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2025 Summer 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:
https://www.chess.com/events/info/2025-mechanics-institute-tuesday-night-marathon


Register or Join Wait List Change Request Form

Info

  • Date: Tue, Jul 8 - Tue, Aug 19, 2025
  • Eligibility: Open to Everyone!
  • Rating: USCF & FIDE
  • Location: 57 Post Street, San Francisco, CA 94104
  • Capacity: 100

Registration

  • Online Registration Open Until: Tuesday, August 19: 6:30 pm
  • Onsite Registration: every Tuesday 5:30-6:15pm
  • 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 here 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: 7/8 6:30pm 7/15 6:30pm 7/22 6:30pm 7/29 6:30pm 8/5 6:30pm 8/12 6:30pm 8/19 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 July 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. 

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

  • Players must have current US Chess Federation membership. Expiration date of their US Chess membership must be later than the last day of the tournament.
  • Not sure if you have a membership? Need to check the expiration date of your members? Visit: https://new.uschess.org/player-search
  • Become a member or renew your membership: https://new.uschess.org/join-us-chessT

Tournament Rules

Our Pre-TNM Lecturers for the 2025 Summer TNM:

August 5 - NM Daniel Cremisi

August 12 - IM Elliott Winslow

August 19 - GM Priyadharshan Kannappan

  • 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 games in pdf format. 

Round 2 games in pdf format.

Round 3 games in pdf format.

Round 4 games in pdf format.

Round 5 games in pdf format.

Standings

Standings are updated after each round.

 

SwissSys Standings. 2025 Summer TNM: 2000+

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total T-Mod. Med T-Med T-Solk Prize
1 Aryan Achuthan 15445324 2264 L28 W23 W13 W17 W4 W2   5.0 17 12.5 19  
2 Alex Hayden Shrauger 15328908 2200 W11 W16 D7 W8 W9 L1   4.5 19 14 22  
3 Bradley R Diller 10079993 2069 D10 L15 W19 W31 W13 W8   4.5 16 12.5 18.5  
4 Jimmy Heiserman 12799690 2303 H--- D14 W30 W16 L1 W9   4.0 16.5 11.5 16.5  
5 Christopher Timothy Atkeson 17080462 2078 H--- D17 D31 H--- W28 W18   4.0 10.5 7.5 10.5  
6 WFM Natalya Tsodikova 12634942 2254 H--- D30 W25 H--- W20 H---   4.0 7 4 7  
7 IM Elliott Winslow 10363365 2200 W25 W18 D2 L9 D12 D14   3.5 18 13.5 20.5  
8 FM Andy C L 12559999 2313 D27 W26 W15 L2 W18 L3   3.5 17.5 13 19.5  
9 Jeremy David Cawthon 15038608 2014 W33 D13 W28 W7 L2 L4   3.5 17.5 13 19.5  
10 Neil Kulkarni 16246077 1869 D3 D31 D12 L14 W16 W22   3.5 17 12.5 19.5  
11 Edward Lewis 12601629 1922 L2 D19 W32 D21 W24 D12   3.5 17 12.5 17.5  
12 Darian Nguyen 14751121 2092 D17 H--- D10 W22 D7 D11 H--- 3.5 16 12.5 16  
13 Christophe Bambou 12734479 2130 W32 D9 L1 X--- L3 W23   3.5 16 11 16  
14 Kristian Clemens 13901075 1957 H--- D4 H--- W10 H--- D7   3.5 11 7 11  
15 Phineas F Horowitz 14209057 1912 D20 W3 L8 H--- X21 H---   3.5 11 6.5 11  
16 Michael Walder 10345120 2020 W19 L2 W26 L4 L10 W29   3.0 13 13 19.5  
17 Easwar Gnana Hari Sekar 16418483 1887 D12 D5 W34 L1 D22 D20   3.0 13 13 19.5  
18 Quincy Chen 13716492 2034 W29 L7 W27 W28 L8 L5   3.0 11 11 17  
19 Roger Christopher Smith 14437543 1836 L16 D11 L3 W30 D25 W32   3.0 10.5 10.5 15.5  
20 Max Hao 16083648 2110 D15 W34 H--- H--- L6 D17   3.0 7.5 7.5 11.5  
21 Sanat Singhal 15580756 2068 H--- H--- H--- D11 F15 W28   3.0 2 2 5.5  
22 Patrick M McCollum 11040519 2000 L26 W32 W24 L12 D17 L10   2.5 12 11.5 15.5  
23 Raghu Rajaram 12698822 1916 L24 L1 W29 D26 W30 L13   2.5 11.5 10 16.5  
24 WFM Uyanga Byambaa 14271351 2116 W23 L28 L22 W27 L11 D25   2.5 11.5 9.5 15  
25 Catalino, Jr Santos 13585436 1923 L7 W29 L6 H--- D19 D24   2.5 11 11 15  
26 Sreyshthaa Krishnan 30452740 1796 W22 L8 L16 D23 H--- D27   2.5 10 10 13.5  
27 Steven Gaffagan 12542809 1944 D8 H--- L18 L24 B--- D26   2.5 8 8 11.5  
28 Adam Mercado 16571026 1942 W1 W24 L9 L18 L5 L21   2.0 16.5 14 21.5  
29 Kshitij Tomar 16314696 1857 L18 L25 L23 W34 W32 L16   2.0 10 9.5 13  
30 Hector Viadiu-Ilarraza 12586903 1950 H--- D6 L4 L19 L23 B---   2.0 9.5 9.5 13.5  
31 Arjun Sankar 14542170 1971 H--- D10 D5 L3 U--- U---   1.5 7.5 7.5 12  
32 Stephen Parso 16566932 1917 L13 L22 L11 B--- L29 L19   1.0 10.5 10.5 14  
33 Jared E Peters 10487871 1800 L9 B--- U--- U--- U--- U---   1.0 0 0 3.5  
34 Leo Ni 30407439 1943 H--- L20 L17 L29 U--- U---   0.5 5 5 8  

SwissSys Standings. 2025 Summer TNM: 1600-1999

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total T-Mod. Med T-Med T-Solk Prize
1 Clarence Jones 14950296 1758 W30 W6 W28 X2 W5 L2   5.0 16.5 11.5 16.5  
2 Hugo Osmar Santiago 14842497 1980 B--- W24 W10 F1 W12 W1 U--- 5.0 13.5 9 13.5  
3 Mikhail Chernobilskiy 12878856 1889 L6 W30 D21 W22 W20 W9   4.5 15 11 16  
4 Daniel Robert Perlov 16465203 1720 W22 W7 H--- L5 W10 D8   4.0 17.5 13.5 17.5  
5 Serena Liu 16887121 1694 H--- W31 W9 W4 L1 D10 H--- 4.0 16.5 12 16.5  
6 Michael Horgan 14210651 1609 W3 L1 W19 H--- H--- W15   4.0 15 10.5 15  
7 Charlie Schaezlein 31629140 1484 W20 L4 W15 H--- H--- W18   4.0 12 8 12  
8 Daniel Sevall 12811060 unr. D23 W13 W27 H--- H--- D4   4.0 12 8 12  
9 Hoa Long Tam 16919862 1605 H--- W23 L5 W28 W24 L3   3.5 16 11.5 16  
10 Yonathan Admassu 15323127 1781 W32 W15 L2 X--- L4 D5   3.5 16 11 16  
11 Phil Ploquin 12535882 1668 W16 D28 W25 L12 H--- H---   3.5 12 8.5 12  
12 Guy Argo 12517167 1791 H--- H--- W33 W11 L2 H---   3.5 11 6 11  
13 Nicholas Morello 31114079 1679 H--- L8 H--- H--- W23 W20   3.5 8.5 4.5 8.5  
14 Daniel J Sisti 12734121 1444 L15 W32 H--- H--- W16 H---   3.5 6 3 6  
15 Zeno Kalonaris 16307134 1667 W14 L10 L7 W26 W17 L6   3.0 13.5 13.5 19.5  
16 David Siegel 12595160 1473 L11 W18 D26 D21 L14 W27   3.0 11.5 11.5 17  
17 Sawyer Stults 31608516 1530 L24 L21 W32 W19 L15 W29   3.0 11 11 14  
18 Stephen Touset 14197801 1615 L28 L16 W30 W27 W21 L7   3.0 10.5 10.5 15.5  
19 Isaac S Mays-Smith 30338290 1683 H--- H--- L6 L17 W22 W26   3.0 7.5 7.5 11.5  
20 Gagik Babayan 15695454 1707 L7 D22 W23 X25 L3 L13   2.5 12.5 12.5 17  
21 Jinfeng Liu 16244917 1625 U--- W17 D3 D16 L18 D24 H--- 2.5 11.5 11.5 16  
22 Samuel Agdamag 14874734 1538 L4 D20 W31 L3 L19 W30   2.5 11.5 10.5 16  
23 Carl Anthony Pickering 30689170 1655 D8 L9 L20 W31 L13 W32   2.5 10.5 10.5 14.5  
24 Chase Wang 15015852 1720 W17 L2 H--- H--- L9 D21   2.5 9.5 9.5 14.5  
25 Nursultan Uzakbaev 17137317 1589 W26 H--- L11 F20 H--- H--- H--- 2.5 2 2 5.5  
26 Rayna Yan 30157975 1722 L25 H--- D16 L15 W30 L19   2.0 10 10 13  
27 Nicholas James Latourette 12779071 1685 H--- H--- L8 L18 W32 L16   2.0 6 6 10  
28 Frederic Dutter 12343420 1900 W18 D11 L1 L9 U--- U---   1.5 10 10 14.5  
29 Nicolas T Horde 30573134 1565 H--- H--- H--- U--- U--- L17   1.5 0 0 3  
30 John Chan 12561007 1600 L1 L3 L18 W32 L26 L22   1.0 12 12 16.5  
31 Tao Ni 30260481 1617 H--- L5 L22 L23 U--- U---   0.5 5 5 9  
32 Nick, Jr Casares 10424364 1600 L10 L14 L17 L30 L27 L23   0.0 11.5 10.5 15  
33 Max Tsebrii 32509962 unr. U--- U--- L12 U--- U--- U---   0.0 0 0 3.5  

SwissSys Standings. 2025 Summer TNM: Under 1600

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total T-Mod. Med T-Med T-Solk Prize
1 Holden Fe 30663319 1264 W33 W21 H--- W28 W2 W6   5.5 13.5 9 13.5  
2 Sacha Marino Sloan 32301287 1333 W7 W20 W13 W11 L1 D5 H--- 4.5 20 14.5 22.5  
3 Zachary Wickliffe 32140128 1408 W23 W10 L9 W12 D4 W14   4.5 18 13.5 20.5  
4 David Paul Toczyski 30713291 1375 H--- H--- W7 W30 D3 W10   4.5 14 9.5 14  
5 Victor Lue 14058177 1597 H--- L11 W29 W19 W16 D2   4.0 16 11.5 16  
6 Bennett McCutcheon 30503085 1461 H--- W34 W16 H--- W9 L1 H--- 4.0 15 9.5 15  
7 Mason Tobias 32440186 1057 L2 W33 L4 X34 W28 W18   4.0 14.5 10 14.5  
8 Tomas Coghlan 30648379 1310 W22 H--- L11 D24 W30 W15   4.0 14 10 14  
9 Dahlia Quinn 30654447 1375 W31 W26 W3 H--- L6 H---   4.0 13 8.5 13  
10 Eric Liu 12929670 1299 W17 L3 D15 W32 W20 L4   3.5 16.5 12 18  
11 Nick Hollon 30477149 1344 H--- W5 W8 L2 F14 W20   3.5 15 10.5 15  
12 Thu Anh Le 17248797 1273 H--- H--- W17 L3 D15 W21   3.5 12 7.5 12  
13 Felix Elias Merk 16761910 1398 H--- X25 L2 L15 W29 W24   3.5 11 6.5 11  
14 Max Tsebrii 32509962 unr. H--- H--- B--- D20 X11 L3   3.5 7 2.5 7  
15 Sean Danganan 32500049 unr. L26 B--- D10 W13 D12 L8   3.0 12.5 12.5 16.5  
16 Milan Patel 30830536 1132 W28 H--- L6 W21 L5 D25   3.0 11.5 11.5 15.5  
17 Anthony Patrick Carion 31307134 883 L10 W23 L12 L22 X34 W28   3.0 10.5 10.5 14  
18 Gurkirat Singh 32509376 unr. H--- H--- L30 W27 W25 L7   3.0 8 8 11.5  
19 Andrew Braithwaite 31237898 1288 H--- W32 L20 L5 W22 H--- H--- 3.0 6.5 6.5 10.5  
20 Albert Martin Starr 12844781 1500 W29 L2 W19 D14 L10 L11   2.5 14.5 13 19  
21 Dominic A Vazquez 30703139 1395 W27 L1 D24 L16 W31 L12   2.5 13.5 11.5 19  
22 Paul Blum 12748433 912 L8 L28 D23 W17 L19 W32   2.5 11.5 10 15.5  
23 Alexander Kojevnikov 31856555 1152 L3 L17 D22 H--- W33 H---   2.5 5.5 5.5 10  
24 Danny Du Uy Cao 16939797 1154 H--- H--- D21 D8 H--- L13   2.5 5.5 5.5 9.5  
25 Daniel Morris 30424176 1078 H--- F13 D32 W33 L18 D16   2.5 5 5 8  
26 Bowie Chen 32358809 1250 W15 L9 L28 H--- H--- H---   2.5 4.5 4.5 8.5  
27 Rohan Priyadarshi 16760860 1115 L21 H--- H--- L18 D32 W33 H--- 2.5 4.5 4.5 7.5  
28 David R Olson 13913131 1400 L16 W22 W26 L1 L7 L17   2.0 14 11.5 19.5  
29 Steven Lee Myers 30700928 1191 L20 H--- L5 B--- L13 D31   2.0 7.5 7.5 11.5  
30 Nathan Sansoni 16912921 634 H--- H--- W18 L4 L8 U---   2.0 7 7 11.5  
31 Andrew Singer 30803745 1092 L9 H--- H--- H--- L21 D29   2.0 4 4 8  
32 Shivam Patel 32448767 1414 H--- L19 D25 L10 D27 L22   1.5 11 11 14.5  
33 Douglas Alan Burkhardt 31265165 876 L1 L7 B--- L25 L23 L27   1.0 11.5 11.5 17  
34 Robert Turner 12407483 1336 H--- L6 H--- F7 F17 U--- H--- 1.0 0 0 4  

SwissSys Standings. 2025 Summer TNM: Extra Rated

# Name ID Rating Rd 1 Rd 2 Total T-Mod. Med T-Med T-Solk Prize
1 Gagik Babayan 15695454 1707 U--- W9 1.0 0 0 0.5  
2 Felix Merk 16761910 1398 W8 U--- 1.0 0 0 0.5  
3 Max Tsebrii 32509962 unr. W10 U--- 1.0 0 0 0.5  
4 Christophe Bambou 12734479 2130 U--- D5 0.5 0 0 1  
5 Stephen Parsons 16566932 1917 U--- D4 0.5 0 0 1  
6 Elijah Tra 16188753 1800 U--- D7 0.5 0 0 1  
7 Yonathan Admassu 15323127 1781 U--- D6 0.5 0 0 1  
8 Alex Lilles 12453049 1644 L2 U--- 0.0 0 0 1.5  
9 Mason Tobias 32440186 1057 U--- L1 0.0 0 0 1.5  
10 Gurkirat Singh 32509376 unr. L3 U--- 0.0 0 0 1.5  

 

Pairings

New pairings are posted on Monday around 8pm.

 

SwissSys Report: 2025 Summer TNM

SwissSys Report: 2025 Summer TNM

SwissSys Report: 2025 Summer TNM

SwissSys Report: 2025 Summer TNM

Pairings for Round 2. 2025 Summer TNM: Extra Rated

Bd Res White Res Black
42 ½ Stephen Parsons ½ Christophe Bambou
43 1 Gagik Babayan 0 Mason Tobias
44 ½ Elijah Tra ½ Yonathan Admassu

SwissSys Report: 2025 Summer TNM

SwissSys Report: 2025 Summer TNM

SwissSys Report: 2025 Summer TNM

SwissSys Report: 2025 Summer TNM

Pairings for Round 2. 2025 Summer TNM: Extra Rated

Bd Res White Res Black
42 ½ Stephen Parsons ½ Christophe Bambou
43 1 Gagik Babayan 0 Mason Tobias
44 ½ Elijah Tra ½ Yonathan Admassu