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: 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
  • 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+

# Place Name Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 1-2 Jimmy Heiserman 2254 (2087) W25 W10 W11 W3 L2   H--- 4.0
2   WFM Natalya Tsodikova 2245 (2123) D16 W17 H--- W10 W1   H--- 4.0
3 3-8 Bradley R Diller 2122 (1972) W13 W5 W9 L1 D4     3.5
4   Phillip Seitzer 2025 (1912) D17 W24 D6 W9 D3     3.5
5   Sudarshan Seshadri 2000 (1856) W23 L3 D12 W13 W18     3.5
6   IM Elliott Winslow 2237 (2010) D7 W26 D4 W15 H---     3.5
7   Neil Kulkarni 1952 (1804) D6 H--- W20 D11 W12     3.5
8   Phineas F Horowitz 1925 (1840) L9 W19 W22 H--- W11     3.5
9 9-10 Jeremy David Cawthon 2105 (1938) W8 W12 L3 L4 W15     3.0
10   Andrew Zavgorodniy 2042 (1874) W15 L1 W16 L2 W25     3.0
11 11-14 Quincy Chen 2097 (1918) W14 W22 L1 D7 L8     2.5
12   Divija Hasteer 1847 (1744) W19 L9 D5 W16 L7   H--- 2.5
13   Edward Lewis 1927 (1792) L3 D23 W26 L5 W22     2.5
14   Chase Wang 1898 (1739) L11 L21 W19 D22 W24     2.5
15 15-21 Cailen Jeremiah Melville 1868 (1765) L10 W25 W21 L6 L9     2.0
16   Hector Viadiu-Ilarraza 1959 (1835) D2 W18 L10 L12 H--- H--- H--- 2.0
17   Marlon Rigel 1862 (1783) D4 L2 D18 D20 H--- H--- H--- 2.0
18   Patrick M McCollum 2000 (1685) D24 L16 D17 W23 L5     2.0
19   Stephen Parsons 2010 (1871) L12 L8 L14 B--- X26     2.0
20   Christopher Powers 1819 (1849) H--- H--- L7 D17 D23     2.0
21   Michael Walder 1995 (1868) L22 W14 L15 H--- H---     2.0
22 22-25 Daniel Robert Perlov 1805 (1720) W21 L11 L8 D14 L13     1.5
23   Daniel Sevall 1827 (1732) L5 D13 D24 L18 D20     1.5
24   Calvin Dees 1841 (1931) D18 L4 D23 H--- L14   H--- 1.5
25   Kristian Clemens 1993 (1904) L1 L15 H--- X26 L10 H---   1.5
26 26-27 Eric Steger 1865 (1863) H--- L6 L13 F25 F19     0.5
27   Raghu Rajaram 1883 (1708) H--- U--- U--- U--- U---     0.5

 

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

# Place Name Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 1 Richard V Finacom 1822 (1822) D10 W19 W27 W17 W2     4.5
2 2 Mikhail Chernobilskiy 1775 (1872) W13 W18 W8 W4 L1     4.0
3 3-9 Frederic Dutter 1900 (1764) W15 D4 D22 D7 X25   H--- 3.5
4   Hoa Long Tam 1656 (1709) W16 D3 X14 L2 W15     3.5
5   John Boyer 1761 (1797) L26 W20 W32 W28 D9     3.5
6   William Milliken 1638 (1811) D11 D34 D16 W30 X24 H--- H--- 3.5
7   Gagik Babayan 1698 (1755) L27 W38 W26 D3 W17     3.5
8   Nazaret Ramirez 1800 W20 W26 L2 X22 H---     3.5
9   Venkatagiri Acharya 1608 (1714) H--- H--- W34 W23 D5     3.5
10 10-14 Tao Ni 1587 (1573) D1 D11 D35 W33 D12 H---   3.0
11   Thu Anh Le 1419 (1527) D6 D10 L25 W38 W28     3.0
12   Zachary Wickliffe 1711 (1765) W21 D24 L17 W16 D10     3.0
13   Daniel J Sisti 1565 (1562) L2 W37 H--- X35 H---     3.0
14   Nicholas James Latourette 1676 (1749) H--- W31 F4 H--- W27 H--- U--- 3.0
15 15-25 Isaac S Mays-Smith 1626 (1765) L3 W21 D19 W29 L4     2.5
16   Sawyer Stults 1521 (1682) L4 B--- D6 L12 W32     2.5
17   Cibran Anton De La Fuente Álvarez 1481 H--- X36 W12 L1 L7     2.5
18   David Siegel 1653 (1727) W38 L2 L28 W26 D19     2.5
19   Milan Patel 1414 (1681) W37 L1 D15 H--- D18     2.5
20   Bennett McCutcheon 1565 (1669) L8 L5 D38 W37 W36     2.5
21   John Chan 1527 (1603) L12 L15 W37 D32 W33     2.5
22   Dev Isak Kosuri 1639 D30 W29 D3 F8 H---     2.5
23   Andre Persidsky 1716 (1798) H--- X--- D24 L9 H---     2.5
24   William Fitzgerald 1413 (1647) B--- D12 D23 H--- F6     2.5
25   Sarina Motwani 1528 H--- H--- W11 H--- F3     2.5
26 26-31 Nursultan Uzakbaev 1558 (1649) W5 L8 L7 L18 X34     2.0
27   Sacha Marino Sloan 1522 (1702) W7 H--- L1 H--- L14     2.0
28   Samuel Agdamag 1528 (1585) H--- D33 W18 L5 L11     2.0
29   Dominic A Vazquez 1454 (1633) H--- L22 W31 L15 H---     2.0
30   Kyle Ewart Coventry Booth 1434 (1649) D22 D32 H--- L6 H---     2.0
31   Dahlia Quinn 1522 (1664) H--- L14 L29 H--- W38     2.0
32 32-36 David Paul Toczyski 1582 (1736) H--- D30 L5 D21 L16     1.5
33   Nicholas Morello 1750 (1805) H--- D28 H--- L10 L21     1.5
34   Christian Brickhouse 1429 (1625) H--- D6 L9 H--- F26     1.5
35   Abel Talamantez 1800 (1783) H--- H--- D10 F13 U---     1.5
36   Phil Ploquin 1664 (1698) H--- F17 H--- H--- L20     1.5
37 37 Nick Casares 1637 (1429) L19 L13 L21 L20 B---     1.0
38 38-39 Andrew Braithwaite 1453 (1630) L18 L7 D20 L11 L31 H---   0.5
39   Carl Anthony Pickering 1783 (1764) H--- U--- U--- U--- U---     0.5

 

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

# Place Name Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 1-2 Andrew Burkett Rosston 1121 (1695) W11 W5 F3 W9 W7     4.0
2   Keshav V Raman 1167 H--- H--- W22 W12 W3     4.0
3 3-6 Kyle Weaver 1118 (1620) W8 D4 X1 W7 L2     3.5
4   Ummon Karpe 1301 (1634) W26 D3 W11 L5 W16   H--- 3.5
5   Neel Gore 1362 W20 L1 W21 W4 H---     3.5
6   Connor Harriman 1396 H--- U--- W18 W23 W15     3.5
7 7-10 Bryan D Martin 1205 (1585) W21 W22 W12 L3 L1     3.0
8   Richard Hack 1500 (1598) L3 W24 X25 D15 D10     3.0
9   Robert Turner 1278 (1563) H--- W14 H--- L1 W18   H--- 3.0
10   Merlin Ethan Mackley 1140 (1624) F27 W26 W13 H--- D8     3.0
11 11-17 Romeo Belmes Barreyro 1500 (1744) L1 W20 L4 W19 D14     2.5
12   Mason Tobias 1276 (1608) W19 W18 L7 L2 H---     2.5
13   Albert Martin Starr 1500 (1565) L18 W19 L10 D14 W23     2.5
14   Braxton Wardle 390 H--- L9 W24 D13 D11     2.5
15   Danny Du Uy Cao 1272 (1539) H--- W23 H--- D8 L6     2.5
16   John Pirone 1061 (1490) H--- W17 H--- H--- L4     2.5
17   Alexander Robins 1387 (1690) H--- L16 H--- W21 H---     2.5
18 18-22 Alexander Kojevnikov 1069 (1453) W13 L12 L6 W25 L9     2.0
19   Harvey Ching unr. L12 L13 W26 L11 W24     2.0
20   Mixtli Carter 961 L5 L11 L23 B--- W25     2.0
21   Steven Jessup unr. L7 B--- L5 L17 W26     2.0
22   Valeria Starkova unr. B--- L7 L2 H--- H---     2.0
23 23-24 Clarence Harris 1400 (1541) D24 L15 W20 L6 L13     1.5
24   Paul Blum 1002 (1442) D23 L8 L14 W26 L19     1.5
25 25 Aaron Gulevich unr. H--- H--- F8 L18 L20     1.0
26 26-27 Stephen L Wilson 779 L4 L10 L19 L24 L21 H--- H--- 0.0
27   Abhinav Ketineni unr. F10 U--- 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!

 

Pairings for Round 5. 2026 Spring Tuesday Night Marathon: 2000+

Bd Res White Res Black
1 0 Jimmy Heiserman (2254 4.0) 1 WFM Natalya Tsodikova (2245 3.0)
2 ½ Phillip Seitzer (2025 3.0) ½ Bradley R Diller (2122 3.0)
3 1 Phineas F Horowitz (1925 2.5) 0 Quincy Chen (2097 2.5)
4 1 Sudarshan Seshadri (2000 2.5) 0 Patrick M McCollum (2000 2.0)
7 1 Neil Kulkarni (1952 2.5) 0 Divija Hasteer (1847 2.5)
8 1 Jeremy David Cawthon (2105 2.0) 0 Cailen Jeremiah Melville (1868 2.0)
9 1 Andrew Zavgorodniy (2042 2.0) 0 Kristian Clemens (1993 1.5)
10 0 Daniel Robert Perlov (1805 1.5) 1 Edward Lewis (1927 1.5)
11 1 Chase Wang (1898 1.5) 0 Calvin Dees (1841 1.5)
12 ½ Daniel Sevall (1827 1.0) ½ Christopher Powers (1819 1.5)
13 0 F Eric Steger (1865 0.5) 1 X Stephen Parsons (2010 1.0)
  ½ IM Elliott Winslow (2237 3.0)   BYE
  ½ Michael Walder (1995 1.5)   BYE
  ½ Hector Viadiu-Ilarraza (1959 1.5)   BYE
  ½ Marlon Rigel (1862 1.5)   BYE

 

Pairings for Round 5. 2026 Spring Tuesday Night Marathon: 1600-1999

Bd Res White Res Black
5 0 Mikhail Chernobilskiy (1775 4.0) 1 Richard V Finacom (1822 3.5)
14 ½ Venkatagiri Acharya (1608 3.0) ½ John Boyer (1761 3.0)
15 0 F Sarina Motwani (1528 2.5) 1 X Frederic Dutter (1900 2.5)
16 ½ Zachary Wickliffe (1711 2.5) ½ Tao Ni (1587 2.5)
17 1 Gagik Babayan (1698 2.5) 0 Cibran Anton De La Fuente Álvarez (1481 2.5)
18 0 Isaac S Mays-Smith (1626 2.5) 1 Hoa Long Tam (1656 2.5)
19 0 F William Fitzgerald (1413 2.5) 1 X William Milliken (1638 2.5)
20 0 Sacha Marino Sloan (1522 2.0) 1 Nicholas James Latourette (1676 2.0)
21 ½ Milan Patel (1414 2.0) ½ David Siegel (1653 2.0)
22 0 Samuel Agdamag (1528 2.0) 1 Thu Anh Le (1419 2.0)
23 0 Nicholas Morello (1750 1.5) 1 John Chan (1527 1.5)
24 1 Bennett McCutcheon (1565 1.5) 0 Phil Ploquin (1664 1.5)
25 0 David Paul Toczyski (1582 1.5) 1 Sawyer Stults (1521 1.5)
26 1 X Nursultan Uzakbaev (1558 1.0) 0 F Christian Brickhouse (1429 1.5)
27 1 Dahlia Quinn (1522 1.0) 0 Andrew Braithwaite (1453 0.5)
  1 Nick Casares (1637 0.0)   BYE
  ½ Nazaret Ramirez (1800 3.0)   BYE
  ½ Andre Persidsky (1716 2.0)   BYE
  ½ Dev Isak Kosuri (1639 2.0)   BYE
  ½ Daniel J Sisti (1565 2.5)   BYE
  ½ Dominic A Vazquez (1454 1.5)   BYE
  ½ Kyle Ewart Coventry Booth (1434 1.5)   BYE

 

Pairings for Round 5. 2026 Spring Tuesday Night Marathon: U1600

Bd Res White Res Black
6 0 Kyle Weaver (1118 3.5) 1 Keshav V Raman (1167 3.0)
28 1 Andrew Burkett Rosston (1121 3.0) 0 Bryan D Martin (1205 3.0)
29 ½ Richard Hack (1500 2.5) ½ Merlin Ethan Mackley (1140 2.5)
30 1 Connor Harriman (1396 2.5) 0 Danny Du Uy Cao (1272 2.5)
31 0 John Pirone (1061 2.5) 1 Ummon Karpe (1301 2.5)
32 ½ Romeo Belmes Barreyro (1500 2.0) ½ Braxton Wardle ( 390 2.0)
33 0 Alexander Kojevnikov (1069 2.0) 1 Robert Turner (1278 2.0)
34 1 Albert Martin Starr (1500 1.5) 0 Clarence Harris (1400 1.5)
35 0 Paul Blum (1002 1.5) 1 Harvey Ching (unr. 1.0)
36 0 Aaron Gulevich (unr. 1.0) 1 Mixtli Carter ( 961 1.0)
37 1 Steven Jessup (unr. 1.0) 0 Stephen L Wilson ( 779 0.0)
  ½ Alexander Robins (1387 2.0)   BYE
  ½ Neel Gore (1362 3.0)   BYE
  ½ Mason Tobias (1276 2.0)   BYE
  ½ Valeria Starkova (unr. 1.5)   BYE