Back to Top
Archived Tournament

2025 Winter 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/2025-mechanics-institute-tuesday-night-marathon-winter/games

 

Pre-TNM lecture schedule:

11/4 NM Daniel Cremisi

11/11 IM Elliott Winslow

11/18 Lauren Goodkind

11/25 NM Daniel Cremisi

12/2 IM Elliott Winslow

12/9 TBA

12/16 TBA


Register or Join Wait List

Info

  • Date: Tue, Nov 4 - Tue, Dec 16, 2025
  • 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, December 16: 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: 11/4 6:30pm 11/11 6:30pm 11/18 6:30pm 11/25 6:30pm 12/2 6:30pm 12/9 6:30pm 12/16 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 Nov 2025 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: coming after the tournament ended.
  2000+ 1600-1999 u1600
  Projected Actual Projected Actual Projected Actual
1st Place $500   $300   $200  
2nd Place $300   $200   $100  
3rd Place $200   $100   $50  
Best under2200 $100          
Best under2000 $100          
Best under1800     $75      
Best under1600     $75      
Best under1400         $50  
Best under1200         $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

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.

Standings

Standings are updated after each round.

SwissSys Standings. 2025 Winter Tuesday Night Marathon: 2000+

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 Aadit Bhatia 16689603 2246 W21             1.0
2 IM Elliott Winslow 10363365 2207 W22             1.0
3 Eilon Lavi 16731183 2120 W23         H--- H--- 1.0
4 Sudarshan Seshadri 12906250 2010 W24     H--- H---     1.0
5 Yonathan Admassu 15323127 1851 W19             1.0
6 Raghu Rajaram 12698822 1839 W20             1.0
7 Daniel Robert Perlov 16465203 1826 B---             1.0
8 WFM Natalya Tsodikova 12634942 2246 H---             0.5
9 Aryan Balyan 15273590 2232 D14             0.5
10 Christopher Timothy Atkeson 17080462 2103 D15             0.5
11 Quincy Chen 13716492 2050 D16             0.5
12 Edward Lewis 12601629 1979 D17             0.5
13 Michael Walder 10345120 1944 H---             0.5
14 Kristian Clemens 13901075 1941 D9 H---         H--- 0.5
15 Neil Kulkarni 16246077 1926 D10             0.5
16 Cailen Jeremiah Melville 14006141 1925 D11             0.5
17 Aron Sarmasi 32263284 1829 D12             0.5
18 Naga Abhiram Ponnaluri 17010328 1822 H---             0.5
19 Patrick M McCollum 11040519 2000 L5             0.0
20 Kyle Chan 30063365 1997 L6             0.0
21 Stephen Parsons 16566932 1966 L1             0.0
22 Phineas F Horowitz 14209057 1931 L2             0.0
23 Daniel Sevall 12811060 1930 L3           H--- 0.0
24 Roger Christopher Smith 14437543 1891 L4             0.0

SwissSys Standings. 2025 Winter 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 W22             1.0
2 Michael Cafie 31431203 1806 W23             1.0
3 Robert Crompton 31442886 1796 W24             1.0
4 Christopher Powers 30462548 1769 W25     H---       1.0
5 John Boyer 16865157 1671 W26     H---       1.0
6 Calvin Dees 30307126 1518 W19     H---       1.0
7 Joseph Karwat 16761266 1487 W20   H---         1.0
8 Paul Henry Reed 13373197 1455 W21     H---       1.0
9 Hayes Alexander Marvin 30636603 1922 D12             0.5
10 Hoa Long Tam 16919862 1721 D14             0.5
11 Nicholas Morello 31114079 1712 D15     H--- H---     0.5
12 Isaac S Mays-Smith 30338290 1615 D9 H---           0.5
13 Daniel J Sisti 12734121 1579 H---       H---     0.5
14 Sawyer Stults 31608516 1537 D10             0.5
15 Eric Liu 12929670 1524 D11             0.5
16 David Paul Toczyski 30713291 1455 H---             0.5
17 Sacha Marino Sloan 32301287 1433 H---             0.5
18 Christian Brickho 30261226 1410 H--- H---       H---   0.5
19 Phil Ploquin 12535882 1709 L6             0.0
20 Gagik Babayan 15695454 1684 L7             0.0
21 David Siegel 12595160 1631 L8             0.0
22 Charlie Schaezlein 31629140 1610 L1             0.0
23 Nick, Jr Casares 10424364 1600 L2             0.0
24 Nursultan Uzakbaev 17137317 1590 L3             0.0
25 John Chan 12561007 1538 L4             0.0
26 Zachary Wickliffe 32140128 1480 L5             0.0

SwissSys Standings. 2025 Winter Tuesday Night Marathon: u1600

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 Richard Hack 12796129 1504 W20             1.0
2 Soham Mehta 30525452 1407 W21             1.0
3 Andrew Braithwaite 31237898 1392 W22     H---       1.0
4 Robert Turner 12407483 1341 W23 H---   H---   H---   1.0
5 Alexander Borisovich Menchtchikov 32554854 1338 W24             1.0
6 Carlos Galv 30263086 1247 W25             1.0
7 Danny Du Uy Cao 16939797 1159 W26             1.0
8 Mason Tobias 32440186 1135 W17             1.0
9 Renate Otterbach 14565208 1116 W18             1.0
10 Branum Spliethof 32661549 unr. B---             1.0
11 Kyle Weaver 32642649 unr. W19   H---         1.0
12 Milan Patel 30830536 1380 D16             0.5
13 William Fitzgerald 17048414 1336 H---             0.5
14 Ummon Karpe 12932259 1331 H--- H---           0.5
15 Bryan D Martin 14691010 1264 H---             0.5
16 Alexander Kojevnikov 31856555 1110 D12             0.5
17 Albert Martin Starr 12844781 1500 L8             0.0
18 Dominic A Vazquez 30703139 1388 L9     H---       0.0
19 Thu Anh Le 17248797 1247 L11         H--- H--- 0.0
20 Shaikat Hossain 17207363 1141 L1     H---       0.0
21 Steven Lee Myers 30700928 1130 L2             0.0
22 Andrew Burkett Rosston 32504699 1118 L3   H---         0.0
23 Paul Blum 12748433 1034 L4             0.0
24 John Pirone 30758788 992 L5 H---           0.0
25 Tristan Sauce 30981868 947 L6     H---       0.0
26 Sebastian Chodakowski 32591442 unr. L7             0.0

SwissSys Standings. 2025 Winter Tuesday Night Marathon: Extra Rated

# Name ID Rating Rd 1 Total
1 Daniel Robert Perlov 16465203 1826 W2 1.0
2 Branum Spliethof 32661549 unr. L1 0.0

 

Pairings

Round 1 pairings are available onsite at 6:15pm on Tuesday.

Round 2-7 pairings are posted on Monday around 8pm.

SwissSys Report: 2025 Winter Tuesday Night Marathon

Pairings for Round 1. 2025 Winter Tuesday Night Marathon: Extra Rated

Bd Res White Res Black
41 1 Daniel Robert Perlov (1826 - 0.0 ) 0 Branum Spliethof (unr. - 0.0 )

SwissSys Report: 2025 Winter Tuesday Night Marathon

Pairings for Round 1. 2025 Winter Tuesday Night Marathon: Extra Rated

Bd Res White Res Black
41 1 Daniel Robert Perlov (1826 - 0.0 ) 0 Branum Spliethof (unr. - 0.0 )