Machida Silver Week Open 2026 will take place from September 19 to 21, 2026, in Machida, Tokyo, Japan. Machida Chess Club will organize the three-day standard tournament at Machida Civic Hall.

The competition will be played as a 6-round Swiss tournament with a time control of 60 minutes plus a 30-second increment per move. Games will count for both FIDE Standard rating and Japan Chess Federation Standard rating.

With a total prize fund of JPY 200,000 / approx. $1,250, cash prizes for the top eight players, and additional rating-class prizes, the tournament offers an attractive competitive event during Japan’s Silver Week holiday period.

🗓️ Event Details

⏱️ Time Control & Pairings

The tournament will be played over six Swiss-system rounds. Each player will receive 60 minutes for the entire game, with a 30-second increment added after every move. The results will count for both FIDE Standard and Japan Chess Federation Standard rating calculation.

Players must keep an accurate scoresheet until the end of every game. After completing a game, both players must confirm and sign the recorded result before reporting it to the arbiter.

The tie-break order is:

1. Direct Encounter
2. Buchholz Cut-1
3. Buchholz
4. Sonneborn-Berger
5. Sum of opponents’ ratings
6. Drawing of lots

Players tied within the top eight may be required to participate in Armageddon playoffs. If exactly three players are tied, a round-robin playoff will be held.

If four or more players finish tied on the same score, their final positions will be determined using the tie-break order.

In an Armageddon game, White receives 10 minutes. Both players submit a time bid of up to 10 minutes, and the player making the lower bid plays Black. Black is declared the winner if the game ends in a draw.

🏆 Prize Fund

The total prize fund is JPY 200,000 / approx. $1,250.

The Open Champion will receive a trophy and cash prize.

Players finishing second through fourth, together with the A Class and B Class winners, will receive plaques and cash prizes.

Players finishing fifth through eighth will receive certificates and cash prizes.

♟️ Sections / Groups

The event will be played as one open tournament. The A Class and B Class are additional prize categories rather than separate playing sections.

Players without a FIDE Standard rating are eligible only for Open prizes.

The organizer may adjust the rating limits for the A and B Classes depending on the final entry list.

Players may receive prizes in more than one eligible category.

📅 Schedule

Saturday, September 19, 2026

Sunday, September 20, 2026

Monday, September 21, 2026

The organizer may adjust the schedule depending on tournament progress.

📝 Registration

Players must purchase a tournament ticket through the official Peatix registration page.

The U22 entry fee applies to players who are 22 years old or younger as of September 18, 2026.

Registration will close before the deadline if the maximum capacity of 64 players is reached.

On the first tournament day, participants must complete on-site registration by presenting or scanning their Peatix QR code. Name badges will be issued after registration is completed.

Participants must be members of the Japan Chess Federation. Players who are not yet members must complete their membership application before the tournament.

Players without a FIDE ID must obtain one in advance.

Eligibility is limited to players with a FIDE Standard rating under 2400.

👤 Organizer

Machida Chess Club is based in Machida, Tokyo. The club organizes chess meetings and rated tournaments for players of different ages and playing strengths.

📍 Venue

Machida Civic Hall, Meeting Room 4, 1st floor – 2-2-36 Morino, Machida, Tokyo 194-0022, Japan

The tournament will be held in Meeting Room 4 on the first floor of Machida Civic Hall.

There is no separate player waiting room. Participants may use the salon outside the first-floor playing hall or the restaurant while waiting. Players should avoid speaking loudly in the salon.

🚆 How to Get There

Machida Civic Hall is approximately a 10-minute walk northwest of Machida Station.

Players can reach Machida Station using either:

• the Odakyu Line;
• the JR Yokohama Line.

Players travelling from central Tokyo can reach Machida using the Odakyu Line from Shinjuku.

For navigation, use the complete venue address:

Machida Civic Hall, Meeting Room 4, 1st floor – 2-2-36 Morino, Machida, Tokyo 194-0022, Japan

ℹ️ Other Information

Eating is prohibited inside the playing hall. Players may drink fluids during their games.

Players must not carry or use mobile phones or other electronic devices inside the venue while playing. A violation during a game results in an immediate loss in that round and exclusion from prizes.

Outside game time, the first violation involving an electronic device will result in a warning. A second or subsequent violation will result in exclusion from prizes.

A requested bye declared by 18:00 on September 18, 2026, may receive half a point. Requested byes in the final two rounds receive zero points.

Requested byes declared after 18:00 on the day before the tournament also receive zero points. Players requesting two or more byes will not be eligible for prizes.

A player who is absent when the Round 1 pairings are prepared may receive a half-point bye.

Players must use the chess sets, clocks, and scoresheets provided by the organizer.

Players may not leave the first floor until their game in the respective round has finished.

Spectators may use electronic devices for photography only during the first 10 minutes after the beginning of each round. After that period, electronic devices must be switched off and may not be used inside the venue.

Players who feel unwell, including those experiencing fever or coughing symptoms, should refrain from participating.

Official Tournament Regulations

https://japanchess.org/wp-content/uploads/2026/06/Machida_Silver_Week_Open_2026_Regulations_EN_R1.pdf