2024 Middle & long Distance Triathlons

The most frequently asked questions at Japan Multisport centers on races and sports events. In particular, folks are very interested in the middle to long distance races in Japan. Below is the complete list of triathlons longer than Standard/Olympic Distance that took or will take place in Japan in 2024.  

It might seem early but if you're pursuing triathlon in Japan, it's not too early to start planning your 2025 triathlon season. Generally, the season starts in Okinawa in April and ends in Okinawa in November. Triathlons are scarce in July and August due to the heat and humidity of summer in Japan - it's a lot of liability for race organizers to bear! 

Keep in mind that many (but not all) triathlons require Japan Triathlon Union (JTU) membership to sign up. JTU membership is only available to residents of Japan. In recent years, some races have began to offer one-day memberships for an additional fee (typically 1-2,000 JPY). Whatever your circumstances are, contact us if you'd like to learn more about racing in Japan.

APRIL 
14 38th Miyakojima Triathlon (Okinawa) 

• S 3k, B 123k, R 35k
• Lottery entry applications: Oct 1-31, 2022 (results Nov 24)
• JTU Age Group Championship Series (Long Distance) ranking event

MAY
19 Nagaragawa Middle Triathlon 102 (Gifu)

• S 2k, B 80k, R 20k
• General Entry: January 25-Mar 11 2024
• JTU Age Group Championship Series (Long Distance) ranking event
  
  

JUNE
9 Fukuyama Wakamachi Triathlon (Hiroshima)

• S 1.8k, B 80k, R 18k
• General Entry: Jan 22-Apr 5, 2024

23 Goto Nagasaki International Triathlon (Niigata)

• A Type: S 3k, B 154.8k, R 42.2k
• B Type: S1.6k, B 101.7k, R 21.1k
• General Entry: Jan 14-Feb 29, 2024 (FCFS)
• JTU Age Group Championship Series (Long Distance) ranking event

23 37th Triathlon in Tokunoshima (Kagoshima)

• S 2k, B 75k, R 20k
• General Entry: Dec 11, 2023-Mar 29, 2024

​23 2nd Suwako 8Peaks Triathlon (Nagano)

• S 1.9k, B 66.2k, R 20k (race day: S 950m, B 66.2k, R 16k)
• General Entry: Dec 15, 2023-Feb 20, 2024
• Second Round: from Feb 23, 2024

• JTU Age Group Championship Series (Long Distance) ranking event

30 30th Sendai Bay Shichigahama Triathlon (Miyagi)

• S 2.25k, B 55.3k, R 14.4k (and other distances)
• General Entry: Mar 29-Jun 16, 2024
• JTU Age Group Championship Series (Long Distance) ranking event

JULY
14 Kaike Triathlon (Tottori)

• S 3k, B 140k, R 42.2k
• General Entry: Mar 1-Mar 31, 2024

AUGUST
18 Hokkaido Triathlon (Hokkaido)

• A Type: S 2k, B 130.7k, R 23.1k
• B Type: S 2k, B 91.9km R 23.1km
• General Entry: Feb 1-Jul 2, 2024

SEPTEMBER
1 Sado International Triathlon (Niigata)

• Type A: S 4k, B 190k, R 42.2k
• Type B: S 2k, B 108k, R 21.1k
• General Entry: Mar 1-15, 2024 (lottery if registrations exceed capacity)
• Second Round: Apr 1-19, 2024
• JTU Age Group Championship Series (Long Distance) ranking event

8 Irago Triathlon (Aichi)

• Type A: S 2.25k, B 70k, R 18k
• Type B: S 1.5k, B 42k, R 10k
• General Entry: Mar 30-May 19, 2024 
• Second Round: June 15-21, 2024
• JTU Age Group Championship Series (Long Distance) ranking event

15 IRONMAN Japan South Hokkaido (Hokkaido)

• S 3.8k, B 180k, R 42.2k
• General Entry: from Dec 19, 2023
• JTU Age Group Championship Series (Long Distance) ranking event

15 Kasumigaura Triathlon Festa (Ibaraki)

• S 2k, B 71k, R 20k (and other distances)
• General Entry:  Jun 15-Aug 26, 2024
• JTU Age Group Championship Series (Long Distance) ranking event

29 3rd Nagaragawa Middle Triathlon 102 Autumn (Gifu)

• S 2k, B 71k, R 20k (and other distances)
• General Entry: Jun 20-Aug 26, 2024
• JTU Age Group Championship Series (Long Distance) ranking event

OCTOBER 
8 11th Kujukuri Triathlon (Chiba)

• S 1.9k, B 90k, R 21k (and Standard Distance)
• General Entry: Apr 16-Aug 31, 2024

20 3rd Lake Biwa Triathlon (Shiga)

• S 1.9k, B 80k, R 20k (and Standard Distance)
• General Entry: Apr 1-Jun 30, 2024
• JTU Age Group Championship Series (Long Distance) ranking event

NOVEMBER 
3 37th Izena 88 Triathlon (Okinawa)

• S 2k, B 66k, R 20k
• General Entry: Jul 1-31, 2024

17 1st Okinawa Kin Triathlon (Okinawa)

• S 2k, B 70k, R 22k
• General Entry: Jul 10-Sep 15, 2024
• JTU Age Group Championship Series (Long Distance) ranking event