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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 IM Elliott Winslow

11/25 NM Daniel Cremisi

12/2 NM Daniel Cremisi

12/9 Lauren Goodkind

12/16 GM Sam Shankland


Register or Join Wait List Change Request Form

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
  • Download Round 2 as PGN Watch Replay of Round 2
  • Download Round 3 as PGN Watch Replay of Round 3

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.

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 Eilon Lavi 16731183 2120 W25 W12 W5     H--- H--- 3.0
2 WFM Natalya Tsodikova 12634942 2246 H--- W22 W17         2.5
3 Quincy Chen 13716492 2050 D17 W23 W11         2.5
4 Aadit Bhatia 16689603 2246 W7 D9 H--- H---       2.0
5 IM Elliott Winslow 10363365 2207 W8 W18 L1         2.0
6 Abhishek Mallela 12888811 2127 H--- H--- W20 H---       2.0
7 Stephen Parsons 16566932 1966 L4 W25 W22         2.0
8 Phineas F Horowitz 14209057 1931 L5 W21 W23         2.0
9 Raghu Rajaram 12698822 1839 W19 D4 D10         2.0
10 Aryan Balyan 15273590 2232 D20 D15 D9   H--- H--- H--- 1.5
11 Christopher Timothy Atkeson 17080462 2103 D16 W24 L3         1.5
12 Sudarshan Seshadri 12906250 2010 W21 L1 D16 H--- H---     1.5
13 Patrick M McCollum 11040519 2000 L22 D16 W24         1.5
14 Edward Lewis 12601629 1979 D23 L17 W25         1.5
15 Michael Walder 10345120 1944 H--- D10 D18         1.5
16 Neil Kulkarni 16246077 1926 D11 D13 D12         1.5
17 Cailen Jeremiah Melville 14006141 1925 D3 W14 L2         1.5
18 Daniel Robert Perlov 16465203 1826 B--- L5 D15         1.5
19 Kyle Chan 30063365 1997 L9 H--- H---         1.0
20 Kristian Clemens 13901075 1941 D10 H--- L6       H--- 1.0
21 Roger Christopher Smith 14437543 1891 L12 L8 W26         1.0
22 Yonathan Admassu 15323127 1851 W13 L2 L7         1.0
23 Aron Sarmasi 32263284 1829 D14 L3 L8         0.5
24 Naga Abhiram Ponnaluri 17010328 1822 H--- L11 L13         0.5
25 Daniel Sevall 12811060 1930 L1 L7 L14       H--- 0.0
26 John Chan 12561007 1538 U--- U--- L21         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 Calvin Dees 30307126 1518 W14 W12 W5 H---     H--- 3.0
2 Michael Cafiero 31431203 1806 W27 D3 W18         2.5
3 John Boyer 16865157 1671 W9 D2 W11 H---       2.5
4 Hayes Alexander Marvin 30636603 1922 D8 W24 D6         2.0
5 Christopher Powers 30462548 1769 W22 W17 L1 H---       2.0
6 Nicholas Morello 31114079 1712 D16 W25 D4 H---     H--- 2.0
7 Nicholas James Latourette 12779071 1634 H--- D23 W21 H---       2.0
8 Isaac S Mays-Smith 30338290 1615 D4 H--- W24         2.0
9 Zachary Wickliffe 32140128 1480 L3 B--- W19         2.0
10 Christian Brickhouse 30261226 1410 H--- H--- W23     H---   2.0
11 Frederic Dutter 12343420 1900 W20 H--- L3         1.5
12 Robert Crompton 31442886 1796 W26 L1 H---         1.5
13 Hoa Long Tam 16919862 1721 D23 L18 W26         1.5
14 Phil Ploquin 12535882 1709 L1 D20 W27         1.5
15 Gagik Babayan 15695454 1684 L17 W27 D16         1.5
16 Eric Liu 12929670 1524 D6 D21 D15         1.5
17 Joseph Karwat 16761266 1487 W15 L5 H---         1.5
18 David Paul Toczyski 30713291 1455 H--- W13 L2         1.5
19 David Siegel 12595160 1631 L24 W22 L9         1.0
20 Charlie Schaezlein 31629140 1610 L11 D14 D25         1.0
21 Daniel J Sisti 12734121 1579 H--- D16 L7   H---     1.0
22 John Chan 12561007 1538 L5 L19 B---         1.0
23 Sawyer Stults 31608516 1537 D13 D7 L10         1.0
24 Paul Henry Reed 13373197 1455 W19 L4 L8 H---       1.0
25 Sacha Marino Sloan 32301287 1433 H--- L6 D20         1.0
26 Nursultan Uzakbaev 17137317 1590 L12 H--- L13         0.5
27 Nick, Jr Casares 10424364 1600 L2 L15 L14         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 Alexander Borisovich Menchtchikov 32554854 1338 W16 W10 W11         3.0
2 Richard Hack 12796129 1504 W28 W20 H---         2.5
3 Soham Mehta 30525452 1407 W15 X24 D4         2.5
4 Andrew Braithwaite 31237898 1392 W25 W8 D3 H---       2.5
5 Milan Patel 30830536 1380 D26 W17 W14         2.5
6 William Fitzgerald 17048414 1336 H--- W13 W19         2.5
7 Alexander Robins 31932004 1268 H--- H--- W20         2.0
8 Carlos Galvez 30263086 1247 W22 L4 W24         2.0
9 Thu Anh Le 17248797 1247 L17 W25 W22     H--- H--- 2.0
10 Danny Du Uy Cao 16939797 1159 W27 L1 W18         2.0
11 Robert Turner 12407483 1341 W21 H--- L1 H---   H---   1.5
12 Ummon Karpe 12932259 1331 H--- H--- H---         1.5
13 Bryan D Martin 14691010 1264 H--- L6 B---         1.5
14 Mason Tobias 32440186 1135 W18 H--- L5         1.5
15 Steven Lee Myers 30700928 1130 L3 D27 W26         1.5
16 John Pirone 30758788 992 L1 H--- W27         1.5
17 Kyle Weaver 32642649 unr. W9 L5 H---         1.5
18 Albert Martin Starr 12844781 1500 L14 W26 L10         1.0
19 Dominic A Vazquez 30703139 1388 L20 W21 L6 H---       1.0
20 Renate Otterbach 14565208 1116 W19 L2 L7 H---       1.0
21 Paul Blum 12748433 1034 L11 L19 X28         1.0
22 Tristan Saucedo 30981868 947 L8 W28 L9 H---       1.0
23 Kate Canessa 14102056 560 H--- U--- H---         1.0
24 Branum Spliethof 32661549 unr. B--- F3 L8         1.0
25 Andrew Burkett Rosston 32504699 1118 L4 L9 H---         0.5
26 Alexander Kojevnikov 31856555 1110 D5 L18 L15         0.5
27 Sebastian Chodakowski 32591442 unr. L10 D15 L16 H---       0.5
28 Shaikat Hossain 17207363 1141 L2 L22 F21 H---       0.0

 

 

Pairings

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

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

Pairings for Round 4. 2025 Winter Tuesday Night Marathon: 2000+

Bd Res White Res Black
1   WFM Natalya Tsodikova (2246 2.5)   Eilon Lavi (2120 3.0)
2   IM Elliott Winslow (2207 2.0)   Quincy Chen (2050 2.5)
3   Raghu Rajaram (1839 2.0)   Phineas F Horowitz (1931 2.0)
4   Michael Walder (1944 1.5)   Stephen Parsons (1966 2.0)
7   Daniel Robert Perlov (1826 1.5)   Edward Lewis (1979 1.5)
8   Kristian Clemens (1941 1.0)   Patrick M McCollum (2000 1.5)
9   Cailen Jeremiah Melville (1925 1.5)   Neil Kulkarni (1926 1.5)
10   Yonathan Admassu (1851 1.0)   Roger Christopher Smith (1891 1.0)
11   Aron Sarmasi (1829 0.5)   Naga Abhiram Ponnaluri (1822 0.5)
  1 Daniel Sevall (1930 0.0)   BYE
  ½ Abhishek Mallela (2127 2.0)   BYE
  ½ Aadit Bhatia (2246 2.0)   BYE
  ½ Christopher Timothy Atkeson (2103 1.5)   BYE
  ½ Kyle Chan (1997 1.0)   BYE
  ½ Aryan Balyan (2232 1.5)   BYE
  ½ Sudarshan Seshadri (2010 1.5)   BYE

 

Pairings for Round 4. 2025 Winter Tuesday Night Marathon: 1600-1999

Bd Res White Res Black
5   Isaac S Mays-Smith (1615 2.0)   Christian Brickhouse (1410 2.0)
12   Gagik Babayan (1684 1.5)   Frederic Dutter (1900 1.5)
13   Robert Crompton (1796 1.5)   Bennet McCutcheon (1617 1.5)
14   Hoa Long Tam (1721 1.5)   Eric Liu (1524 1.5)
15   Joseph Karwat (1487 1.5)   Phil Ploquin (1709 1.5)
16   Charlie Schaezlein (1610 1.0)   David Paul Toczyski (1455 1.5)
17   John Chan (1538 1.0)   Sacha Marino Sloan (1433 1.0)
18   Daniel J Sisti (1579 1.0)   Nursultan Uzakbaev (1590 0.5)
  1 Nick, Jr Casares (1600 0.0)   BYE
  ½ Nicholas James Latourette (1634 2.0)   BYE
  ½ Calvin Dees (1518 3.0)   BYE
  ½ Michael Cafiero (1806 2.5)   BYE
  ½ John Boyer (1671 2.5)   BYE
  ½ Christopher Powers (1769 2.0)   BYE
  ½ Hayes Alexander Marvin (1922 2.0)   BYE
  ½ David Siegel (1631 1.0)   BYE
  ½ Paul Henry Reed (1455 1.0)   BYE
  ½ Nicholas Morello (1712 2.0)   BYE
  ½ Zachary Wickliffe (1480 2.0)   BYE
  ½ Sawyer Stults (1537 1.0)   BYE

 

Pairings for Round 4. 2025 Winter Tuesday Night Marathon: u1600

Bd Res White Res Black
6   Alexander Borisovich Menchtchikov (1338 3.0)   Soham Mehta (1407 2.5)
19   Milan Patel (1380 2.5)   William Fitzgerald (1336 2.5)
20   Alexander Robins (1268 2.0)   Thu Anh Le (1247 2.0)
21   Carlos Galvez (1247 2.0)   Danny Du Uy Cao (1159 2.0)
22   Ummon Karpe (1331 1.5)   Steven Lee Myers (1130 1.5)
23   John Pirone ( 992 1.5)   Bryan D Martin (1264 1.5)
24   Kyle Weaver (unr. 1.5)   Mason Tobias (1135 1.5)
25   Kate Canessa ( 560 1.0)   Albert Martin Starr (1500 1.0)
26   Paul Blum (1034 1.0)   Branum Spliethof (unr. 1.0)
27   Alexander Kojevnikov (1110 0.5)   Andrew Burkett Rosston (1118 0.5)
  ½ Robert Turner (1341 1.5)   BYE
  ½ Andrew Braithwaite (1392 2.5)   BYE
  ½ Richard Hack (1504 2.5)   BYE
  ½ Tristan Saucedo ( 947 1.0)   BYE
  ½ Renate Otterbach (1116 1.0)   BYE
  ½ Dominic A Vazquez (1388 1.0)   BYE
  ½ Sebastian Chodakowski (unr. 0.5)   BYE
  ½ Shaikat Hossain (1141 0.0)   BYE