | USA | F | F | −2B | −15N | −20B | 0.0 | 8.5 | 8.5 | 0.00 | 707 | 0.0 |
| 45 | Christiansen, NatashaWCM | 1697 | USA | F | −1B | −25N | F | F | 0.0 | 7.0 | 7.0 | 0.00 | 863 | -21.6 |
| 46 | Nettem, Subhang | 1570 | USA | F | F | −13B | −32B | F | 0.0 | 4.0 | 4.0 | 0.00 | 785 | -38.4 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Ludlum, JohnUSA+88.05.0 pts · #1
- 2Li, Ella XinyiUSA+62.43.5 pts · #8
- 3Bhattacharyya, RishikUSA+62.42.0 pts · #20
Top rating losers
- 1Cumming, GabrielUSA-57.62.0 pts · #19
- 2Nettem, SubhangUSA-38.40.0 pts · #46
- 3Acharya, KritarthUSA-38.01.5 pts · #23
Biggest upsets
- R4+407 Elo gap
- R2+250 Elo gap
- R5+222 Elo gap