Archived Tournament

Mechanics' Weekend Rapid - 2026 Jan

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 6 boards are broadcasted on Chess.com:
https://www.chess.com/events/mechanics-weekend-rapid-2026-jan


Register or Join Wait List Change Request Form

Info

  • Date: Sun, Jan 25 , 2026
  • Eligibility: Open to Everyone!
  • Rating: USCF & FIDE
  • Location: Mechanics' Institute, 4th Floor, 57 Post Street, San Francisco, CA 94104
  • Capacity: 80

Registration

  • Online Registration Open Until: Sunday, January 25: 9:30 am
  • Onsite Registration: 9:30-9:45am
  • Entry fee for Mechanics' Institute Members: $25
    • Play-up fee: $10
  • Entry fee for Non-Members: $30
    • Play-up fee: $15
  • Late fee: $10
  • $5 admin fee for all cancellations & refunds.
  • Two ways to check your entries:
    • Check the live entries on the Jumbula page.
    • Check the processed entries here a day before the event.
  • Please note our late fee may be in effect and is usually added 24 hours before the start of a tournament in case capacity reaches 90%.

Tournament Format

  • Tournament Format: Swiss System
  • Total Rounds: 5
  • Time control: 15 min basetime + 3 sec increment
  • Round Times: 1/25 10:00am 11:00pm 11:45pm 12:30pm 1:15pm
  • Sections: 1800+ Under1800

Play-up "200-rating point rule":

  • Players must have an 1600 USCF regular supplemental or actual regular rating to be eligible to play up to the 1800+ 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 Jan 2026 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:

    • $400 based on 40 paid entries
    • Actual Payout: $200 -- 50% minimum payout. 
  1800+ u1800
  Projected Actual Projected Actual
1st Place $125 $63 $75 $38
2nd Place $75 $38 $50 $25
3rd Place $50 $25 $25 $13

Prizes: Mechanics' Weekend Rapid - 2026 Jan

# Name Place Cash Prize credited to pool Section
1 FM Ethan Guo (5.0/2359) 1st 63.00 1st Place: $63 1800+
2 Daniel Cremisi (4.0/2347) 2nd 38.00 2nd Place: $38
3 WFM Jenny Qi (3.0/2130) 3rd 25.00 3rd Place: $25
6 Rohith Prabakar (4.0/1500) 1st 31.50 (2-way) 1st Place: $38;
2nd Place: $25;
2-way split of $63: $31.50 each
u1800
8 Peter Vu (4.0/1371) 1T 31.50 (2-way)
3 Ken Green (3.5/1655) 3rd 13.00 3rd Place: $13

 

Byes

  • Byes are available for players in any round in case they can't participate but would like to stay in the tournament.
  • Byes can be requested up to 15 minutes prior to the round start time.
  • Last round bye must be requested by the start of Round 1.
  • Late registrations will receive a 0.5 bye for any missed round, up to a total of 2 rounds.

Eligibility

Tournament Rules

  • Forfeit time: 15 minutes. 
  • We provide clocks and set it up for players.
  • Games will be US Chess and FIDE blitz rated. Modified FIDE rules apply.
     
  • What do the time controls mean?
    Time controls tell you how much time you have for each game.
    G/15+3 means game in 15 minutes with a 3-second increment with each move. This means you get 15 minutes, your opponent gets 15 minutes, and with each move players get 3 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

Processed entries are coming 1 day before the event starts.

Final standings will be posted after the event is finished.

SwissSys 11.77 - Standings. Mechanics' Weekend Rapid - 2026 Jan: 1800+

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Total Prize
1 FM Ethan Guo 16761994 2359 W2 W5 W3 W6 W4 5.0 63.00
2 Daniel Cremisi 14543654 2347 L1 W4 W5 W3 W6 4.0 38.00
3 WFM Jenny Qi 17050786 2130 W4 W6 L1 L2 W5 3.0 25.00
4 Elliot Shindo 15743927 1793 L3 L2 W6 W5 L1 2.0  
5 Qassoud Driss 32834359 1964 W6 L1 L2 L4 L3 1.0  
6 Frederic Dutter 12343420 1900 L5 L3 L4 L1 L2 0.0  

SwissSys 11.77 - Standings. Mechanics' Weekend Rapid - 2026 Jan: U1800

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Total Prize
1 Rohith Prabakar 32759506 1500 B--- W2 W7 L4 W8 4.0 31.50
2 Peter Vu 31973857 1371 W5 L1 W9 W6 W4 4.0 31.50
3 Ken Green 15208138 1655 W10 L8 D5 W9 W7 3.5 13.00
4 Russell L Siegelman 12475098 1720 L6 W10 W8 W1 L2 3.0  
5 Phil Ploquin 12535882 1660 L2 W12 D3 D10 W11 3.0  
6 Casey Marantz-Yip 31097116 1436 W4 L7 W12 L2 W10 3.0  
7 Gregory Mar 32496058 937 W9 W6 L1 D8 L3 2.5  
8 Rachid Ben Cherif 32790058 unr. W11 W3 L4 D7 L1 2.5  
9 David Siegel 12595160 1587 L7 W11 L2 L3 W12 2.0  
10 Dylan Skurow 32467183 1050 L3 L4 W11 D5 L6 1.5  
11 Gregori Lorenzo Jenkins 32275769 1516 L8 L9 L10 W12 L5 1.0  
12 Mason Tobias 32440186 1090 H--- L5 L6 L11 L9 0.5  

 

Pairings

Pairings are posted on the wall of the club. We do not post pairings online for 1-day events.