オープンウォータースイム

English Entry for 2025


✉️ For international participants:
We are currently accepting overseas entries via email.
Please contact us with your name, race name of interest:
👉 Please contact us for race registration in English via contact form.
We will reply with detailed instructions.

Open Water Swim Series

(Swim competitions held in natural environments such as the sea and lakes) Individual distances range from 500m to 3km.
*Click here for the Open Water Swim Series photo gallery.
*Our official online shop is here.

NO Date Event Name Venue / Event URL
1 May 25 (Sun) 10th World Heritage Okinawa Seifa-utaki Open Water Swim Race
ENTRY START
Azama Sansan Beach, Nanjo City, Okinawa Apply
2 June 8 (Sun) 20th Aichi Nishiura Onsen Open Water Swim Race
ENTRY START
Nishiura Onsen Palm Beach, Gamagori City, Aichi Apply
3 June 15 (Sun) 8th Setouchi Awaji Island Open Water Swim Race
ENTRY START
Keino-matsubara Beach, Minamiawaji City, Hyogo Apply
4 June 22 (Sun) 3rd Ehime Iyo no Kuni Open Water Swim Race
ENTRY START
Goshikihime Beach Park, Iyo City, Ehime Apply
5 June 28 (Sun) Under Consideration
6 July 5 (Sat)
Changed to June 28 (Sat)
5th Fukuoka Hakata Bay Open Water Swim Race
ENTRY START
Marina Town Beach Park, Fukuoka City, Fukuoka Apply
7 July 13 (Sun) 12th Here is Yokosuka Open Water Swim Race
ENTRY START
Nagahama Beach, Yokosuka City, Kanagawa Apply
8 July 20 (Sun) 10th Udon Prefecture Sanuki Open Water Swim Race
NEW!!ENTRY START
Tsuda no Matsubara Beach (Seto Inland Sea National Park), Sanuki City, Kagawa Apply
9 August 31 (Sun) 13th Osaka Sennan Open Water Swim Race
NEW!!ENTRY START
Tarui Southern Beach, Sennan City, Osaka Apply
10 September 7 (Sun) 19th Chiba Minamiboso Open Water Swim Race
NEW!!ENTRY START
Iwai Beach, Minamiboso City, Chiba Apply
11 September 14 (Sun) 31st Atami Open Water Swim Japan Grand Prix
NEW!!ENTRY START
Taga Nagahama Beach, Atami City, Shizuoka Apply
12 September 28 (Sun) 1st Saikai National Park Goto Islands Open Water Swim
NEW!!ENTRY START
Takahama Beach, Goto City, Nagasaki Apply
13 October 5 (Sun) 4th Nanki Shirahama Open Water Swim Race
NEW!!ENTRY START
Shirahama Town, Wakayama Prefecture, Shirahama Beach Apply
14 October 19 (Sun) 9th Okinawa Nago Open Water Swim Race
NEW!!ENTRY START
Nago City, Okinawa Prefecture, 21st Century Forest Beach Apply
Please note that the above schedule is subject to change without notice regarding the event dates or locations.

 

Aquathlon Series

(Swim & Run Competition) There are Short (Swim 500m & Run 5km) and Long (Swim 1.5km & Run 10km) categories.

*Click here for the Aquathlon Series photo gallery.
*Our official online shop is here.

NO Date Event Name Venue / Event URL
1 May 18 (Sun) 12th Osaka Sennan Aquathlon
ENTRY START
Tarui Southern Beach, Sennan City, Osaka Apply
2 June 1 (Sun) 14th Chiba Minamiboso Aquathlon
ENTRY START
Iwai Beach, Minamiboso City, Chiba Apply
3 June 14 (Sat) 3rd Setouchi Awaji Island Aquathlon
ENTRY START
Keino-matsubara Beach, Minamiawaji City, Hyogo Apply
4 July 6 (Sun)
Changed to June 29 (Sun)
10th Fukuoka Hakata Bay Aquathlon
ENTRY START
Marina Town Beach Park, Fukuoka City, Fukuoka Apply
5 September 21 (Sun) 14th Aichi Nishiura Onsen Aquathlon
NEW!!ENTRY START
Nishiura Onsen Palm Beach, Nishiura Town (Aichi Prefecture) Apply
6 October 12 (Sun) 3rd Ehime Iyo no Kuni Aquathlon
NEW!!ENTRY START
Goshikihime Beach Park, Iyo City (Ehime Prefecture) Apply
7 October 26 (Sun)
Changed to November 2 (Sun)
13th Shizuoka Minami-Atami Aquathlon
NEW!!ENTRY START
Kami-Taga Nagahama Beach Park, Atami City (Shizuoka Prefecture) Apply
8 November 30 (Sun) 9th Okinawa Nago Aquathlon
NEW!!ENTRY START
21st Century Forest Beach, Nago City (Okinawa Prefecture) Apply
Please note that the above schedule is subject to change without notice regarding the event dates or locations.
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