2026 Summer Celebration Blitz
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Top 6 boards are broadcasted on Chess.com:
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Info
- Date: Tue, Jun 23 , 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: Tuesday, June 23: 6:00 pm
- Onsite Registration: 6:00-6:15pm
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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: 7
- Time control: 3 min basetime + 2 sec increment
- Round Times: 6/23 6:30pm and remaining rounds are on a rolling schedule
- Sections: 1800+ u1800
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 June 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:
- $400 based on 40 paid entries
- Actual Payout: $460 based on 46 paid entries - 115% payout.
| 1800+ | u1800 | |||
| Projected | Actual | Projected | Actual | |
| 1st Place | $125 | $144 | $75 | $86 |
| 2nd Place | $75 | $86 | $50 | $58 |
| 3rd Place | $50 | $58 | $25 | $29 |
Prizes: Summer Celebration Blitz 2026
| # | Name | Place | Cash | Prize credited to pool | Section |
| 2 | Daniel Cremisi (6.5/2350) | 1st | 144.00 | 1st Place: $144 | 1800+ |
| 3 | Sebastian Suarez (6.0/2327) | 2nd | 86.00 | 2nd Place: $86 | |
| 1 | GM Mark Heimann (5.5/2547) | 3rd | 58.00 | 3rd Place: $58 | |
| 5 | Rithvik Prakki Prakki (7.0/1618) | 1st | 86.00 | 1st Place: $86 | U1800 |
| 2 | Kar Lun Cheng (5.0/1764) | 2nd | 17.40 (5-way) | 2nd Place: $58; | |
| 3 | Ritwik Saha (5.0/1630) | 2T | 17.40 (5-way) | ||
| 4 | David Siegel (5.0/1627) | 2T | 17.40 (5-way) | ||
| 9 | Thu Anh Le (5.0/1474) | 2T | 17.40 (5-way) | ||
| 17 | Ethan C Leung (5.0/1236) | 2T | 17.40 (5-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.
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
SwissSys 11.80.2 - Standings. Summer Celebration Blitz 2026: 1800+
| # | Name | ID | Rating | Rd 1 | Rd 2 | Rd 3 | Rd 4 | Rd 5 | Rd 6 | Rd 7 | Total | Prize |
| 1 | Daniel Cremisi | 14543654 | 2350 | W18 | W10 | W2 | D3 | W7 | W11 | W5 | 6.5 | 144.00 |
| 2 | Sebastian Suarez | 16875347 | 2327 | W13 | W7 | L1 | W17 | W5 | W3 | W9 | 6.0 | 86.00 |
| 3 | GM Mark Heimann | 12802899 | 2547 | W9 | W6 | W5 | D1 | W4 | L2 | W10 | 5.5 | 58.00 |
| 4 | Dmitry Vayntrub | 12911242 | 2221 | W16 | W20 | L11 | W10 | L3 | W8 | W12 | 5.0 | |
| 5 | Aadit Bhatia | 16689603 | 2279 | W14 | W8 | L3 | W11 | L2 | W7 | L1 | 4.0 | |
| 6 | Sounak Bagchi | 15744984 | 2201 | W19 | L3 | W8 | W12 | L11 | L9 | W15 | 4.0 | |
| 7 | CM Pranav Senthilkumar | 14020007 | 2184 | W23 | L2 | W18 | W14 | L1 | L5 | W17 | 4.0 | |
| 8 | Arthur Ismakov | 12654576 | 2139 | W21 | L5 | L6 | W16 | W17 | L4 | W11 | 4.0 | |
| 9 | Jeremy David Cawthon | 15038608 | 2119 | L3 | W19 | L10 | W22 | W15 | W6 | L2 | 4.0 | |
| 10 | Rohan Das | 15263634 | 2188 | W22 | L1 | W9 | L4 | W18 | D12 | L3 | 3.5 | |
| 11 | FM Tanuj Vasudeva | 13516867 | 2183 | H--- | W12 | W4 | L5 | W6 | L1 | L8 | 3.5 | |
| 12 | Keith Esses | 10352240 | 2149 | W17 | L11 | W20 | L6 | W19 | D10 | L4 | 3.5 | |
| 13 | Stephen Parsons | 16566932 | 1968 | L2 | W23 | L14 | L19 | D20 | B--- | W18 | 3.5 | |
| 14 | Phineas F Horowitz | 14209057 | 1951 | L5 | D21 | W13 | L7 | L16 | W20 | W19 | 3.5 | |
| 15 | Chawit Asavasaetakul | 30241114 | 2172 | F20 | W16 | L17 | W20 | L9 | W23 | L6 | 3.0 | |
| 16 | Yali Dancig Perlman | 16280288 | 1905 | L4 | L15 | W23 | L8 | W14 | L17 | B--- | 3.0 | |
| 17 | Avik Saha | 17251957 | 1831 | L12 | B--- | W15 | L2 | L8 | W16 | L7 | 3.0 | |
| 18 | Hugo Osmar Santiago | 14842497 | 2019 | L1 | W22 | L7 | W21 | L10 | D19 | L13 | 2.5 | |
| 19 | Frederic Dutter | 12343420 | 1900 | L6 | L9 | W21 | W13 | L12 | D18 | L14 | 2.5 | |
| 20 | Christopher Powers | 30462548 | 1832 | X15 | L4 | L12 | L15 | D13 | L14 | W22 | 2.5 | |
| 21 | David Vayntrub | 15326038 | 1815 | L8 | D14 | L19 | L18 | B--- | L22 | W23 | 2.5 | |
| 22 | Cailen Jeremiah Melville | 14006141 | 1871 | L10 | L18 | B--- | L9 | L23 | W21 | L20 | 2.0 | |
| 23 | Daniel Sevall | 12811060 | 1841 | L7 | L13 | L16 | B--- | W22 | L15 | L21 | 2.0 |
SwissSys 11.80.2 - Standings. Summer Celebration Blitz 2026: U1800
| # | Name | ID | Rating | Rd 1 | Rd 2 | Rd 3 | Rd 4 | Rd 5 | Rd 6 | Rd 7 | Total | Prize |
| 1 | Rithvik Prakki Prakki | 15271723 | 1618 | W24 | W19 | W21 | W6 | W11 | W4 | W2 | 7.0 | 86.00 |
| 2 | Kar Lun Cheng | 30599116 | 1764 | L10 | W14 | W20 | W7 | W17 | W11 | L1 | 5.0 | 17.40 |
| 3 | Ritwik Saha | 30418328 | 1630 | L6 | W24 | L13 | W25 | W8 | W21 | W10 | 5.0 | 17.40 |
| 4 | David Siegel | 12595160 | 1627 | W16 | W10 | L11 | W5 | W13 | L1 | W14 | 5.0 | 17.40 |
| 5 | Thu Anh Le | 17248797 | 1474 | W26 | D13 | W18 | L4 | D9 | W6 | W11 | 5.0 | 17.40 |
| 6 | Ethan C Leung | 32541981 | 1236 | W3 | W7 | W17 | L1 | W10 | L5 | W9 | 5.0 | 17.40 |
| 7 | Aaron Cheng | 30774877 | 1533 | W25 | L6 | W23 | L2 | L21 | W26 | W19 | 4.0 | |
| 8 | Ioannis Dimotsis | 33173629 | 1500 | W27 | L11 | L10 | W12 | L3 | W20 | W17 | 4.0 | |
| 9 | Asher Lieberman | 17103273 | 1380 | D14 | L21 | W27 | W16 | D5 | W12 | L6 | 4.0 | |
| 10 | Ethan Lam | 30150899 | 1273 | W2 | L4 | W8 | W19 | L6 | W17 | L3 | 4.0 | |
| 11 | Shane Davis | 32212404 | 1095 | W18 | W8 | W4 | W13 | L1 | L2 | L5 | 4.0 | |
| 12 | Rodrigo Vicente Arevalo Rivas | 33174147 | unr. | F23 | B--- | W24 | L8 | W25 | L9 | W18 | 4.0 | |
| 13 | Aaron Ingber | 32151075 | unr. | W20 | D5 | W3 | L11 | L4 | D19 | W21 | 4.0 | |
| 14 | Christopher Edward Carl Vandiver | 33173469 | unr. | D9 | L2 | D19 | W23 | W15 | W18 | L4 | 4.0 | |
| 15 | Yiran Mao | 33173641 | 1450 | L21 | W22 | D16 | L20 | L14 | W24 | W25 | 3.5 | |
| 16 | Dylan Asher Skurow | 32467183 | 1179 | L4 | W26 | D15 | L9 | L19 | W23 | W24 | 3.5 | |
| 17 | Pavel Kolesnikov | 30194161 | 1783 | W28 | W23 | L6 | W21 | L2 | L10 | L8 | 3.0 | |
| 18 | Nick Casares | 10424364 | 1600 | L11 | W27 | L5 | W26 | W20 | L14 | L12 | 3.0 | |
| 19 | Neel Gore | 30176757 | 1428 | W22 | L1 | D14 | L10 | W16 | D13 | L7 | 3.0 | |
| 20 | Fadi Arodaki | 31279904 | 1410 | L13 | W25 | L2 | W15 | L18 | L8 | B--- | 3.0 | |
| 21 | Alex Yuen | 32595736 | 113 | W15 | W9 | L1 | L17 | W7 | L3 | L13 | 3.0 | |
| 22 | Christian Groen | 33100744 | unr. | L19 | L15 | L25 | B--- | L24 | W27 | W26 | 3.0 | |
| 23 | Samuel Agdamag | 14874734 | 1437 | X12 | L17 | L7 | L14 | L26 | L16 | W27 | 2.0 | |
| 24 | Philip Ranjan | 33147377 | 1150 | L1 | L3 | L12 | W27 | W22 | L15 | L16 | 2.0 | |
| 25 | Shivaansh Girish | 32467199 | 929 | L7 | L20 | W22 | L3 | L12 | B--- | L15 | 2.0 | |
| 26 | Braxton Wardle | 31661706 | 711 | L5 | L16 | B--- | L18 | W23 | L7 | L22 | 2.0 | |
| 27 | Andrew Ranjan | 33147402 | 750 | L8 | L18 | L9 | L24 | B--- | L22 | L23 | 1.0 | |
| 28 | Alexander Robins | 31932004 | 1305 | L17 | U--- | U--- | U--- | U--- | U--- | U--- | 0.0 |
Pairings
Pairings are posted on the wall of the club. We do not post pairings online for 1-day events.