12th Annual Potomac Open - Championship
34 players participated in this 5-round tournament, held from 25 Jul 2025 to 27 Jul 2025 in Rockville, MD, United States. 7 titled players from 3 federations. Top 10 Elo average was 2195, and top seed was Tal Baron (🇮🇱 ISR, GM, 2436).
Daniel Girsh (🇺🇸 USA, FM, 2237) won with 4.5/5, ahead of Matthew Guo Diao (4.0) and Raphael D Schwartz (3.5). Girsh broke clear in the final round.
The biggest upset came in round 4: Brandon Joseph Chen (1833) beat Kevin Wang (2171), a +338-point gap.
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How it unfolded
Top 6 · 5 roundsFM Daniel Girsh led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
FM Daniel Girsh held the sole lead from R5 through R5 without losing it.
FM Daniel Girsh drew with FM Matthew Guo Diao (White).
FM Daniel Girsh went unbeaten across 5 games (R1–R5).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1FMDaniel Girsh | * | ½ | — | — |
| 2FMMatthew Guo Diao | ½ | * | — | — |
| 3Raphael D Schwartz | — | — | * | 1 |
| 4Hanford Chong | — | — | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Girsh, DanielFM | 2237 | USA | +11B | +6N | =2B | +4N | +15B | 4.5 | 12.5 | 14.5 | 12.50 | 2427 | +19.4 |
| 2 | Diao, Matthew GuoFM | 2244 | USA | +20N | +10B | =1N | +9B | =12N | 4.0 | 12.0 | 13.5 | 10.00 | 2343 | +21.0 |
| 3 | Schwartz, Raphael D | 1926 | USA | F | +27N | =15B | +6N | +7B | 3.5 | 9.0 | 9.0 | 8.00 | 2349 | +76.4 |
| 4 | Zlodorev, Alexander | 1934 | USA | +21B | =5N | +32N | −1B | =24B | 3.0 | 10.5 | 11.0 | 4.25 | 2177 | +63.2 |
| 5 | Swaminathan, Pranav | 2113 | USA | +26N | =4B | −9N | +18B | =14B | 3.0 | 10.0 | 11.0 | 5.75 | 1933 | -40.4 |
| 6 | Moorhouse, Will | 2009 | USA | +33N | −1B | +26N | −3B | +30N | 3.0 | 10.0 | 10.5 | 2.50 | 2025 | +4.8 |
| 7 | Chong, Hanford | 1969 | USA | =15B | =22N | +34B | +8N | −3N | 3.0 | 10.0 | 10.0 | 4.75 | 2031 | +15.6 |
| 8 | Yue, Andy | 1923 | USA | −23N | +33B | +10N | −7B | +32N | 3.0 | 7.5 | 8.0 | 3.50 | 2059 | +37.2 |
| 9 | Katta, Sriansh | 1929 | USA | =29N | +13B | +5B | −2N | F | 2.5 | 10.5 | 10.5 | 6.00 | 2215 | +57.2 |
| 10 | Desai, Aneesh | 1992 | USA | +28B | −2N | −8B | =33N | +20B | 2.5 | 9.5 | 10.0 | 2.75 | 1959 | -5.2 |
| 11 | Balakrishnan, Naveen | 1872 | USA | −1N | −26B | +27B | +34N | =17B | 2.5 | 8.5 | 8.5 | 2.00 | 1948 | +16.8 |
| 12 | Baron, TalGM | 2436 | ISR | F | F | +19B | +24N | =2B | 2.5 | 7.5 | 7.5 | 5.50 | 2378 | -0.9 |
| 13 | Sherman, David | 1952 | USA | =22B | −9N | +28B | −21N | +31B | 2.5 | 6.5 | 7.5 | 2.75 | 1927 | -3.6 |
| 14 | Li, Mason J | 1862 | USA | F | +29B | =16N | =32B | =5N | 2.5 | 6.5 | 6.5 | 3.75 | 2233 | +72.4 |
| 15 | Ansh M Shah | 2244 | IND | =7N | F | =3N | +30B | −1N | 2.0 | 12.0 | 12.0 | 4.25 | 2017 | -21.4 |
| 16 | Sriniaiyer, SudarshanFM | 2215 | USA | F | F | =14B | +22N | =21B | 2.0 | 5.5 | 5.5 | 3.50 | 2075 | -8.0 |
| 17 | Su, Kevin | 1992 | USA | F | F | =20N | +26B | =11N | 2.0 | 5.0 | 5.0 | 3.00 | 2003 | +1.6 |
| 18 | Aayansh Pramanik | 1739 | USA | F | F | +25N | −5N | +34B | 2.0 | 4.5 | 4.5 | 1.50 | 2092 | +52.4 |
| 19 | Mariappan, Anish | 1890 | USA | +34N | +23B | −12N | F | F | 2.0 | 4.0 | 4.0 | 1.50 | 2202 | +22.4 |
| 20 | Srinivasan, Arjun | 1922 | USA | −2B | =28N | =17B | =23B | −10N | 1.5 | 10.0 | 11.0 | 2.25 | 1893 | -10.0 |
| 21 | Yue, TariqCM | 2131 | USA | −4N | F | −24N | +13B | =16N | 1.5 | 9.0 | 9.0 | 3.50 | 1935 | -32.6 |
| 22 | Ghosh, Yohan | 1858 | USA | =13N | =7B | =29N | −16B | F | 1.5 | 8.5 | 8.5 | 3.25 | 1990 | +21.2 |
| 23 | Samuelson, AndrewFM | 2100 | USA | +8B | −19N | −30B | =20N | F | 1.5 | 7.5 | 7.5 | 3.75 | 1831 | -29.0 |
| 24 | Ben Jemaa, Munir | 1988 | USA | F | F | +21B | −12B | =4N | 1.5 | 7.0 | 7.0 | 3.00 | 2151 | +10.6 |
| 25 | Sridhar, Jagadeeshwar Yehamandram | 1946 | USA | F | F | −18B | +27B | =28N | 1.5 | 4.0 | 4.0 | 1.50 | 1818 | -20.4 |
| 26 | Samanta, Aayansh | 1841 | USA | −5B | +11N | −6B | −17N | −27N | 1.0 | 10.5 | 11.5 | 2.50 | 1723 | -25.9 |
| 27 | Zhou, Alexander Zheng | 1831 | USA | F | −3B | −11N | −25N | +26B | 1.0 | 8.5 | 8.5 | 1.00 | 1703 | -25.6 |
| 28 | Ramnath, Architsai | 1885 | USA | −10N | =20B | −13N | F | =25B | 1.0 | 8.0 | 8.0 | 1.50 | 1760 | -25.2 |
| 29 | Wang, Kevin | 2171 | USA | =9B | −14N | =22B | −31N | F | 1.0 | 7.5 | 7.5 | 2.00 | 1678 | -52.8 |
| 30 | Regam, JessicaWFM | 1937 | USA | F | F | +23N | −15N | −6B | 1.0 | 6.5 | 6.5 | 1.50 | 1993 | +3.6 |
| 31 | Chen, Brandon Joseph | 1833 | USA | F | F | F | +29B | −13N | 1.0 | 3.5 | 3.5 | 1.00 | 2062 | +21.6 |
| 32 | Mujumdar, Sameer | 2054 | USA | F | F | −4B | =14N | −8B | 0.5 | 8.5 | 8.5 | 1.25 | 1633 | -31.8 |
| 33 | Wang, William J | 1823 | USA | −6B | −8N | F | =10B | F | 0.5 | 8.5 | 8.5 | 1.25 | 1702 | -8.0 |
| 34 | Beckman, Thomas | 1842 | USA | −19B | F | −7N | −11B | −18N | 0.0 | 9.5 | 9.5 | 0.00 | 1068 | -37.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Schwartz, Raphael DUSA+76.43.5 pts · #3
- 2Li, Mason JUSA+72.42.5 pts · #10
- 3Zlodorev, AlexanderUSA+63.23.0 pts · #5
- 1Wang, KevinUSA-52.81.0 pts · #30
- 2Swaminathan, PranavUSA-40.43.0 pts · #6
- 3Beckman, ThomasUSA-37.20.0 pts · #34
- R4+338 Elo gap
- R2+309 Elo gap
- R2+210 Elo gap