CChessStats

2026 Spring Tuesday Night Marathon - 2000 and Over Round 5-7

Open SwissStandard

23 players participated in this 3-round tournament, held from 31 Mar 2026 to 14 Apr 2026 in San Francisco, CA, United States. 2 titled players. Top 10 Elo average was 1967, and top seed was Natalia Tsodikova (🇺🇸 USA, WFM, 2123).

Andrew Zavgorodniy (🇺🇸 USA, 1874) won with 3.0/3, ahead of Jeremy David Cawthon (3.0) and Chase Wang (2.5). Zavgorodniy shared the lead from round 1, winning on tie-break.

The biggest upset came in round 3: Patrick M McCollum (1685) beat Kristian Clemens (1904), a +219-point gap.

Location
🇺🇸San Francisco, CA, United States
Dates
31 Mar 2026 → 14 Apr 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 3 rounds
Top seed
🇺🇸WFMNatalia Tsodikova2123
Avg top 10
1,967
Participants
23
Titled players · 2
IM×1
WFM×1
Federations · 1 represented
🇺🇸United States of America×23
Top 3

How it unfolded

Top 6 · 3 rounds

Tight race until R3; 2 players tied at 3.0/3, decided on Buchholz.

Co-leaders
8
4
2
11.52.53R1R2R3
Cawthon3Zavgorodniy3Wang2.5Tsodikova2Perlov2Powers1.5
R3 · TIEBREAK CLUSTER

2 players finish on 3.0/3. Zavgorodniy takes the title on Buchholz Cut1 (2.5).

WIN STREAKS · 2 top finishers

Jeremy David Cawthon 3 wins (R1–R3)Andrew Zavgorodniy 3 wins (R1–R3)

Grille américaine

#PlayerEloFedR1R2R3PtsBu C1BuSBPerfΔ
1Zavgorodniy, Andrew1874USA+21B+8B+6N3.02.52.52.502729+68.8
2Cawthon, Jeremy David1938USA+19B+10N+9B3.02.02.02.002625+20.8
3Wang, Chase1739USA+20B+19N=8B2.51.01.00.502142+60.4
4Tsodikova, NataliaWFM2123USA+13N+11BF2.02.02.02.002772+12.6
5Perlov, Daniel1720USA−9B+20N+16N2.02.02.01.001990+21.4
6Diller, Bradley R1972USA=8N+12B−1B1.54.05.01.501875-7.8
7Powers, Christopher1849USA=18N+14NF1.52.02.51.251902+2.4
8Seitzer, Phillip1912USA=6B−1N=3N1.05.57.02.001737-14.0
9Lewis, Edward1792USA+5NF−2N1.05.05.02.001829+2.0
10Chen, Qinhong1918USA−12N−2B+18N1.04.04.50.501712-16.4
11Seshadri, Sudarshan1856USA+14B−4N−15B1.03.04.01.001814-4.0
12Horowitz, Phineas F1840USA+10B−6NF1.03.04.01.001945+5.8
13Heiserman, Jimmy2087USA−4B+15NF1.03.03.01.002067-1.2
14McCollum, Patrick M1685USA−11N−7B+21N1.02.52.50.001745+4.6
15Winslow, ElliottIM2010USAF−13B+11N1.02.02.01.001972-2.0
16Parsons, Stephen1871USAF+23N−5B1.02.02.00.001794-4.0
17Kulkarni, Neil1804USA+22BFF1.00.00.00.002544+16.8
18Sevall, Daniel1732USA=7BF−10B0.52.52.50.751691-2.0
19Melville, Cailen1764USA−2N−3BF0.05.55.50.001039-16.0
20Dees, Calvin Django1931USA−3N−5BF0.04.54.50.00930-30.4
21Clemens, Kristian1904USA−1NF−14B0.04.04.00.00980-26.4
22Hasteer, Divija1744USA−17NFF0.02.02.00.001004-16.8
23Walder, Michael1868USAF−16BF0.01.01.00.001071-10.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets