2026 New Years Tuesday Night Marathon - 2000 and Over Round 4-7
22 players participated in this 4-round tournament, held from 27 Jan 2026 to 17 Feb 2026 in San Francisco, CA, United States. 2 titled players from 2 federations. Top 10 Elo average was 1950, and top seed was Jimmy Heiserman (🇺🇸 USA, 2138).
Jeremy David Cawthon (🇺🇸 USA, 1908) won with 3.5/4, ahead of Elliott Winslow (3.5) and Jimmy Heiserman (3.0). Cawthon won on tie-break after catching the field in the final round.
The biggest upset came in round 3: Daniel Sevall (1851) beat Olivia Smith (WFM, 2091), a +240-point gap.
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How it unfolded
Top 6 · 4 roundsTight race until R4; 2 players tied at 3.5/4, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.
2 players finish on 3.5/4. Cawthon takes the title on Buchholz Cut1 (8.5).
Jeremy David Cawthon drew with IM Elliott Winslow (White).
Jimmy Heiserman won 3 in a row (R1–R3).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Jeremy David Cawthon | * | ½ | 1 | — |
| 2IMElliott Winslow | ½ | * | — | — |
| 3Jimmy Heiserman | 0 | — | * | — |
| 4Phineas F Horowitz | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Cawthon, Jeremy David | 1908 | USA | +21N | =2B | +8N | +3N | 3.5 | 8.5 | 8.5 | 6.75 | 2274 | +33.0 |
| 2 | Winslow, ElliottIM | 1965 | USA | +16B | =1N | +7B | +6N | 3.5 | 7.5 | 8.5 | 6.75 | 2226 | +21.8 |
| 3 | Heiserman, Jimmy | 2138 | USA | +6N | +9B | +16N | −1B | 3.0 | 7.5 | 8.5 | 5.00 | 2069 | -5.2 |
| 4 | Horowitz, Phineas F | 1848 | USA | =10B | +22N | +18B | =5N | 3.0 | 5.5 | 5.5 | 3.25 | 2045 | +20.2 |
| 5 | Clemens, Kristian | 1876 | USA | +22B | −13N | +9N | =4B | 2.5 | 6.5 | 6.5 | 3.50 | 1911 | +3.6 |
| 6 | Parsons, Stephen | 1857 | USA | −3B | +14N | +13B | −2B | 2.0 | 8.0 | 9.5 | 3.00 | 1928 | +7.0 |
| 7 | Lewis, Edward | 1829 | USA | +12B | +11B | −2N | −8B | 2.0 | 7.5 | 9.5 | 4.00 | 1861 | +3.4 |
| 8 | Chen, Qinhong | 1917 | USA | −9B | +17N | −1B | +7N | 2.0 | 7.5 | 8.5 | 3.00 | 1815 | -10.8 |
| 9 | Viadiu-Ilarraza, Hector | 1774 | USA | +8N | −3N | −5B | +19B | 2.0 | 7.5 | 8.5 | 3.00 | 1926 | +14.6 |
| 10 | Sevall, Daniel | 1851 | USA | =4N | F | +20B | =11B | 2.0 | 6.0 | 6.0 | 3.50 | 2050 | +15.6 |
| 11 | Mercado, Adam | 1836 | USA | =14B | −7N | +21B | =10N | 2.0 | 5.5 | 5.5 | 1.75 | 1787 | -5.4 |
| 12 | Hasteer, Divija | 1726 | USA | −7N | −18N | +22B | +21N | 2.0 | 3.0 | 3.0 | 0.00 | 1810 | +18.0 |
| 13 | Walder, Michael | 1873 | USA | −20N | +5B | −6N | =15B | 1.5 | 6.0 | 7.0 | 3.25 | 1816 | -7.2 |
| 14 | Rigel, Marlon | 1737 | USA | =11N | −6B | −19N | +17B | 1.5 | 5.0 | 6.0 | 2.00 | 1717 | -2.6 |
| 15 | Kulkarni, Neil | 1788 | USA | F | F | +17B | =13N | 1.5 | 2.5 | 2.5 | 1.75 | 2004 | +22.8 |
| 16 | Diller, Bradley R | 1964 | USA | −2N | +20B | −3B | F | 1.0 | 7.5 | 7.5 | 1.00 | 1940 | -2.0 |
| 17 | Admassu, Yonathan | 1749 | USA | +19B | −8B | −15N | −14N | 1.0 | 5.0 | 6.0 | 1.00 | 1611 | -14.4 |
| 18 | Steger, Eric | 1909 | USA | F | +12B | −4N | F | 1.0 | 5.0 | 5.0 | 2.00 | 1787 | -6.4 |
| 19 | Melville, Cailen | 1774 | USA | −17N | F | +14B | −9N | 1.0 | 4.5 | 4.5 | 1.50 | 1628 | -11.6 |
| 20 | Smith, OliviaWFM | 2091 | WLS | +13B | −16N | −10N | F | 1.0 | 4.5 | 4.5 | 1.50 | 1771 | -25.0 |
| 21 | Rajaram, Raghu | 1732 | USA | −1B | F | −11N | −12B | 0.0 | 7.5 | 9.5 | 0.00 | 1023 | -22.8 |
| 22 | Perlov, Daniel | 1770 | USA | −5N | −4B | −12N | F | 0.0 | 7.5 | 7.5 | 0.00 | 1017 | -26.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Cawthon, Jeremy DavidUSA+33.03.5 pts · #1
- 2Kulkarni, NeilUSA+22.81.5 pts · #14
- 3Winslow, ElliottIMUSA+21.83.5 pts · #2
- 1Perlov, DanielUSA-26.20.0 pts · #22
- 2Smith, OliviaWFMWLS-25.01.0 pts · #19
- 3Rajaram, RaghuUSA-22.80.0 pts · #21
- R3+240 Elo gap
- R4+230 Elo gap
- R1+143 Elo gap