Mechanics' Weekend Blitz - 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-blitz-2026-jan
Special Event: Combined sections into one Open section, with two additional rounds for a total of 9 rounds.
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: 2:00 pm
- Onsite Registration: 2:00-2:45pm
-
Entry fee for Mechanics' Institute Members: $30
- Play-up fee: $10
-
Entry fee for Non-Members: $35
- 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: 9
- Time control: 3 min basetime + 2 sec increment
- Round Times: 1/25 3:00pm and remaining rounds are on a rolling schedule
- Sections: Open
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: $240 based on 26 paid entries -- 60% payout
| 1800+ | u1800 (Class prizes) | |||
| Projected | Actual | Projected | Actual | |
| 1st Place | $125 | $88 | $75 | $53 |
| 2nd Place | $75 | $53 | $50 | $35 |
| 3rd Place | $50 | $35 | $25 | $18 |
Prizes. Mechanics' Weekend Blitz - 2026 Jan: Open
| # | Name | Cash | Prize credited to pool |
| 1 | GM Christopher Woojin Yoo (8.5/2662) | 88.00 | 1st Place: $88 |
| 2 | GM Mark Heimann (8.0/2599) | 53.00 | 2nd Place: $53 |
| 4 | FM Ethan Guo (7.5/2359) | 35.00 | 3rd Place: $35 |
| 19 | Christopher Powers (5.0/1774) | 35.00 (3-way) | Best u1800: $53; 2nd U1800: $35; 3rd U1800: $18; 3-way split of $105: $35 each |
| 25 | Sanjay D'Mello (5.0/1498) | 35.00 (3-way) | |
| 26 | Peter Vu (5.0/1371) | 35.00 (3-way) |
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
- 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-chess
Tournament Rules
- Forfeit time: 3 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/3+2 means game in 3 minutes with a 2-second increment with each move. This means you get 3 minutes, your opponent gets 3 minutes, and with each move players get 2 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 Blitz - 2026 Jan: Open
| # | Name | Rating | Rd 1 | Rd 2 | Rd 3 | Rd 4 | Rd 5 | Rd 6 | Rd 7 | Rd 8 | Rd 9 | Total | Prize |
| 1 | GM Christopher Woojin Yoo | 2662 | W18 | W9 | W8 | W3 | D2 | W4 | W6 | W5 | W7 | 8.5 | 88.00 |
| 2 | GM Mark Heimann | 2599 | W19 | W5 | W7 | W6 | D1 | D3 | W12 | W4 | W11 | 8.0 | 53.00 |
| 3 | FM Ethan Guo | 2359 | W26 | W17 | W11 | L1 | W5 | D2 | W7 | W6 | W15 | 7.5 | 35.00 |
| 4 | Ted Belanoff | 2200 | W21 | L12 | W13 | W24 | W15 | L1 | W19 | L2 | W10 | 6.0 | |
| 5 | Varun Agrawal | 1997 | W15 | L2 | W21 | W18 | L3 | W13 | W10 | L1 | W12 | 6.0 | |
| 6 | IM Ladia Jirasek | 2432 | W13 | W10 | W12 | L2 | D7 | W9 | L1 | L3 | W16 | 5.5 | |
| 7 | CM Pranav Senthilkumar | 2195 | W22 | W32 | L2 | W12 | D6 | W11 | L3 | W19 | L1 | 5.5 | |
| 8 | WFM Jenny Qi | 2130 | W14 | W23 | L1 | L11 | L18 | W17 | W20 | L12 | W21 | 5.0 | |
| 9 | Stephen Parsons | 1989 | W27 | L1 | D25 | W20 | D19 | L6 | L21 | W22 | W23 | 5.0 | |
| 10 | Sean X Zhang | 1905 | W33 | L6 | W22 | D19 | D11 | W18 | L5 | W21 | L4 | 5.0 | |
| 11 | Beckett Spence | 1858 | W28 | W30 | L3 | W8 | D10 | L7 | D16 | W13 | L2 | 5.0 | |
| 12 | Mikhail Grigorev | 1843 | W29 | W4 | L6 | L7 | W30 | W15 | L2 | W8 | L5 | 5.0 | |
| 13 | Christopher Powers | 1774 | L6 | W27 | L4 | W32 | W17 | L5 | W14 | L11 | W18 | 5.0 | 35.00 |
| 14 | Sanjay D'Mello | 1498 | L8 | L18 | W31 | L30 | W28 | W27 | L13 | W17 | W19 | 5.0 | 35.00 |
| 15 | Peter Vu | 1371 | L5 | W16 | W17 | W25 | L4 | L12 | W18 | W24 | L3 | 5.0 | 35.00 |
| 16 | Qassoud Driss | 1964 | L32 | L15 | L20 | W31 | W27 | W22 | D11 | W25 | L6 | 4.5 | |
| 17 | Frederic Dutter | 1900 | W31 | L3 | L15 | W29 | L13 | L8 | W28 | L14 | W24 | 4.0 | |
| 18 | Elliot Shindo | 1793 | L1 | W14 | W23 | L5 | W8 | L10 | L15 | W20 | L13 | 4.0 | |
| 19 | Zeno Kalonaris | 1774 | L2 | W31 | W30 | D10 | D9 | W24 | L4 | L7 | L14 | 4.0 | |
| 20 | Vivek Srinivasan | 1666 | H--- | L24 | W16 | L9 | D21 | W29 | L8 | L18 | W25 | 4.0 | |
| 21 | Phil Ploquin | 1660 | L4 | W33 | L5 | W27 | D20 | D25 | W9 | L10 | L8 | 4.0 | |
| 22 | Rohith Prabakar | 1500 | L7 | W29 | L10 | W23 | L24 | L16 | W31 | L9 | W33 | 4.0 | |
| 23 | Walidad Ali | unr. | W24 | L8 | L18 | L22 | L25 | W31 | W29 | W28 | L9 | 4.0 | |
| 24 | Allen Mo | 1863 | L23 | W20 | W32 | L4 | W22 | L19 | D25 | L15 | L17 | 3.5 | |
| 25 | Jaison Acharya | 1648 | L30 | W28 | D9 | L15 | W23 | D21 | D24 | L16 | L20 | 3.5 | |
| 26 | Ken Green | 1655 | L3 | U--- | U--- | U--- | U--- | W33 | L27 | W29 | W32 | 3.0 | |
| 27 | Aaron Ingber | 1143 | L9 | L13 | W28 | L21 | L16 | L14 | W26 | W33 | L29 | 3.0 | |
| 28 | Samuel Golub | unr. | L11 | L25 | L27 | W33 | L14 | W32 | L17 | L23 | W31 | 3.0 | |
| 29 | Ashton Playsted | unr. | L12 | L22 | W33 | L17 | W32 | L20 | L23 | L26 | W27 | 3.0 | |
| 30 | Elliott Winslow | 2200 | W25 | L11 | L19 | W14 | L12 | U--- | U--- | U--- | U--- | 2.0 | |
| 31 | Owen Michael Lopez-Oneal | 677 | L17 | L19 | L14 | L16 | W33 | L23 | L22 | W32 | L28 | 2.0 | |
| 32 | Mario M Cataruzolo | 809 | W16 | L7 | L24 | L13 | L29 | L28 | L33 | L31 | L26 | 1.0 | |
| 33 | Rachid Ben Cherif | 697 | L10 | L21 | L29 | L28 | L31 | L26 | W32 | L27 | L22 | 1.0 |
Pairings
Pairings are posted on the wall of the club. We do not post pairings online for 1-day events.