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Archived Tournament

2026 Spring Tuesday Night Marathon

Welcome to our new website!
If you notice anything missing or in need of an update, feel free to let us know at chessroom@milibrary.org. We appreciate your feedback!

Top games are broadcasted on Chess.com with a 15-min delay:

https://www.chess.com/events/2026-spring-tuesday-night-marathon
 

Pre-TNM lecture schedule:

Mar 3: NM Daniel Cremisi

Mar 10: IM Elliott Winslow

Mar 17: Falconer Award Ceremony and lecture by this year's co-winner FM Shawnak Shivakumar!
Lecture title: "My Immortal Game — An Evening with FM Shawnak Shivakumar"
 

Mar 24: IM Elliott Winslow

Mar 31: NM Daniel Cremisi

Apr 7: Falconer Award co-winner FM Henry Deng!

Apr 14: NM Daniel Cremisi


Register or Join Wait List Change Request Form

Info

  • Date: Tue, Mar 3 - Tue, Apr 14, 2026
  • Eligibility: Open to Everyone!
  • Rating: USCF & FIDE
  • Location: Mechanics' Institute, 4th Floor, 57 Post Street, San Francisco, CA 94104
  • Capacity: 120

Registration

  • Online Registration Open Until: Tuesday, April 14: 6:30 pm
  • Entry fee for Mechanics' Institute Members: $70
    • Play-up fee: $15
  • Entry fee for Non-Members: $100
    • Play-up fee: $20
  • Late fee: $10
  • $5 admin fee for all cancellations & refunds.

Two ways to check your entries:

  • Check the live entries on the Jumbula site by clicking on the View Entries button.
  • Check the processed entries here a day before the event.

 

Tournament Format

  • Tournament Format: Swiss System
  • Total Rounds: 7
  • Time control: 90 min basetime + 30 sec increment
  • Round Times: 3/3 6:30pm 3/10 6:30pm 3/17 6:30pm 3/24 6:30pm 3/31 6:30pm 4/7 6:30pm 4/14 6:30pm
  • Sections: 2000+ 1600-1999 Under1600

Play-up "200-rating point rule":

  • Players must have an 1800 USCF regular supplemental or actual regular rating to be eligible to play up to the 2000+ section.
  • Players must have a 1400 USCF regular supplemental or actual regular rating to be eligible to play up to the 1600-1999 section.

US Chess rating will be used for section determination and pairings.  FIDE or other ratings are only used if no US Chess rating is available. 

Pairings are based on the March 2026 regular supplemental regular US Chess rating.

 

Prize Fund

Total Prize Fund: $2,400

  • Prize explanations are coming after the event.
  • Please allow 2-3 weeks for processing prize checks.
  • Per IRS rules anyone with a cumulative $600+ prize in any calendar year will need to fill out a W9 and Mechanics' Institute will be providing a 1099 form. 

 

  • Prize Fund:

    • $2400 based on 80 paid entries
    • Actual Payout: $2400 based on 80 fully paid entries - 100% payout
  2000+ 1600-1999 u1600
  Projected Actual Projected Actual Projected Actual
1st Place $500 $500 $300 $300 $200 $200
2nd Place $300 $300 $200 $200 $100 $100
3rd Place $200 $200 $100 $100 $50 $50
Best under2200 $100 $100        
Best under2000 $100 $100        
Best under1800     $75 $75    
Best under1600     $75 $75    
Best under1400         $50 $50
Best under1200         $50 $50

 

 

Byes

Byes are available for players in any rounds if they can't participate that evening but would like to stay in the tournament.

  • A maximum of three half-point byes can be requested in this tournament.

  • Round 1 pairings will be done on Tuesday at 6:20 pm onsite. If you need a Round 1 bye, please email us by 4:00 pm.

  • Round 2-6 byes must be requested before the pairing of the round by Monday, 6 pm. Pairings usually are posted shortly after 8 pm on Monday, the day before the round.

  • Round 7 bye must be requested before the start of Round 5. Round 7 bye is irrevocable to prevent possible prize-fund manipulations.
  • Late registrations will receive a half-point bye for any missed round, up to three rounds.
     

Eligibility

Tournament Rules

  • Forfeit time:
    • 30 minutes without prior notice
    • 60 minutes with prior notice. Please email to chessroom@milibrary.org or call us to request this!
      A player will be awarded a forfeit win against any opponent who doesn't show up according to the prescribed rules, and every effort will be made to find that player an extra game.
  • We provide clocks and set it up for players.
  • Games will be US Chess and FIDE regular rated. Modified FIDE rules apply.
     
  • What do the time controls mean?
    Time controls tell you how much time you have for each game.
    G90+30 means game in 90 minutes with a 30-second increment with each move. This means you get 90 minutes, your opponent gets 90 minutes, and with each move players get 30 seconds added to their clock.


Mechanics' Institute Chess Club reserves the right to update any details of this event (including but not limited to sections, time control, round times, prize fund, etc.) as we get closer to the event date to ensure an excellent tournament experience for players.

Rounds

  • Download Round 1 as PGN Watch Replay of Round 1
  • Download Round 2 as PGN Watch Replay of Round 2
  • Download Round 3 as PGN Watch Replay of Round 3
  • Download Round 4 as PGN Watch Replay of Round 4
  • Download Round 5 as PGN Watch Replay of Round 5

Rounds are starting on time at Mechanics' so be sure to be on time. Clocks will not be delayed in starting for any reason.

For pgn files and to replay the games via a pgn viewer, please see above.

Round 1 in pdf

Round 2 in pdf.

Round 3 in pdf.

Round 4 in pdf.

Round 5 in pdf.

Standings

Standings are updated after each round.

SwissSys 11.79.7 - Standings. 2026 Spring Tuesday Night Marathon: 2000+

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 Jimmy Heiserman 12799690 2254 W23 W5 W15 W3 L2 W7 H--- 5.0
2 WFM Natalya Tsodikova 12634942 2245 D16 W17 H--- W5 W1 W9 H--- 5.0
3 Bradley R Diller 10079993 2122 W10 W9 W4 L1 D8 W11   4.5
4 Jeremy David Cawthon 15038608 2105 W11 W18 L3 L8 W24 W15   4.0
5 Andrew Zavgorodniy 32143889 2042 W24 L1 W16 L2 W23 W8   4.0
6 Neil Kulkarni 16246077 1952 D7 H--- W14 D15 W18 H---   4.0
7 IM Elliott Winslow 10363365 2237 D6 W27 D8 W24 H--- L1   3.5
8 Phillip Seitzer 12687814 2025 D17 W25 D7 W4 D3 L5   3.5
9 Sudarshan Seshadri 12906250 2000 W19 L3 D18 W10 W21 L2   3.5
10 Edward Lewis 12601629 1927 L3 D19 W27 L9 W20 X18   3.5
11 Phineas F Horowitz 14209057 1925 L4 W13 W20 H--- W15 L3   3.5
12 Chase Wang 15015852 1898 L15 L22 W13 D20 W25 W24   3.5
13 Stephen Parsons 16566932 2010 L18 L11 L12 B--- X27 W22   3.0
14 Christopher Powers 30462548 1819 H--- H--- L6 D17 D19 W21   3.0
15 Quincy Chen 13716492 2097 W12 W20 L1 D6 L11 L4   2.5
16 Hector Viadiu-Ilarraza 12586903 1959 D2 W21 L5 L18 H--- H--- H--- 2.5
17 Marlon Rigel 30206555 1862 D8 L2 D21 D14 H--- H--- H--- 2.5
18 Divija Hasteer 13975247 1847 W13 L4 D9 W16 L6 F10 H--- 2.5
19 Daniel Sevall 12811060 1827 L9 D10 D25 L21 D14 X27   2.5
20 Daniel Robert Perlov 16465203 1805 W22 L15 L11 D12 L10 W25   2.5
21 Patrick M McCollum 11040519 2000 D25 L16 D17 W19 L9 L14   2.0
22 Michael Walder 10345120 1995 L20 W12 L24 H--- H--- L13   2.0
23 Kristian Clemens 13901075 1993 L1 L24 H--- X27 L5 H---   2.0
24 Cailen Jeremiah Melville 14006141 1868 L5 W23 W22 L7 L4 L12   2.0
25 Calvin Dees 30307126 1841 D21 L8 D19 H--- L12 L20 H--- 1.5
26 Raghu Rajaram 12698822 1883 H--- U--- U--- U--- U--- U---   0.5
27 Eric Steger 12358270 1865 H--- L7 L10 F23 F13 F19   0.5

SwissSys 11.79.7 - Standings. 2026 Spring Tuesday Night Marathon: 1600-1999

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 Frederic Dutter 12343420 1900 W15 D7 D14 D11 X26 W2 H--- 4.5
2 Richard V Finacom 11452728 1822 D17 W30 W20 W28 W5 L1   4.5
3 Nazaret Ramirez 32866278 1800 W18 W33 L5 X14 H--- W16   4.5
4 John Boyer 16865157 1761 L33 W18 W32 W34 D16 W5   4.5
5 Mikhail Chernobilskiy 12878856 1775 W9 W13 W3 W7 L2 L4   4.0
6 Zachary Wickliffe 32140128 1711 W19 D24 L28 W27 D17 W11   4.0
7 Hoa Long Tam 16919862 1656 W27 D1 X12 L5 W15 H---   4.0
8 William Milliken 11217109 1638 D23 D29 D27 W22 X24 H--- H--- 4.0
9 Daniel J Sisti 12734121 1565 L5 W37 H--- X36 H--- W23   4.0
10 Andre Persids 12545869 1716 H--- X--- D24 L16 H--- W30   3.5
11 Gagik Babayan 15695454 1698 L20 W38 W33 D1 W28 L6   3.5
12 Nicholas James Latourette 12779071 1676 H--- W35 F7 H--- W20 H--- U--- 3.5
13 David Siegel 12595160 1653 W38 L5 L34 W33 D30 W27   3.5
14 Dev Isak Kosuri 31395538 1639 D22 W21 D1 F3 H--- X26   3.5
15 Isaac S Mays-Smith 30338290 1626 L1 W19 D30 W21 L7 W28   3.5
16 Venkatagiri Acharya 15616537 1608 H--- H--- W29 W10 D4 L3   3.5
17 Tao Ni 30260481 1587 D2 D23 D36 W31 D6 H---   3.5
18 Bennett McCutcheon 30503085 1565 L3 L4 D38 W37 W25 D19   3.0
19 John Chan 12561007 1527 L6 L15 W37 D32 W31 D18   3.0
20 Sacha Marino Sloan 32301287 1522 W11 H--- L2 H--- L12 W33   3.0
21 Dominic A Vazquez 30703139 1454 H--- L14 W35 L15 H--- W34   3.0
22 Kyle Ewart Coventry Booth 30715175 1434 D14 D32 H--- L8 H--- W35   3.0
23 Thu Anh Le 17248797 1419 D8 D17 L26 W38 W34 L9   3.0
24 William Fitzgerald 17048414 1413 B--- D6 D10 H--- F8 H---   3.0
25 Phil Ploquin 12535882 1664 H--- F28 H--- H--- L18 W37   2.5
26 Sarina Motwani 14944251 1528 H--- H--- W23 H--- F1 F14   2.5
27 Sawyer Stults 31608516 1521 L7 B--- D8 L6 W32 L13   2.5
28 Cibran Anton De La Fuente Álvarez 32830874 1481 H--- X25 W6 L2 L11 L15   2.5
29 Christian Brickhouse 30261226 1429 H--- D8 L16 H--- F33 B---   2.5
30 Milan Patel 30830536 1414 W37 L2 D15 H--- D13 L10   2.5
31 Nicholas Morello 31114079 1750 H--- D34 H--- L17 L19 H---   2.0
32 David Paul Toczyski 30713291 1582 H--- D22 L4 D19 L27 H---   2.0
33 Nursultan Uzakba 17137317 1558 W4 L3 L11 L13 X29 L20   2.0
34 Samuel Agdamag 14874734 1528 H--- D31 W13 L4 L23 L21   2.0
35 Dahlia Quinn 30654447 1522 H--- L12 L21 H--- W38 L22   2.0
36 Abel Talamantez 12465386 1800 H--- H--- D17 F9 U--- U---   1.5
37 Nick Casares 10424364 1637 L30 L9 L19 L18 B--- L25   1.0
38 Andrew Braithwaite 31237898 1453 L13 L11 D18 L23 L35 H--- H--- 1.0
39 Carl Anthony Pickering 30689170 1783 H--- U--- U--- U--- U--- U---   0.5

SwissSys 11.79.7 - Standings. 2026 Spring Tuesday Night Marathon: U1600

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 Connor Harriman 31650582 1396 H--- U--- W20 W25 W12 X13   4.5
2 Neel Gore 30176757 1362 W15 L4 W23 W6 H--- W10   4.5
3 Keshav V Raman 30692470 1167 H--- H--- W24 W19 W10 D4   4.5
4 Andrew Burkett Rosston 32504699 1121 W7 W2 F10 W11 W9 D3   4.5
5 Richard Hack 12796129 1500 L10 W21 X22 D12 D13 W11   4.0
6 Ummon Karpe 12932259 1301 W26 D10 W7 L2 W14 H--- H--- 4.0
7 Romeo Belmes Barreyro 17018168 1500 L4 W15 L6 W17 D16 W18   3.5
8 Albert Martin Starr 12844781 1500 L20 W17 L13 D16 W25 W19   3.5
9 Bryan D Martin 14691010 1205 W23 W24 W19 L10 L4 H---   3.5
10 Kyle Weaver 32642649 1118 W5 D6 X4 W9 L3 L2   3.5
11 Robert Turner 12407483 1278 H--- W16 H--- L4 W20 L5 H--- 3.0
12 Danny Du Uy Cao 16939797 1272 H--- W25 H--- D5 L1 D20   3.0
13 Merlin Ethan Mackley 31277598 1140 F27 W26 W8 H--- D5 F1   3.0
14 John Pirone 30758788 1061 H--- W18 H--- H--- L6 D16   3.0
15 Mixtli Carter 32876831 961 L2 L7 L25 B--- W22 W23   3.0
16 Braxton Wardle 31661706 390 H--- L11 W21 D8 D7 D14   3.0
17 Harvey Ching 31774953 unr. L19 L8 W26 L7 W21 W24   3.0
18 Alexander Robins 31932004 1387 H--- L14 H--- W23 H--- L7   2.5
19 Mason Tobias 32440186 1276 W17 W20 L9 L3 H--- L8   2.5
20 Alexander Kojevnikov 31856555 1069 W8 L19 L1 W22 L11 D12   2.5
21 Paul Blum 12748433 1002 D25 L5 L16 W26 L17 B---   2.5
22 Aaron Gulevich 32794524 unr. H--- H--- F5 L20 L15 W25   2.0
23 Steven Jessup 32750380 unr. L9 B--- L2 L18 W26 L15   2.0
24 Valeria Starkova 32893252 unr. B--- L9 L3 H--- H--- L17   2.0
25 Clarence Harris 12543396 1400 D21 L12 W15 L1 L8 L22   1.5
26 Stephen L Wilson 12584515 779 L6 L13 L17 L21 L23 H--- H--- 0.5
27 Abhinav Ketineni 13235136 unr. F13 U--- U--- U--- U--- U---   0.0

SwissSys 11.79.7 - Standings. 2026 Spring Tuesday Night Marathon: Extra Rated

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Total
1 Lucas Foerster-Yialamas 15056077 2216 U--- U--- W8 U--- 1.0
2 Stephen Parsons 16566932 2010 U--- U--- W11 U--- 1.0
3 Nazaret Ramirez 32866278 1800 U--- U--- W9 U--- 1.0
4 Hoa Long Tam 16919862 1656 U--- W10 U--- U--- 1.0
5 William Fitzgerald 17048414 1413 W12 U--- U--- U--- 1.0
6 Daniel Sevall 12811060 1827 U--- U--- U--- D7 0.5
7 Dev Isak Kosuri 31395538 1639 U--- U--- U--- D6 0.5
8 Kristian Clemens 13901075 1993 U--- U--- L1 U--- 0.0
9 Daniel J Sisti 12734121 1565 U--- U--- L3 U--- 0.0
10 Kyle Weaver 32642649 1118 U--- L4 U--- U--- 0.0
11 Christopher De Firmian 30277917 unr. U--- U--- L2 U--- 0.0
12 Valeria Starkova 32893252 unr. L5 U--- U--- U--- 0.0

 

Pairings

Round 2-7 pairings are posted on Monday by 8pm.  Turn in Bye request by Monday at 6:00 PM!

 

SwissSys Report: 2026 Spring Tuesday Night Marathon

SwissSys Report: 2026 Spring Tuesday Night Marathon

SwissSys Report: 2026 Spring Tuesday Night Marathon

SwissSys Report: 2026 Spring Tuesday Night Marathon

Pairings for Round 4. 2026 Spring Tuesday Night Marathon: Extra Rated

Bd Res White Res Black
49 ½ Daniel Sevall (1827 - 0.0) ½ Dev Isak Kosuri (1639 - 0.0)