Archived Tournament

Adults Only Tournament -- 2026 Sep

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Info

  • Date: Sun, Sep 13 , 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, September 13: 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: 9/13 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 Sep 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 regulations, anyone who receives $2000 or more in cumulative prizes during a calendar year must complete a W-9, and Mechanics’ Institute will issue a 1099-MISC form for tax reporting purposes.

 

  • Prize Fund:

    • Tentative: $560 based on 40 paid entries
    • Actual: $322 based on 23 paid entries. 
  1600+ u1600
  Projected Actual Projected Actual
1st Place $140 $81 $120 $69
2nd Place $90 $52 $80 $46
3rd Place $70 $40 $60 $35

Prizes: Mechanics' Adults Only Tournament -- 2026 Sep

# Name Place Cash Prize credited to pool Section
2 Hovik Manvelyan (2.5/1866) 1st 66.50 (2-way) 1st Place: $81;
2nd Place: $52;
2-way split of $133: $66.50 each
1600+
3 Daniel Sevall (2.5/1830) 1T 66.50 (2-way)
9 Samuel Agdamag (2.0/1405) 3rd 40.00 3rd Place: $40
12 Jack Determan (3.0/0) 1st 69.00 1st Place: $69 u1600
3 Blake Grudzien (2.5/1335) 2nd 46.00 2nd Place: $46
1 Albert Martin Starr (2.0/1500) 3rd 7.00 (5-way) 3rd Place: $35;
5-way split: $7 each
2 Preston Yadegar (2.0/1396) 3T 7.00 (5-way)
4 Luka Vyatkin (2.0/1260) 3T 7.00 (5-way)
8 Imelda Meili Hau (2.0/554) 3T 7.00 (5-way)
9 Craig Baldwin Patrick Faria (2.0/0) 3T 7.00 (5-way)

 

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

  • 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.

Sick Policy:
The Mechanics' Institute Chess Club asks that any player who is feeling unwell withdraw from the tournament to help protect the health of others. The club reserves the right to deny entry to players who appear visibly ill. Players who withdraw due to illness before the start of the tournament will receive a full refund as a credit to their Jumbula account.


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

Final Standings

 

SwissSys 11.80.4 - Standings. Mechanics' Adults Only Tournament -- 2026 Sep: 1600+

# Name ID Rating Rd 1 Rd 2 Rd 3 Total Prize
1 Hovik Manvelyan 12909955 1866 D6 W9 W8 2.5 66.50
2 Daniel Sevall 12811060 1830 W7 D8 W3 2.5 66.50
3 Samuel Agdamag 14874734 1405 B--- W4 L2 2.0 40.00
4 Noah T Lee 31732158 1873 H--- L3 B--- 1.5  
5 Necip Sayiner 13792774 1681 L8 W6 D7 1.5  
6 Phil Ploquin 12535882 1659 D1 L5 W9 1.5  
7 Jeff C Andersen 11296106 1635 L2 B--- D5 1.5  
8 Henry Xiao 16167955 1566 W5 D2 L1 1.5  
9 Vivek Srinivasan 16108498 1597 H--- L1 L6 0.5  

SwissSys 11.80.4 - Standings. Mechanics' Adults Only Tournament -- 2026 Sep: U1600

# Name ID Rating Rd 1 Rd 2 Rd 3 Total Prize
1 Jack Determan 30927503 unr. W5 W8 W4 3.0 81.00
2 Blake Grudzien 33068181 1335 W12 D9 W6 2.5 52.00
3 Albert Martin Starr 12844781 1500 L7 W11 W9 2.0 8.00
4 Preston Yadegar 31871962 1396 W11 W7 L1 2.0 8.00
5 Luka Vyatkin 30209432 1260 L1 W14 W13 2.0 8.00
6 Imelda Meili Hau 32196802 554 B--- W13 L2 2.0 8.00
7 Craig Baldwin Patrick Faria 33237874 unr. W3 L4 W12 2.0 8.00
8 Alexander W Cheney 12739482 689 W14 L1 H--- 1.5  
9 Akhilesh Sharma 33253326 unr. W10 D2 L3 1.5  
10 Anthony Lawson Defranco 32790409 1186 L9 L12 B--- 1.0  
11 Medhika A 33258019 unr. L4 L3 W14 1.0  
12 Miguel Monares 33257226 unr. L2 W10 L7 1.0  
13 Yiren Wei 33208815 840 H--- L6 L5 0.5  
14 Slater Jackson 33247613 unr. L8 L5 L11 0.0  

SwissSys 11.80.4 - Standings. Mechanics' Adults Only Tournament -- 2026 Sep: Extra Rated

# Name ID Rating Rd 1 Total Prize
1 Samuel Agdamag 14874734 1405 W2 1.0  
2 Abel Talamantez 12465386 1800 L1 0.0