Ota Blind Summer 2022


午前に行われる大田2022夏 (以下、AM大会) と午後に行われる大田BLD2022夏 (以下、PM大会) は 、WCA Competition Requirements Policy で定められているところの「Series Competitions」となります。


  • AM大会は、3x3x3 キューブの1種目のみです。
  • PM大会は、3x3x3 目隠しの1種目のみです。

新型コロナウイルス感染症 (COVID-19) 対策のため、本大会では会場への入場者数を制限しています。
見学を希望の場合、実行委員会宛に大会2日前までにメールを送ってください。 詳細は「見学の申請」のタブをご確認ください。

Ota Summer 2022 (AM) and Ota Blind Summer 2022 (PM) are "Series Competitions" defined in the WCA Competition Requirements Policy.
Therefore, you can register either of these competitions. If you register for both competitions, the earlier one will only be recieved, and the later one will be rejected.

Please make sure that the events for AM and PM are different.

  • AM holds only one event, the 3x3x3 cube.
  • PM holds only one event, the 3x3x3 blindfolded.

The number of persons in the venue is controlled as a COVID-19 countermeasure.
If you are not a competitor or their guest and that you want to observe the competition, please be sure to email the organization team before 28th July.
Please find "Request of observation as a visitor" tab in detail.

Main event
Registration period

Online registration opened and closed .

Registration requirements
This competition is over, click here to display the registration requirements it used.
Register for this competition here.
There is a competitor limit of 40 competitors.
The base registration fee for this competition is ¥3,000 (Japanese Yen).
If your registration is cancelled before you will be refunded 100% of your registration fee.
Registrants on the waiting list may be accepted onto the competitor list until .
No on the spot registrations will be accepted.

参加資格 / Qualification

詳細は "開催種目" タブをご確認ください。

No qualification is required for your registration, but Time limit and Cutoff may be applied for each event. Please check "Events" Tab in detail.

参加申し込み / Registration

参加申し込みはスピードキュービングジャパン内の専用ページにて行います。この WCA 大会ページからはお申し込みいただけません。





Visit registration website in Speedcubing Japan for your registration.

This competition uses a completely pre-paid cashless system.
Cash payments will not be accepted. Please prepare a credit card or other ways in advance.

Your registration application will be validated upon completion of the registration fee payment process, and will then be approved on a first-come, first-served basis.
Since this approval is a manual operation by the Organizing team, a slight time delay will exist.

Your registration will be added to the waiting list when the number of participants has already reached the limit. Then your registration may not be approved even if payment has been completed. Registrations on the waiting list will be approved if any one of the accepted competitors withdraws themselves. All competitors still on the waiting list after registration periods will be removed.

The due date for advance payment is as same as the end of the registration period.
The refund policy in such cases is described separately below.

参加申し込みの内容変更・キャンセル / Changing or Canceling your Registration


If you would like to change your registration (e.g. changing events, number of guests) or withdraw from the competition, please email the organization team at ota2022@speedcubing.or.jp.

参加費 / Registration fees


Fee: 3,000 JPY

返金ポリシー / Refund policy

1. 参加申し込みと支払いは完了したが、キャンセル待ちリストに入ったまま申し込み期間が終了してしまい参加が承認されなかった場合 / In case you are still on the waiting list at the end of registration period, so that your registration is not approved

You can receive a full refund.

2. 申し込み期間終了後、いったん承認された参加をキャンセルする場合 / In case you want to cancel your registration after approved

The refund rate depends on when you will have completed the cancelation process as below table.

通常の返金ポリシー / Standard cases
参加キャンセル完了時点 / Canceletaion completion time 返金割合 / Refund rate
申し込み期間中 / During registration period 100% 全額を返金します/ Full refund
申し込み期間終了後から大会前日 24:00 まで/ After registration period to the day before the competition day 24:00 50% 半額を返金します / Half refund
大会当日以降 / On or After the competition day 0% 返金いたしません / No refund
COVID-19 の情勢変更などによる不可抗力によって開催中止となった場合 / In case of force majeure (e.g. unexpected spread of COVID-19)
参加キャンセル完了時点 / Canceletaion completion time 返金割合 / Refund rate
申し込み期間中 / During registration period 100% 全額を返金します/ Full refund
申し込み期間終了後/ After registration period 変動制: お支払い済みの金額から1000円を差し引いた金額を返金します / Depends: Full refund except for 1,000 JPY


These refunds will be processed after the competition. Due to differences in the details of each credit card company, it may take up to several months after the competition for the refund to be completed.

Click here to display the highlights of the competition.

Keita Hayakawa (早川慶太) won with a single solve of 18.30 seconds in the 3x3x3 Blindfolded event. Masato Fujiwara (藤原正人) finished second (19.46) and Keiichiro Taira (平佳一郎) finished third (25.32).

Event Name Best Average Representing Solves
3x3x3 Blindfolded Keita Hayakawa (早川慶太) 18.30 NR 21.85 Japan 18.3024.1623.10
Event Round Format Time limit Proceed
3x3x3 Blindfolded First round Bo3 10:00.00 cumulative * Top 75% advance to next round
Final Bo3 10:00.00 cumulative *

You are viewing the schedule for the venue [池上会館 (Ikegamikaikan Hall)](http://www.city.ota.tokyo.jp/shisetsu/ikegamikaikan/index.html).
The schedule is displayed in the timezone Asia/Tokyo.
Add to calendar

Display the schedule as:

Schedule for Saturday (July 30, 2022)

From 01:30 PM
To 01:40 PM
開場 (Opening)
第一会議室 (meeting room one)
From 01:40 PM
To 02:00 PM
受付開始 (Registration)
第一会議室 (meeting room one)
From 02:00 PM
To 02:10 PM
初心者講習会 (Lecture for beginners)
第一会議室 (meeting room one)
From 02:10 PM
To 02:15 PM
開会宣言 (Opening ceremony)
第一会議室 (meeting room one)
From 02:30 PM
To 03:30 PM
3x3x3 Blindfolded First round
第一会議室 (meeting room one)
Time limit
10:00.00 cumulative *
Top 75% advance to next round
From 04:00 PM
To 04:45 PM
3x3x3 Blindfolded Final
第一会議室 (meeting room one)
Time limit
10:00.00 cumulative *
From 05:15 PM
To 05:30 PM
表彰 (Award ceremony)
第一会議室 (meeting room one)
From 05:30 PM
To 05:40 PM
閉会式 (Closing ceremony)
第一会議室 (meeting room one)

新型コロナウイルス感染症 (COVID-19) 対策のため、すべての来場者の方々は以下の事項および実行委員会の指示に従っていただきます。

  • すべての来場者に新型コロナワクチンの接種を強く推奨します。
  • 常に不織布マスクを着用してください。
  • マスクは鼻にすき間なくフィットさせ、しっかりと着用してください。顔に密着しないタイプのフェイスガードは飛沫拡散防止効果が低いため、マスクの代替として認めません。
  • 競技参加者の同伴者や見学者は事前申請制で、原則として競技参加者 1 人につき 1 名のみが認められます。事前申請のない同伴者は入場をお断りする場合があります。
  • 風邪や発熱など、COVID-19 に類似の症状がある場合には来場しないでください。
  • 本人に症状がなくとも、検査が陽性あるいは濃厚接触者と判明した等の理由で隔離が必要と判断される場合には来場しないでください。
  • 他者との間には十分な距離を保ち、密を避けてください。
  • スマートフォンをお持ちの場合、 新型コロナウイルス接触確認アプリ(COCOA)のインストールを推奨します。

All attendees are required to follow below and instructions of the organizing team.
If you have any particular reason to be treated specially, please be sure to inform us in advance.

  • All attendees are strongly recommended to be fully vaccinated.
  • Always wear a non-woven face mask to prevent the spread of droplets.
  • Competitors may bring at most one guest. No external spectators are allowed, only those coming with a confirmed competitor will be allowed in the venue.
  • Please do not attend the competition if you have symptoms related to COVID-19 such as cough, fever, shortness of breath, etc.
  • Please do not attend the competition if your isolation deemed to necessary because of a positive COVID-19 test or prolonged exposure to someone with the virus.
  • Please keep a sufficient distance and avoid close contact with others.
  • If you have a smartphone, we recommend installing the Confirmation of Contact with the New Coronavirus (COCOA) app.


The top 3 competitors in the event will be awarded a certificate.


This is an assignment table.

新型コロナウイルス感染症 (COVID-19) 対策のため、本大会では会場への入場者数を制限しています。

The number of persons in the venue is controlled as COVID-19 countermeasure.
If you are not a competitor or their guest and that you want to observe the competition, please be sure to email the organization team before 28th July.

WCA 大会に参加すると、あなたの個人情報の一部(名前、国籍、性別)と WCA 競技結果を含むプロフィールがこのように公開されます
このため、初回参加時には WCA アカウントに登録する名前、国籍、性別、生年月日などの個人情報を確認するための身分証の提示を WCA 代理人より求める場合があります。予めご了承ください。

After you participate in your first WCA competition, your profile will be made publicly like this link, including some of your personal information (name, nationality, and gender) and your WCA competition results.
(Your date of birth will remain private, and registration of your photo is depends on your preference.)
For this reason, the WCA Delegate may ask you to present identification proof to verify your name, nationality, gender, date of birth that will be registered in your WCA account when you first join the WCA competition.


Feel free ask us if you have any question after find Frequently Asked Questions.


  • 18歳未満の方の参加には、保護者の同意が必要です。
  • 個人情報の取扱は、WCAプライバシーポリシーに準じます。
  • 参加者の計測結果、名前、国籍、性別はインターネット上に公開されます。
  • 生年月日および連絡先は、本人の同意なく公開されません。
  • 広報活動や記録を目的に、撮影した写真や映像を大会運営者のHPなどで使用することがあります。
  • 各種メディアにより、大会の様子が撮影されたり、大会参加者が取材を受けることがあります。
  • COVID-19感染予防対策により、大会の中止がイベント直前に告知される場合があります。

Please agree the following precautions before registration:

  • If you are under 18 years of age, please get the consent of your parent before registration.
  • Personal data treatment follows WCA Privacy Statement.
  • Participant's name (full name), nationality, and gender will be disclosed on the Internet.
  • Birth date and contact information will not be disclosed to the outside without the consent of the person.
  • For the purpose of recording and PR, organizer may take photos / videos of the competition and use them on the website, SNS etc.
  • Competition may be filmed, and competitor may be interviewed by some media.
  • Competition may be canceled even after your registration is approved from some reason related to COVID-19.

Time limit

If you reach the time limit during your solve, the judge will stop you and your result will be DNF (see Regulation A1a4).
A cumulative time limit may be enforced (see Regulation A1a2).


The format describes how to determine the ranking of competitors based on their results. The list of allowed formats per event is described in Regulation 9b. See Regulation 9f for a description of each format.

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