2021 Japan Triathlon Calendar (as of April 14, 2021)

open for registration / registration TBA

Izu Ohshima Triathlon (Tokyo)

Race Day: June 5
Registration: until May 9
S 1.5 | B 40 | R 10
S .75 | B 20 | R 5
Details

Gamagori Orange Triathlon (Aichi)

Race Day: June 20
Registration: until May 17
S 1.5 | B 40 | R 10
S .75 | B 20 | R 5
S .375 | B 10 | R 2.5
Details

Kisarazu Triathlon (Chiba)

Race Day: June 20
Registration: April 12 to May 31 (FCFS)
S 1.5 | B 40 | R 10
Details

Aquathlon Splash and Dash in Onoura (Aichi)

Race Day: June 27
Registration: until May 31
S 1 | R 5
S .5 | R 3
Kids (S 50m | R .5), (S .1 | R 1), (S .2 | R 2)
Junior (S .5 | R 3)
Relays
Details

Miyagi International Triathlon - Sendai Bay Shichigahama (Miyagi)

Race Day: July 4
Registration: until June 18
S 1.5 | B 40 | R 10
S .75 | B 26 | R 5
Kids (S 75m | B 1.3 | R 1)
Youth (S 150m | B 2.6 | R 1.5)
Details

Igosso Aquathlon (Kochi)

Race Day: July 4
Registration: until May 10
S 1.5 | R 10
Details

Nojiriko Triathlon (Nagano)

Race Day: July 4
Registration: until May 30
S 1.5 | B 45 | R 11
Details

Notojima Triathlon (Ishikawa)

Race Day: July 11
Registration: until May 10
S 1.5 | B 40 | R 10
Entry limited to residents of Toyama, Ishikawa, Fukui, Nagano, and Niigata prefectures
Details

Nagaragawa Triathlon (Gifu)

Race Day: July 18
Registration: April 14 to June 10 (FCFS)
S 1.5 | B 40 | R 10
JTU membership required
Details

Kisakata Triathlon (Akita)

Race Day: July 18
Registration: until June 10
S 1.5 | B 40 | R 10
S .75 | B 32 | R 5
Entry limited to residents of Akita prefecture
Details

Japan Short Course Triathlon Ako (Hyogo)

Race Day: July 18
Registration: until June 28
S 1.5 | B 40 | R 10
S .5 | B 20 | R 5
Details

Ako Triathlon (Hyogo)

Race Day: August 22
Registration: until July 27
S 1.5 | B 40 | R 10
S 1 | B 30 | R 5
Details

Imabari Triathlon (Ehime)

Race Day: August 29
Registration: until June 1
S 1.5 | B 40 | R 10
Details

Sado International Triathlon (Niigata)

Race Day: September 5
Registration: May 7 to May 21
S 2 | B 108 | R 21.1
Details

Triathlon Irago (Aichi)

Race Day: September 12
Registration: until April 21
S 2.25 | B 70 | R 20
S 1.5 | B 42 | R 10 (JTU membership not necessary)
Details

Sunport Takamatsu Triathlon (Kagawa)

Race Day: September 12
Registration: until April 25
S 1.5 | B 40 | R 10
9 lap bike course・wetsuit mandatory
Details

EXTERRA Japan (Gunma)

Race Day: September 18-20
Registration: April 1 to June 30
S 1.5 | MTB 25 | Trail Run 10
S .6 | MTB 10 | Trail Run 4
R 2 | B 25 | R 10
Kids (S .2 | MTB 6 | Trail Run 2)
Details

Sunrise Iwata Triathlon (Shizuoka)

Race Day: September 26
Registration: TBA
S 2 | B 70 | R 20
No aerobars allowed
Details

Maebashi Triathlon Festa (Gunma)

Race Day: October 3
Registration: TBA
S .5 | B 16 | R 4
Beginner (S .3 | B 7 | R 2.3)
Kids (S .1 | B 3 | R 1), (S 50 meters | B 1.5 | R .5)
Details

Kujukuri Triathlon (Chiba)

Race Day: October 3 (tentative)
Registration: TBA
S 1.9 | B 90.1 | R 21.1
Details

Chiba City Triathlon (Chiba)

Race Day: October 10
Registration: until May 31
S 1.5 | B 40 | R 10
S .75 | B 20 | R 5
S .15 | B 2.5 or 5 | R 1
・Wetsuit mandatory
Details

scheduled (registration closed)

April 11…Ishigaki Triathlon (Okinawa)
April 25…ASTC Asia Triathlon Championships Hatsukaichi (Hiroshima)
May 16…Yokohama International Triathlon (Kanagawa)
May 23…Lake Biwa Triathlon in Moriyama (Shiga)
May 23…Nagaragawa Middle Triathlon 102 (Gifu)

June 6…Kiso Sansen Triathlon (Gifu)
June 6…Sai no Kuni Specialized Cup (Saitama)
June 20…Miyazaki Sea Gaia Triathlon (Miyazaki)
June 26…Suwako 8 Peaks Triathlon (Nagano)

July 4…Ise Shima Triathlon (Mie)

August 29…Kaike Triathlon (Tottori)

September 19…Amakusa Takarajima International Triathlon (Aichi)
rescheduled from June 6

cancelled or postponed

Tomakomai Hasukappu Triathlon (Hokkaido)
Ajigawsawa Triathlon (Aomori) 
Taiheiyo Triathlon in Iwaki (Fukushima)
Maebashi Mini Triathlon (Gunma)
Teganuma Triathlon (Chiba)
Love Triathlon (Hyogo)
Nanki Shirahama Triathlon (Wakayama)
Biwako Triathlon in Omi Hachiman (Shiga)
Osaki Kamijima Triathlon (Hiroshima)
Triathlon Sagishima (Hiroshima)
Hatsukaichi Miyajima International Power Triathlon (Woodman) (Hiroshima)
Miyakojima Triathlon (Okinawa)
Ainan Triathlon (Ehime)
Fukuoka Triathlon (Fukuoka)
Nagasaki Saikai Triathlon (Nagasaki)(長崎)
Goto Nagasaki International Triathlon (Nagasaki)
Triathlon in Tokunoshima (Kagoshima)
Osaka Castle Triathlon (Osaka)

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