Amid Relaxed Standards, Japan Reveals 34-Strong World Championships Roster

2025 JAPAN SWIM

The 2025 Japan Swim spanned Thursday, March 20th through Sunday, March 23rd and brought some of the best and brightest athletes to the Tokyo Aquatics Centre in the hopes of making the squad for this summer’s World Championships.

As a deviation from past years, the Japanese Swimming Federation (JASF) relaxed its qualification criteria for Singapore. Instead of historically stiffer standards than the World Aquatics ‘A’ standards, the JASF defaulted to those ‘A’ standards to represent the benchmarks athletes needed to surpass to make the grade.

When all was said and done, a total of 34 swimmers were named to the Japanese World Championships roster, including 19 men and 15 women.

The age range spans 17 years to 34 years, showing the depth and dedication of the Japanese top-tier contingent.

Newly minted High School National record-setter Tatsuya Murasa is just 17 years of age while 2024 Olympic finalist Satomi Suzuki is 34 years old.

Of note, Olympic medalist Daiya Seto is absent from the roster, his first time missing out on a World Championships lineup since 2013. We reported how the 30-year-old withdrew from the Japan Swim due to still feeling fallout from the broken rib he suffered last year.

Additionally, 2020 Olympic Games silver medalist in the 200m fly, Tomoru Honda, is missing. The 23-year-old placed well out of the top 2 in the men’s 200m fly but previously said he most likely would not swim in Singapore even if he had qualified.

We’ll keep an eye on the likes of 3-time Olympian Rikako Ikee, University of Tennessee commit Mizuki Hirai, Olympic finalist Mio Narita, mainstay 200m breast powerhouse Ippei Watanabe and more as they take on the world in Singapore.

Men’s Roster

Kazushi Imafuku
Yamato Fukasawa
Kosuke Makino
Katsuhiro Matsumoto
Tomoyuki Matsushita
Riku Matsuyama
Naoki Mizunuma
Tatsuya Murasa
Akira Namba
Asaki Nishikawa
Kodai Nishiono
Hidekazu Takehara
Taikan Tanaka
Taku Taniguchi
Takumi Terada
Genki Terakado
Ippei Watanabe
Toshinari Yanagisawa
Masaki Yura

Women’s Roster

Reona Aoki
Airi Ebina
Yasuki Fujimoto
Mizuki Hirai
Rikako Ikee
Nagisa Ikemoto
Ichika Kajimoto
Kotomi Kato
Waka Kobori
Shiho Matsumoto
Miyu Namba
Mio Narita
Satomi Suzuki
Miki Takahashi
Chiaki Yamamoto

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Swimmerfromjapananduk
7 hours ago

Finally we actually take a full squad, about time

Professor Goon
20 hours ago

Kudos to the Japanese Federation for realizing their Herculean qualifying times were holding them back from greater success internationally, should be a great summer for them.

dg5301
Reply to  Professor Goon
18 hours ago

My thoughts exactly. Having high standards might sound good in theory, but there’s no substitute for stacking some experience at big meets for their rising stars.

Tencor
1 day ago

It appears Peaty won’t be participating in this year’s world championships

https://x.com/swimcoverage/status/1904211348227293518

Scuncan Dott v2
Reply to  Tencor
23 hours ago

Yeah I mean he kinda confirmed that after Paris. Of note, Medi Harris is also not on the entry list.

Tom Dean’s only doing the 100 Free after taking a break after Paris and many are changing from their normal event lineup (Wood doing the 4IM, Guy doing the 4Free/2Fly with no 100 Fly/100 Free, Duncan doing the 2Fly over the 100 free etc):

https://www.swimmingresults.org/events/agbchamps25/bsprogramme.pdf

Last edited 23 hours ago by Scuncan Dott v2
Kelsey
Reply to  Scuncan Dott v2
10 hours ago

Haven’t some of them pre qualified that’s what Duncan’s IG said

Scuncan Dott V2
Reply to  Kelsey
9 hours ago

Individual Olympic medalists are only pre qualified for Worlds in the event they medaled in (Richards – 200 Free, Proud – 50 Free, Scott – 2IM)

Olympic relay champions who swam in the Paris final are also pre-qualified, but only for that relay, so Richards & Scott again as well as Dean & Guy are selected for the 4×200.

Scotty
Reply to  Tencor
22 hours ago

No Wilby either. GB mens breaststroke (and by extension medley relay) really in a shocking place now.

Dee
Reply to  Scotty
9 hours ago

A far better place than I feared I would be a year ago, when there was nobody on the horizon – Then popped up Max Morgan & Filip Nowacki; Now 1 & 2 on the 16yo all time lists (Max almost 2s faster than the pre-2024 record, Filip almost 1s faster – and in an event we have real history!).

none
Reply to  Tencor
20 hours ago

No one cares about him, he is useless, a sore loser. At the Paris Olympics, he struggled to accept the fact that the British men’s mixed relay did not reach the podium, and he even spread hate speech in a media interview saying that the competition was unfair, which shows that he can’t afford to lose. Even if he enters the world championships, he will be beaten by Qinhaiyang!

Last edited 20 hours ago by none
Joel
Reply to  none
17 hours ago

???????

none
Reply to  Joel
16 hours ago

He was silent when he won silver in the 100m breaststroke, and when he did poorly in the relay and didn’t finish fourth on the podium, he started shouting that the race was unfair. A sore loser

Last edited 16 hours ago by none
Scotty
Reply to  none
12 hours ago

Someone is living rent free in your mind!!

snailSpace
Reply to  none
8 hours ago

You Chinese bots are the worst. Peaty is leagues ahead of Qin.

Stingy
Reply to  snailSpace
2 hours ago

lmao still claiming that we are bots? Cant cope with the fact that people have different opinions than yours?

RealCrocker5040
1 day ago

The Watanabe consistency is insane

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