Blue Sharks at the Koto Kumin Matsuri: Rugby Booth, Parade and Mascot Sametaro at Kiba Park

Key Takeaways: Shimizu Koto Blue Sharks bring players and mascot Sametaro to the 44th Koto Kumin Matsuri at Kiba Park on October 17–18, 10:00–16:00. A rugby booth with darts and lineout jumps runs both days, the opening parade starts at 11:00, and Sametaro’s mascot show is at noon on October 17. The club’s press release prints the year as 2025, so check the official announcement for dates and fees.
Koto City festival · Rugby meets the neighborhood

Blue Sharks Bring Rugby to the Koto Kumin Matsuri

Players and the shark mascot Sametaro join the festival at Kiba Park for two days of parades, a mascot show and hands-on rugby games.

Oct 17–18 · 10:00–16:00

Shimizu Koto Blue Sharks (清水建設江東ブルーシャークス), the rugby club based in Koto City, Tokyo, will take part in the 44th Koto Kumin Matsuri Chuo Matsuri (江東区民まつり 中央まつり). Koto City is the club’s host town, so this is a home event for the team: instead of watching from a stadium seat, neighbors get to meet the players up close, try a lineout jump, and wave at the club’s mascot, Sametaro (鮫太朗).

About the dates: the club’s press release, published October 9, 2026, lists the festival as Saturday, October 17 and Sunday, October 18, but writes the year as 2025. Those weekdays only line up in 2026, so this guide treats it as the 2026 festival. Please double-check the dates in the official announcement before you go.

Festival basics: dates, hours and venue

Three Blue Sharks players in blue shirts being interviewed by a reporter in front of a TV camera
Image: Shimizu Koto Blue Sharks (from the PR TIMES press release)
Event44th Koto Kumin Matsuri Chuo Matsuri
DatesSaturday, October 17 and Sunday, October 18 (see the note above about the year)
Hours10:00–16:00
VenueKiba Park (都立木場公園), Multipurpose Plaza (KOTO Sports Field) and other areas
Blue Sharks appearancesPlayers and Sametaro on both days
AdmissionNot stated in the release. Check the official announcement.
OrganizerKoto Kumin Matsuri Chuo Executive Committee (江東区民まつり中央実行委員会)

Kiba Park is a big space, and the club notes that the festival spreads beyond the KOTO Sports Field. If you’re planning a full day out, our guides to the Shibaura Canal Festival and the Setagaya Tamagawa Fireworks show how other local Tokyo events this autumn run.

Where to catch the players and Sametaro

The blue shark mascot greeting children at an outdoor event
Image: Shimizu Koto Blue Sharks (from the PR TIMES press release)

Two time slots are fixed. Everything else depends on when Sametaro decides to wander out.

TimeWhat’s happeningDay
11:00Opening parade with Sametaro and playersNot specified
12:00Mascot character show starring SametaroOctober 17
All dayRugby booth with darts and lineout jumpsBoth days
RandomSametaro pops up around the groundsBoth days

The release doesn’t say whether the parade runs on one day or both, so if seeing the players march matters to you, Saturday is the safer bet: it also has the noon mascot show. Sametaro is around on both days, but only for limited stretches. The club’s advice is simply to say hello if you spot him.

The rugby booth: darts and lineout jumps

Players and children playing in front of a giant dart target at an event
Image: Shimizu Koto Blue Sharks (from the PR TIMES press release)

The club is bringing two of its regular crowd favorites to a booth that stays open on both days.

Rugby darts

A target game built around a rugby ball. It’s pitched at everyone from small kids to adults, so the whole family can take a turn.

Lineout experience

Try the jumper role from a real lineout, the set play where a player is lifted to catch the throw-in.

Players in blue shirts lifting a child holding a rugby ball outdoors
Image: Shimizu Koto Blue Sharks (from the PR TIMES press release)

Whether the booth is free or has a fee isn’t mentioned, so bring a little cash or a payment app just in case. If your phone tends to run flat on long days out, our d VALUE PASS guide explains how to rent ChargeSPOT power banks for free.

Things the press release doesn’t say

The announcement is from the club, not the festival, so a few practical details are missing. Before heading out, check the official festival information for:

  • The correct year and dates (the release shows 2025)
  • Admission or booth fees
  • Nearest stations and how to get to Kiba Park
  • What happens if it rains
  • Which day or days the opening parade runs

Looking for more weekend plans? The Asoview campaign with up to ¥3,000 off leisure spots and the Musashino Art University festival are both coming up this month.

FAQ

Q. When are the Blue Sharks at the Koto Kumin Matsuri?
Players and mascot Sametaro appear on both festival days, October 17 and 18, from 10:00 to 16:00. The release prints the year as 2025, so confirm the dates in the official announcement.
Q. When is Sametaro’s character show?
The mascot character show starts at 12:00 on October 17.
Q. What can kids do at the Blue Sharks booth?
The booth runs on both days with rugby darts, a target game for all ages, and a lineout experience where you can try the jumper role.
Q. Is there an entry fee?
The press release doesn’t mention admission or booth fees. Check the official festival information before you go.

Source: Shimizu Koto Blue Sharks press release (PR TIMES)

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