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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

  • 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 60 paid entries
    • Actual Payout: $3000 based on 100 paid entries, $125%.
  2000+ 1600-1999 u1600
  Projected Actual Projected Actual Projected Actual
1st Place $500 $625 $300 $375 $200 $250
2nd Place $300 $375 $200 $250 $100 $125
3rd Place $200 $250 $100 $125 $50 $63
Best under2200 $100 $125        
Best under2000 $100 $125        
Best under1800     $75 $94    
Best under1600     $75 #94    
Best under1400         $50 $63
Best under1200         $50 $63

Prizes: 2025 Summer TNM

# Name Cash Prize credited to pool Section
3 Aryan Achuthan (5.5/2264) 500.00 1st Place: $625;
2nd Place: $375;
2-way split of $1000: $500 each		 2000+
6 Alex Hayden Shrauger (5.5/2200) 500.00
12 Bradley R Diller (5.0/2069) 250.00 3rd Place: $250
11 Christopher Timothy Atkeson (4.5/2078) 62.50 Top u2200: $125;
2-way split: $62.50 each
7 Christophe Bambou (4.5/2130) 62.50
30 Neil Kulkarni (4.0/1869) 62.50 Top u2000: $125;
2-way split: $62.50 each
25 Edward Lewis (4.0/1922) 62.50
6 Clarence Jones (5.5/1758) 375.00 1st Place: $375 1600-1999
31 Daniel Sevall (5.0/1862) 125.00 2nd Place: $250;
3rd Place: $125;
3-way split of $375: $125 each
1 Hugo Osmar Santiago (5.0/1980) 125.00
3 Mikhail Chernobilskiy (5.0/1889) 125.00
30 Daniel J Sisti (4.5/1444) 94.00 Top u1600: $94
22 Hoa Long Tam 18.00 Top u1800: $94;
5-way split: $18 each
5 Yonathan Admassu 18.00
8 Daniel Robert Perlov 18.00
11 Serena Liu 18.00
21 Michael Horgan 18.00
5 Zachary Wickliffe (5.5/1408) 146.00 1st Place: $250;
2nd Place: $125;
3rd Place: $63;
3-way split of $438: $146.00 each		 u1600
10 David Paul Toczyski (5.5/1375) 146.00
18 Holden Fees (5.5/1264) 146.00
9 Dahlia Quinn (5.0/1375) 31.50 Top u1400: $63;
2-way split: $31.50 each
13 Sacha Marino Sloan (5.0/1333) 31.50
23 Milan Patel (4.0/1132) 31.50 Top u1200: $63;
2-way split: $31.50 each
27 Mason Tobias (4.0/1057) 31.50

 

 

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

  • 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
  • Download Round 6 as PGN Watch Replay of Round 6
  • Download Round 7 as PGN Watch Replay of Round 7

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.

Round 6 games in pdf format.

Round 7 games in pdf format.

Standings

SwissSys Report: 2025 Summer TNM

SwissSys Standings. 2025 Summer TNM: 2000+

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total Prize
1 Aryan Achuthan 15445324 2264 L24 W20 W6 W22 W4 W2 D3 5.5 500.00
2 Alex Hayden Shrauger 15328908 2200 W12 W17 D5 W14 W11 L1 W8 5.5 500.00
3 Bradley R Diller 10079993 2069 D13 L21 W25 W31 W6 W14 D1 5.0 250.00
4 Jimmy Heiserman 12799690 2303 H--- D18 W29 W17 L1 W11 D7 4.5  
5 IM Elliott Winslow 10363365 2200 W19 W16 D2 L11 D10 D18 W21 4.5  
6 Christophe Bambou 12734479 2130 W32 D11 L1 X--- L3 W20 W18 4.5 62.50
7 Christopher Timothy Atkeson 17080462 2078 H--- D22 D31 H--- W24 W16 D4 4.5 62.50
8 WFM Natalya Tsodikova 12634942 2254 H--- D29 W19 H--- W9 H--- L2 4.0  
9 Max Hao 16083648 2110 D21 W34 H--- H--- L8 D22 W25 4.0  
10 Darian Nguyen 14751121 2092 D22 H--- D13 W26 D5 D12 H--- 4.0  
11 Jeremy David Cawthon 15038608 2014 W33 D6 W24 W5 L2 L4 D13 4.0  
12 Edward Lewis 12601629 1922 L2 D25 W32 D23 W15 D10 D16 4.0 62.50
13 Neil Kulkarni 16246077 1869 D3 D31 D10 L18 W17 W26 D11 4.0 62.50
14 FM Andy C Lee 12559999 2313 D27 W28 W21 L2 W16 L3 U--- 3.5  
15 WFM Uyanga Byambaa 14271351 2116 W20 L24 L26 W27 L12 D19 W28 3.5  
16 Quincy Chen 13716492 2034 W30 L5 W27 W24 L14 L7 D12 3.5  
17 Michael Walder 10345120 2020 W25 L2 W28 L4 L13 W30 D22 3.5  
18 Kristian Clemens 13901075 1957 H--- D4 H--- W13 H--- D5 L6 3.5  
19 Catalino, Jr Santos 13585436 1923 L5 W30 L8 H--- D25 D15 W32 3.5  
20 Raghu Rajaram 12698822 1916 L15 L1 W30 D28 W29 L6 W26 3.5  
21 Phineas F Horowitz 14209057 1912 D9 W3 L14 H--- X23 H--- L5 3.5  
22 Easwar Gnana Hari Sekar 16418483 1887 D10 D7 W34 L1 D26 D9 D17 3.5  
23 Sanat Singhal 15580756 2068 H--- H--- H--- D12 F21 W24 U--- 3.0  
24 Adam Mercado 16571026 1942 W1 W15 L11 L16 L7 L23 W30 3.0  
25 Roger Christopher Smith 14437543 1836 L17 D12 L3 W29 D19 W32 L9 3.0  
26 Patrick M McCollum 11040519 2000 L28 W32 W15 L10 D22 L13 L20 2.5  
27 Steven Gaffagan 12542809 1944 D14 H--- L16 L15 B--- D28 U--- 2.5  
28 Sreyshthaa Krishnan 30452740 1796 W26 L14 L17 D20 H--- D27 L15 2.5  
29 Hector Viadiu-Ilarraza 12586903 1950 H--- D8 L4 L25 L20 B--- U--- 2.0  
30 Kshitij Tomar 16314696 1857 L16 L19 L20 W34 W32 L17 L24 2.0  
31 Arjun Sankar 14542170 1971 H--- D13 D7 L3 U--- U--- U--- 1.5  
32 Stephen Parsons 16566932 1917 L6 L26 L12 B--- L30 L25 L19 1.0  
33 Jared E Peterson 10487871 1800 L11 B--- U--- U--- U--- U--- U--- 1.0  
34 Leo Ni 30407439 1943 H--- L9 L22 L30 U--- U--- U--- 0.5  

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 Prize
1 Clarence Jones 14950296 1758 W30 W8 W29 X2 W7 L2 D3 5.5 375.00
2 Hugo Osmar Santiago 14842497 1980 B--- W14 W5 F1 W13 W1 U--- 5.0 125.00
3 Mikhail Chernobilskiy 12878856 1889 L8 W30 D22 W27 W15 W9 D1 5.0 125.00
4 Daniel Sevall 12811060 1862 D18 W16 W28 H--- H--- D6 W11 5.0 125.00
5 Yonathan Admassu 15323127 1781 W32 W21 L2 X--- L6 D7 W17 4.5 18.80
6 Daniel Robert Perlov 16465203 1720 W27 W11 H--- L7 W5 D4 D8 4.5 18.80
7 Serena Liu 16887121 1694 H--- W31 W9 W6 L1 D5 H--- 4.5 18.80
8 Michael Horgan 14210651 1609 W3 L1 W20 H--- H--- W21 D6 4.5 18.80
9 Hoa Long Tam 16919862 1605 H--- W18 L7 W29 W14 L3 X21 4.5 18.80
10 Daniel J Sisti 12734121 1444 L21 W32 H--- H--- W12 H--- X13 4.5 94.00
11 Charlie Schaezlein 31629140 1484 W15 L6 W21 H--- H--- W23 L4 4.0  
12 David Siegel 12595160 1473 L17 W23 D19 D22 L10 W28 W25 4.0  
13 Guy Argo 12517167 1791 H--- H--- W33 W17 L2 H--- F10 3.5  
14 Chase Wang 15015852 1720 W25 L2 H--- H--- L9 D22 W28 3.5  
15 Gagik Babayan 15695454 1707 L11 D27 W18 X24 L3 L16 W20 3.5  
16 Nicholas Morello 31114079 1679 H--- L4 H--- H--- W18 W15 U--- 3.5  
17 Phil Ploquin 12535882 1668 W12 D29 W24 L13 H--- H--- L5 3.5  
18 Carl Anthony Pickering 30689170 1655 D4 L9 L15 W31 L16 W32 W27 3.5  
19 Rayna Yan 30157975 1722 L24 H--- D12 L21 W30 L20 W32 3.0  
20 Isaac S Mays-Smith 30338290 1683 H--- H--- L8 L25 W27 W19 L15 3.0  
21 Zeno Kalonaris 16307134 1667 W10 L5 L11 W19 W25 L8 F9 3.0  
22 Jinfeng Liu 16244917 1625 U--- W25 D3 D12 L23 D14 H--- 3.0  
23 Stephen Touset 14197801 1615 L29 L12 W30 W28 W22 L11 U--- 3.0  
24 Nursultan Uzakbaev 17137317 1589 W19 H--- L17 F15 H--- H--- H--- 3.0  
25 Sawyer Stults 31608516 1530 L14 L22 W32 W20 L21 W26 L12 3.0  
26 Nicolas T Horde 30573134 1565 H--- H--- H--- U--- U--- L25 W30 2.5  
27 Samuel Agdamag 14874734 1538 L6 D15 W31 L3 L20 W30 L18 2.5  
28 Nicholas James Latourette 12779071 1685 H--- H--- L4 L23 W32 L12 L14 2.0  
29 Frederic Dutter 12343420 1900 W23 D17 L1 L9 U--- U--- U--- 1.5  
30 John Chan 12561007 1600 L1 L3 L23 W32 L19 L27 L26 1.0  
31 Tao Ni 30260481 1617 H--- L7 L27 L18 U--- U--- U--- 0.5  
32 Nick, Jr Casares 10424364 1600 L5 L10 L25 L30 L28 L18 L19 0.0  
33 Max Tsebrii 32509962 unr. U--- U--- L13 U--- U--- U--- U--- 0.0  

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 Probable Prize
1 Zachary Wickliffe 32140128 1408 W27 W16 L4 W18 D2 W8 W12 5.5 146.00
2 David Paul Toczyski 30713291 1375 H--- H--- W12 W31 D1 W16 W10 5.5 146.00
3 Holden Fees 30663319 1264 W34 W14 H--- W22 W5 W6 U--- 5.5 146.00
4 Dahlia Quinn 30654447 1375 W30 W19 W1 H--- L6 H--- W9 5.0 31.50
5 Sacha Marino Sloan 32301287 1333 W12 W21 W7 W15 L3 D9 H--- 5.0 31.50
6 Bennett McCutcheon 30503085 1461 H--- W33 W11 H--- W4 L3 H--- 4.5  
7 Felix Elias Merk 16761910 1398 H--- X28 L5 L13 W29 W23 W16 4.5  
8 Max Tsebrii 32509962 unr. H--- H--- B--- D21 X15 L1 W15 4.5  
9 Victor Lue 14058177 1597 H--- L15 W29 W17 W11 D5 L4 4.0  
10 Tomas Coghlan 30648379 1310 W20 H--- L15 D23 W31 W13 L2 4.0  
11 Milan Patel 30830536 1132 W22 H--- L6 W14 L9 D28 W18 4.0 31.50
12 Mason Tobias 32440186 1057 L5 W34 L2 X33 W22 W26 L1 4.0 31.50
13 Sean Danganan 32500049 unr. L19 B--- D16 W7 D18 L10 W25 4.0  
14 Dominic A Vazquez 30703139 1395 W24 L3 D23 L11 W30 L18 W26 3.5  
15 Nick Hollon 30477149 1344 H--- W9 W10 L5 F8 W21 L8 3.5  
16 Eric Liu 12929670 1299 W25 L1 D13 W32 W21 L2 L7 3.5  
17 Andrew Braithwaite 31237898 1288 H--- W32 L21 L9 W20 H--- H--- 3.5  
18 Thu Anh Le 17248797 1273 H--- H--- W25 L1 D13 W14 L11 3.5  
19 Bowie Chen 32358809 1250 W13 L4 L22 H--- H--- H--- W28 3.5  
20 Paul Blum 12748433 912 L10 L22 D27 W25 L17 W32 W29 3.5  
21 Albert Martin Starr 12844781 1500 W29 L5 W17 D8 L16 L15 D23 3.0  
22 David R Olson 13913131 1400 L11 W20 W19 L3 L12 L25 B--- 3.0  
23 Danny Du Uy Cao 16939797 1154 H--- H--- D14 D10 H--- L7 D21 3.0  
24 Rohan Priyadarshi 16760860 1115 L14 H--- H--- L26 D32 W34 H--- 3.0  
25 Anthony Patrick Carion 31307134 883 L16 W27 L18 L20 X33 W22 L13 3.0  
26 Gurkirat Singh 32509376 unr. H--- H--- L31 W24 W28 L12 L14 3.0  
27 Alexander Kojevnikov 31856555 1152 L1 L25 D20 H--- W34 H--- U--- 2.5  
28 Daniel Morris 30424176 1078 H--- F7 D32 W34 L26 D11 L19 2.5  
29 Steven Lee Myers 30700928 1191 L21 H--- L9 B--- L7 D30 L20 2.0  
30 Andrew Singer 30803745 1092 L4 H--- H--- H--- L14 D29 U--- 2.0  
31 Nathan Sansoni 16912921 634 H--- H--- W26 L2 L10 U--- U--- 2.0  
32 Shivam Patel 32448767 1414 H--- L17 D28 L16 D24 L20 U--- 1.5  
33 Robert Turner 12407483 1336 H--- L6 H--- F12 F25 U--- U--- 1.0  
34 Douglas Alan Burkhardt 31265165 876 L3 L12 B--- L28 L27 L24 U--- 1.0  

SwissSys Standings. 2025 Summer TNM: Extra Rated

# Name ID Rating Rd 1 Rd 2 Rd 3 Total Prize
1 Gagik Babayan 15695454 1707 U--- W11 U--- 1.0  
2 Felix Merk 16761910 1398 W9 U--- U--- 1.0  
3 Calvin Django Dees 30307126 1112 U--- U--- W10 1.0  
4 Max Tsebrii 32509962 unr. W12 U--- U--- 1.0  
5 Christophe Bambou 12734479 2130 U--- D6 U--- 0.5  
6 Stephen Parsons 16566932 1917 U--- D5 U--- 0.5  
7 Elijah Tra 16188753 1800 U--- D8 U--- 0.5  
8 Yonathan Admassu 15323127 1781 U--- D7 U--- 0.5  
9 Alex Lilles 12453049 1644 L2 U--- U--- 0.0  
10 David R Olson 13913131 1400 U--- U--- L3 0.0  
11 Mason Tobias 32440186 1057 U--- L1 U--- 0.0  
12 Gurkirat Singh 32509376 unr. L4 U--- U--- 0.0  

 

 

Pairings

SwissSys Report: 2025 Summer TNM

SwissSys Report: 2025 Summer TNM

SwissSys Report: 2025 Summer TNM

SwissSys Report: 2025 Summer TNM

Pairings for Round 3. 2025 Summer TNM: Extra Rated

Bd Res White Res Black
39 1 Calvin Django Dees (1112 - 0.0) 0 David R Olson (1400 - 0.0)