3rd Silman Memorial Tuesday Night Marathon - 2000 and Over Round 1-3
38 players participated in this 3-round tournament, held from 05 May 2026 to 19 May 2026 in San Francisco, CA, United States. 8 titled players from 3 federations. Top 10 Elo average was 2250, and top seed was Christopher Woojin Yoo (🇺🇸 USA, GM, 2607).
Mark Heimann (🇺🇸 USA, GM, 2479) won with 2.5/3, ahead of Christopher Woojin Yoo (2.5) and Jeremy David Cawthon (2.5). Heimann shared the lead from round 1, winning on tie-break.
The biggest upset came in round 3: Zeno Kalonaris (1749) beat Arthur Ismakov (2125), a +376-point gap.
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How it unfolded
Top 6 · 3 roundsTight race until R3; 3 players tied at 2.5/3, decided on Buchholz.
3 players finish on 2.5/3. Heimann takes the title on Buchholz Cut1 (4.5).
GM Mark Heimann drew with GM Christopher Woojin Yoo (White).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1GMMark Heimann | * | ½ | — | 1 |
| 2GMChristopher Woojin Yoo | ½ | * | — | — |
| 3Jeremy David Cawthon | — | — | * | — |
| 4Yusheng Xia | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Heimann, MarkGM | 2479 | USA | +33B | +4N | =2B | 2.5 | 4.5 | 4.5 | 3.25 | 2528 | +3.3 |
| 2 | Yoo, Christopher WoojinGM | 2607 | USA | +13N | +17B | =1N | 2.5 | 4.0 | 5.0 | 3.75 | 2571 | -0.1 |
| 3 | Cawthon, Jeremy David | 1952 | USA | +18N | +20B | =14N | 2.5 | 2.5 | 3.5 | 2.75 | 2392 | +30.6 |
| 4 | Xia, Yusheng | 2073 | USA | +8N | −1B | +19N | 2.0 | 4.5 | 5.5 | 3.00 | 2104 | +3.0 |
| 5 | Lee, AndyFM | 2144 | USA | +22B | −10N | +15B | 2.0 | 3.5 | 4.5 | 2.50 | 2121 | -1.0 |
| 6 | Ritesh Dharmatti | 1794 | IND | =28N | =13B | +17N | 2.0 | 2.5 | 3.0 | 2.00 | 2166 | +27.0 |
| 7 | Suarez, Sebastian | 2262 | USA | +29N | +9B | F | 2.0 | 2.5 | 2.5 | 2.50 | 2729 | +9.6 |
| 8 | Kalonaris, Zeno | 1749 | USA | −4B | +33N | +28B | 2.0 | 2.5 | 2.5 | 0.50 | 2092 | +24.4 |
| 9 | Zavgorodniy, Andrew | 1958 | USA | +31B | −7N | +34B | 2.0 | 2.5 | 2.5 | 0.50 | 2045 | +3.6 |
| 10 | Senthilkumar, PranavCM | 2035 | USA | +35N | +5B | F | 2.0 | 2.0 | 2.0 | 2.00 | 2744 | +16.0 |
| 11 | Chen, Qinhong | 1903 | USA | +34N | +30B | F | 2.0 | 0.5 | 0.5 | 0.50 | 2810 | +13.0 |
| 12 | Diller, Bradley R | 1978 | USA | F | +37N | +38B | 2.0 | 0.0 | 0.0 | 0.00 | 2616 | +11.4 |
| 13 | Seshadri, Sudarshan | 1862 | USA | −2B | =6N | +36B | 1.5 | 4.5 | 4.5 | 1.00 | 1962 | +5.8 |
| 14 | Krishnan, VarunIM | 2408 | USA | +19N | F | =3B | 1.5 | 3.5 | 3.5 | 2.25 | 2201 | -3.4 |
| 15 | Heiserman, Jimmy | 2098 | USA | =21N | +24B | −5N | 1.5 | 3.0 | 4.0 | 1.50 | 1922 | -12.6 |
| 16 | Smith, OliviaWFM | 2042 | WLS | F | +36N | =21B | 1.5 | 1.0 | 1.0 | 0.50 | 2005 | -1.6 |
| 17 | Tsodikova, NataliaWFM | 2135 | USA | +26B | −2N | −6B | 1.0 | 4.5 | 5.5 | 1.00 | 1910 | -17.2 |
| 18 | Powers, Christopher | 1838 | USA | −3B | +25N | −23B | 1.0 | 3.5 | 4.5 | 1.00 | 1762 | -6.0 |
| 19 | Varun Agrawal | 1715 | IND | −14B | +26N | −4B | 1.0 | 3.5 | 4.5 | 1.00 | 1863 | +8.0 |
| 20 | Aadit Bhatia | 2166 | IND | +25B | −3N | F | 1.0 | 3.5 | 4.5 | 1.00 | 1872 | -13.6 |
| 21 | Wang, Chase | 1792 | USA | =15B | F | =16N | 1.0 | 3.0 | 4.0 | 1.50 | 2070 | +26.8 |
| 22 | Horowitz, Phineas F | 1856 | USA | −5N | +35B | F | 1.0 | 3.0 | 3.0 | 0.00 | 1944 | +3.8 |
| 23 | Seitzer, Phillip | 1919 | USA | F | F | +18N | 1.0 | 2.0 | 2.0 | 1.00 | 2638 | +7.8 |
| 24 | Parsons, Stephen | 1829 | USA | F | −15N | +30B | 1.0 | 2.0 | 2.0 | 0.50 | 2054 | +11.4 |
| 25 | Lewis, Edward | 1791 | USA | −20N | −18B | +35N | 1.0 | 2.0 | 2.0 | 0.00 | 1791 | -1.8 |
| 26 | Hasteer, Divija | 1775 | USA | −17N | −19B | +33B | 1.0 | 2.0 | 2.0 | 0.00 | 1726 | -11.2 |
| 27 | Walder, Michael | 1838 | USA | F | F | +29N | 1.0 | 1.0 | 1.0 | 0.50 | 2699 | +11.6 |
| 28 | Ismakov, Arthur | 2125 | USA | =6B | F | −8N | 0.5 | 4.0 | 4.0 | 1.00 | 1579 | -51.6 |
| 29 | Gray, William | 1899 | USA | −7B | =31N | −27B | 0.5 | 3.0 | 3.5 | 0.25 | 1703 | -15.6 |
| 30 | Winslow, ElliottIM | 2010 | USA | =32B | −11N | −24N | 0.5 | 3.0 | 3.5 | 0.25 | 1559 | -34.0 |
| 31 | Dees, Calvin Django | 1827 | USA | −9N | =29B | F | 0.5 | 2.5 | 2.5 | 0.25 | 1736 | -4.4 |
| 32 | Melville, Cailen | 1764 | USA | =30N | F | F | 0.5 | 1.5 | 1.5 | 0.25 | 2010 | +6.2 |
| 33 | McCollum, Patrick M | 1704 | USA | −1N | −8B | −26N | 0.0 | 4.5 | 5.5 | 0.00 | 1076 | -18.4 |
| 34 | FIDE 25096583 | 0 | — | −11B | F | −9N | 0.0 | 4.0 | 4.0 | 0.00 | 1131 | 0.0 |
| 35 | Perlov, Daniel | 1744 | USA | −10B | −22N | −25B | 0.0 | 3.0 | 4.0 | 0.00 | 1094 | -18.6 |
| 36 | Mercado, Adam | 1831 | USA | F | −16B | −13N | 0.0 | 3.0 | 3.0 | 0.00 | 1152 | -13.8 |
| 37 | Clemens, Kristian | 1856 | USA | F | −12B | F | 0.0 | 2.0 | 2.0 | 0.00 | 1178 | -6.6 |
| 38 | Naga Abhi Ram Ponnaluri | 1776 | USA | F | F | −12N | 0.0 | 2.0 | 2.0 | 0.00 | 1178 | -9.6 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Cawthon, Jeremy DavidUSA+30.62.5 pts · #3
- 2Ritesh DharmattiIND+27.02.0 pts · #9
- 3Wang, ChaseUSA+26.81.0 pts · #17
- 1Ismakov, ArthurUSA-51.60.5 pts · #29
- 2Winslow, ElliottIMUSA-34.00.5 pts · #32
- 3Perlov, DanielUSA-18.60.0 pts · #33
- R3+376 Elo gap
- R3+341 Elo gap
- R2+214 Elo gap