Archived Tournament

Adults Only Tournament -- 2026 March

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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 will be broadcasted:

https://www.chess.com/events/mechanics-adults-only-tournament-2026-jan


Register or Join Wait List Change Request Form

Info

  • Date: Sun, Mar 15 , 2026
  • Eligibility: Open to Everyone!
  • Rating: USCF
  • Location: Mechanics' Institute, 4th Floor, 57 Post Street, San Francisco, CA 94104
  • Capacity: 80

Registration

  • Online Registration Open Until: Sunday, March 15: 10:00 am
  • Onsite Registration: 9:30-9:45am
  • Entry fee for Mechanics' Institute Members: $40
  • Entry fee for Non-Members: $50
  • 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: 3
  • Time control: 60 min basetime + 5 sec increment
  • Round Times: 3/15 10:00am 1:00pm 3:30pm
  • Sections: 1600+ u1600

Adult only section: players must be 18 or older.

Two sections offered at registration: u1600 and 1600+/

Sections might be combined if registration numbers are low.

 

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

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:

    • Tentative:$560 based on 40 paid entries
    • Actual: coming after tournament is finished.
    •  
  1600+ u1600
  Projected Actual Projected Actual
1st Place $140   $120  
2nd Place $90   $80  
3rd Place $70   $60  

Byes

 

  • A maximum of two half-point byes can be requested in this tournament.
  • Late registrations will receive a half-point bye for any missed round.
     

Eligibility

Tournament Rules

  • What do the time controls mean?
    Time controls tell you how much time you have for each game.
    G60;d5 means game in 60 minutes with a 5-second delay on each move. This means you get 60 minutes, your opponent gets 60 minutes, and at each move the clock counts down from 5 to 0 before the player's time starts. If a player doesn't use up the whole 5 seconds, the remainder of that time is lost.
  • How many games/rounds?
    The 43S before the time control means it is a Swiss System tournament with three rounds, or four games, that a player can play in the tournament. The tournaments are never elimination, so win or lose, you can stay in the tournament. 
  • 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 regular rated. 
     
  • What do the time controls mean?
    Time controls tell you how much time you have for each game.
    G60+5 means game in 60 minutes with a 5-second increment with each move. This means you get 60 minutes, your opponent gets 60 minutes, and with each move players get 5 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

SwissSys 11.79.4 - Standings. Adults Only Tournament -- 2026 March: 1600+

# Name ID Rating Rd 1 Rd 2 Rd 3 Total Prize
1 GM Christopher Woojin Yoo 15244943 2665 (2609) W10 W2 W4 3.0  
2 Philip Daniel Johnson 30674060 1993 (1695) W6 L1 W8 2.0  
3 Frederic Dutter 12343420 1900 (1764) D8 W9 D5 2.0  
4 Ryan Pan 32395451 1503 W9 W5 L1 2.0  
5 Phineas F Horowitz 14209057 1925 (1840) W7 L4 D3 1.5  
6 Zachi Baharav 13464604 1734 L2 W7 D9 1.5  
7 Samuel Joseph Petty 12582250 1701 L5 L6 B--- 1.0  
8 Kevin M Fong 17254586 1701 (1772) D3 D10 L2 1.0  
9 Marlon Rigel 30206555 1862 (1783) L4 L3 D6 0.5  
10 Kar Lun Cheng 30599116 1781 L1 D8 U--- 0.5  

 

SwissSys 11.79.4 - Standings. Adults Only Tournament -- 2026 March: U1600

# Name ID Rating Rd 1 Rd 2 Rd 3 Total Prize
1 Andrew Xue 32945228 unr. W5 W6 W3 3.0  
2 Richard Hack 12796129 1500 (1598) H--- W8 W6 2.5  
3 Shahin Aghevli 30622638 1542 W7 W9 L1 2.0  
4 Albert Martin Starr 12844781 1500 (1565) L9 W7 W8 2.0  
5 Kyle Weaver 32642649 1118 (1620) L1 W10 W9 2.0  
6 John Chan 12561007 1527 (1603) W10 L1 L2 1.0  
7 Brian Keith Langendorf 30893468 897 L3 L4 B--- 1.0  
8 Imelda Meili Hau 32196802 122 B--- L2 L4 1.0  
9 Ricardo Qiu 32947181 unr. W4 L3 L5 1.0  
10 Jeff Rooney 14701876 721 L6 L5 U--- 0.0  

 

SwissSys 11.79.4 - Standings. Adults Only Tournament -- 2026 March: Extra Rated

# Name ID Rating Rd 1 Total Prize
1 Samuel Joseph Petty 12582250 1701 W2 1.0  
2 Brian Keith Langendorf 30893468 897 L1 0.0