In 1978, U.S. Naval Commander John Collins and his wife Judy issued a challenge. They proposed combining Oahu’s 2.4 mile swim race, 112 mile bike race, and 26.2 mile marathon. On February 18, 1978 fifteen competitors, including Collins, traveled to Waikiki to take on the first-ever IRONMAN challenge.
'Swim 2.4 miles, bike 112 miles, run 26.2 miles - BRAG FOR THE REST OF YOUR LIFE. "
- John Collins, IRONMAN Founder
IRONMAN is more than the world's most challenging endurance event, IRONMAN is a lifestyle.
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IRONMAN Triathlon
Who are your podium picks for this Saturday?🍿
🌴 Athletic Brewing IRONMAN 70.3 Oceanside
🗓️ Saturday, March 28 6am PT | 9am ET | 1pm GMT
📺 Live & For Free | ironman.com/proseries, YouTube, DAZN, L'Équipe, iQIYI & more
🏆 2026 Experience Oman IRONMAN Pro Series
#IM703Oceanside #ExperienceOman #IRONMANtri
6 months ago | [YT] | 329
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IRONMAN Triathlon
Two races. Two courses. One World Championship.
The 2025 IRONMAN World Championship brought the Pro Men to the promenade of Nice and the Pro Women to the lava fields of Kona, and neither race disappointed.
IRONMAN World Championship 2025 Documentary - coming soon.
7 months ago (edited) | [YT] | 13
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IRONMAN Triathlon
This is where it begins.
The defending #IMProSeries champions are back, the Kiwi favorites are racing at home, but the strength of this field doesn't care who you are.
🇳🇿 ANZCO Foods IRONMAN New Zealand Taupō
🗓️ Saturday, March 7, 7.15am NZDT (Friday, March 6, 1.15pm ET / 6.15pm GMT)
🏆 2026 Experience Oman IRONMAN Pro Series
#ExperienceOman #IMNZ #IRONMANtri
7 months ago | [YT] | 315
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IRONMAN Triathlon
Two women who played a huge part in a historic race yesterday🫶
📷 Pro Tri News
11 months ago | [YT] | 2,235
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IRONMAN Triathlon
Welcome to race week😍
We are just 5 days away from the IRONMAN World Championship here in Kona🌺
🏆 IRONMAN World Championship, Kona
🗓️ Saturday 11 October
📺 Live & Free on proseries.ironman.com, YouTube, Outside TV & more
#IRONMANtri #IMWC #Kona2025
11 months ago | [YT] | 330
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IRONMAN Triathlon
This start list is unreal…🔥
Defending champions, rising stars, and the fastest women IRONMAN has ever seen, all set to battle it out on triathlon’s most iconic stage. 🌺
The 2025 IRONMAN World Championship, Kona, is shaping up to be one for the history books 🤯
🏆 IRONMAN World Championship, Kona
🗓️ Saturday 11 October
📺 Live & Free at proseries.ironman.com, YouTube, Outside TV & more
#IMWC #IRONMANtri #Kona2025
1 year ago | [YT] | 482
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IRONMAN Triathlon
It’s finally here, it’s IRONMAN World Championship race week😍
The best male IRONMAN athletes in the world are getting ready to battle it out in Nice for World Title glory🏆
#IRONMANtri #IMWC #Nice2025
1 year ago | [YT] | 398
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IRONMAN Triathlon
The Austrian mountains are calling😍
The #IMProSeries descends on Zell Am See next week for the final race before World Championship season😤
🇦🇹 IRONMAN 70.3 Zell Am See
🗓 Sunday, August 31, 10:30am CET | 04:30am ET | 8:30am GMT
📺 Live & Free at proseries.ironman.com, YouTube, Outside TV & more
#IRONMANtri #IM703Zell
1 year ago | [YT] | 198
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IRONMAN Triathlon
Big names. Big stakes. Swansea awaits 🏴🔥
#IM703Swansea returns next weekend with a stacked #IMProSeries start list featuring defending champions Harry Palmer🇬🇧 and Nikki Bartlett🇬🇧, reigning IRONMAN Pro Series champ Kat Matthews🇬🇧, Danish powerhouse Magnus Ditlev🇩🇰, along with Leon Chevalier🇫🇷, Dani Kleiser🇩🇪 and many more ready to battle it out.
Who’s your pick to take the win?👇
🏴 IRONMAN 70.3 Swansea
🗓 Sunday, July 13 | 6:30am BST / 1:30am ET / 5:30am GMT
📺 Live & Free | proseries.ironman.com, YouTube, Outside TV, DAZN, iQIYaI & more
#IRONMANtri #EverySecondMatters
1 year ago | [YT] | 198
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IRONMAN Triathlon
The tropics are calling🌴🔥
#IMCairns is next up in the #IMProSeries and the start list is stacked with athletes chasing crucial IRONMAN Pro Series points down under🇦🇺
🌴 Cairns Airport IRONMAN Cairns
🗓 Sunday, June 16 | 7:00am AEST, Saturday 9:00pm GMT
📺 Live & Free | proseries.ironman.com, YouTube, Outside TV, DAZN, iQIYI & more
#IRONMANtri #IMProSeries
1 year ago | [YT] | 164
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