Back to Top

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.

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 Aryan Balyan 15273590 2232               0.0
2 IM Elliott Winslow 10363365 2207               0.0
3 Christopher Timothy Atkeson 17080462 2103               0.0
4 Quincy Chen 13716492 2050               0.0
5 Sudarshan Seshadri 12906250 2010       H--- H---     0.0
6 Kyle Chan 30063365 1997               0.0
7 Edward Lewis 12601629 1979               0.0
8 Stephen Parsons 16566932 1966               0.0
9 Kristian Clemens 13901075 1941   H---         H--- 0.0
10 Phineas F Horowitz 14209057 1931               0.0
11 Daniel Sevall 12811060 1930             H--- 0.0
12 Neil Kulkarni 16246077 1926               0.0
13 Cailen Jeremiah Melville 14006141 1925               0.0
14 Roger Christopher Smith 14437543 1891               0.0
15 Yonathan Admassu 15323127 1851               0.0
16 Raghu Rajaram 12698822 1839               0.0
17 Aron Sarmasi 32263284 1829               0.0
18 Daniel Robert Perlov 16465203 1826               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 Hayes Alexander Marvin 30636603 1922               0.0
2 Frederic Dutter 12343420 1900               0.0
3 Robert Crompton 31442886 1796               0.0
4 Christopher Powers 30462548 1769       H---       0.0
5 Hoa Long Tam 16919862 1721               0.0
6 Nicholas Morello 31114079 1712       H--- H---     0.0
7 Phil Ploquin 12535882 1709               0.0
8 Gagik Babayan 15695454 1684               0.0
9 John Boyer 16865157 1671       H---       0.0
10 David Siegel 12595160 1631               0.0
11 Isaac S Mays-Smith 30338290 1615               0.0
12 Charlie Schaezlein 31629140 1610               0.0
13 Nick, Jr Casares 10424364 1600               0.0
14 Nursultan Uzakbaev 17137317 1590               0.0
15 John Chan 12561007 1538               0.0
16 Sawyer Stults 31608516 1537               0.0
17 Eric Liu 12929670 1524               0.0
18 Calvin Dees 30307126 1518       H---       0.0
19 Joseph Karwat 16761266 1487     H---         0.0
20 Zachary Wickliffe 32140128 1480               0.0
21 David Paul Toczyski 30713291 1455 H---             0.0
22 Paul Henry Reed 13373197 1455       H---       0.0
23 Sacha Marino Sloan 32301287 1433 H---             0.0
24 Christian Brickhouse 30261226 1410 H--- H---       H---   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               0.0
2 Albert Martin Starr 12844781 1500               0.0
3 Soham Mehta 30525452 1407               0.0
4 Andrew Braithwaite 31237898 1392       H---       0.0
5 Dominic A Vazquez 30703139 1388       H---       0.0
6 Milan Patel 30830536 1380               0.0
7 Robert Turner 12407483 1341   H---   H---   H---   0.0
8 Alexander Borisovich Menchtchikov 32554854 1338               0.0
9 William Fitzgerald 17048414 1336 H---             0.0
10 Ummon Karpe 12932259 1331 H--- H---           0.0
11 Bryan D Martin 14691010 1264 H---             0.0
12 Thu Anh Le 17248797 1247           H--- H--- 0.0
13 Danny Du Uy Cao 16939797 1159               0.0
14 Shaikat Hossain 17207363 1141       H---       0.0
15 Mason Tobias 32440186 1135 H---             0.0
16 Steven Lee Myers 30700928 1130               0.0
17 Renate Otterbach 14565208 1116               0.0
18 Alexander Kojevnikov 31856555 1110               0.0
19 John Pirone 30758788 992   H---           0.0
20 Tristan Saucedo 30981868 unr.       H---       0.0
21 Kyle Weaver 32642649 unr.               0.0
22 Andrew Burkett Rosston 32504699 unr.     H---         0.0
23 Patrick McCollum 11090519 unr.               0.0
24 Sebastian Chodakowski 32591442 unr.               0.0

 

Pairings

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

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