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Grand Sumo May Tournament 2027 (Natsu Basho) - Ticket Oosumo advance lottery

SumoRyogoku Kokugikan, Tokyo, JapanNihon Sumo Kyokai (Japan Sumo Association); official ticketing via Ticket Oosumo (operated with PIA Corporation)

Key facts

Ballot window: ~31 Mar 2027 to 4 Apr 2027estimated from last cycle
Results: 2027-04-06
Event dates: 2027-05-09 to 2027-05-23
Ballot type: free-entry draw
Entry cost: Free to enter. Requires free Ticket Oosumo member registration; no application fee. Winners pay face value plus issuing/system fees.
Eligibility: Anyone with a free Ticket Oosumo account (Japanese-language site; tickets issued in Japan). Overseas buyers use the official English site sumo.pia.jp/en: no lottery, first-come from the general-sale date.
Ticket prices if you win: Kokugikan: chair JPY 2,500-9,500 per person, tamari JPY 20,000 (16+), masu boxes approx JPY 17,000-78,000; weekday vs weekend pricing.

Official site ↗Add dates to calendar

Where it stands

As of 7 Jul 2026

Not yet open as of 2026-07-07. Lottery expected late March/early April 2027; general sale officially confirmed for 2027-04-10.

How to enter

Register free at sumo.pia.jp; apply online during the window; random draw; results ~18:00 JST via MyPage/email; automatic card charge between close and results. Kokugikan seat numbers hidden until ticket issuance.

Your odds

No official odds published; fully random draw; weekend/final-weekend days heavily oversubscribed.

Good to know

OFFICIAL: tournament dates (2027-05-09 to 05-23) and general sale 2027-04-10 confirmed on sumo.pia.jp (Japanese and English). ESTIMATED: Ticket Oosumo lottery approx Wed 2027-03-31 to Sun 2027-04-04, results ~Tue 2027-04-06, per the standard Tokyo pattern (~10 days before general sale, which for May basho falls ~4 weeks before day 1). Fan Club rounds expected mid-to-late March 2027 (2026 analog ran 2026-03-14 to 03-22 per the fan club lottery archive).

Quick answers

▸Is there a public ticket ballot for Grand Sumo May Tournament 2027 (Natsu Basho)?

Yes. It runs as a free-entry draw. ~31 Mar 2027 to 4 Apr 2027.

▸How much does entering cost?

Free to enter. Requires free Ticket Oosumo member registration; no application fee. Winners pay face value plus issuing/system fees.

▸Who can enter?

Anyone with a free Ticket Oosumo account (Japanese-language site; tickets issued in Japan). Overseas buyers use the official English site sumo.pia.jp/en: no lottery, first-come from the general-sale date.

Sources · last verified 7 Jul 2026 · confidence: medium

Dates marked as estimated are projected from the previous cycle and will be updated the moment the organizer confirms. Always check the official site before you plan travel.