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 .
If you are a registered competitor you may change your registered events until by contacting the organization team.
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).

3x3x3 Blindfolded

# Name Best Average Citizen of Solves
1 Keita Hayakawa (早川慶太) 18.30 NR 21.85 Japan 18.3024.1623.10
2 Masato Fujiwara (藤原正人) 19.46 DNF Japan 19.46DNF20.64
3 Keiichiro Taira (平佳一郎) 25.32 28.01 Japan 25.3229.9728.73
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