AnIronman 70.3, also known as aHalf Ironman, is one of a series of long-distancetriathlon races organized by theWorld Triathlon Corporation (WTC). The "70.3" refers to the total distance in miles (113.0 km) covered in the race, consisting of a 1.2-mile (1.9 km) swim, a 56-mile (90 km) bike ride, and a 13.1-mile (21.1 km) run. Each distance of the swim, bike, and run segments is half the distance of that segment in anIronman Triathlon. The Ironman 70.3 series culminates each year with a World Championship competition, for which competitors qualify during the 70.3 series in the 12 months prior to the championship race. In addition to the World Championship race, Ironman 70.3 championship competitions are also held for the European,Asia-Pacific, and Latin America regions.[1][2][3]
The time needed by an athlete to complete a 70.3 distance event varies from race to race and can be influenced by external factors. These factors include the terrain and the total elevation gained and lost on the course, weather conditions, and course conditions. Finish times range from sub-four-hour completion times by elite-level athletes to the imposed race cutoff, which is commonly 8 hours and 30 minutes after the start time.[4][5][6]
The first Half Ironman branded race was Half Ironman UK, which was raced in 2001.[7][8] However, prior to the launch of the 70.3 series in 2005, races were then known as Half Ironman before adopting the Ironman 70.3 label.[9] The oldest half-iron-distance race, though not under the WTC umbrella at the time, is theSuperfrog Triathlon, which began in 1979.[10][11]
The number of qualification events within the 70.3 series has grown since its inception, growing to match the popularity of the sport and interest in the distance.[12] Since the first year of the Ironman 70.3 Championship race in 2006 the series grew from 14 events to over 60 events in the span of seven years. The2016 series saw 89 events worldwide, with the biggest one-year increase in the number of events coming between the2011 and2012 series when the number of races grew from 38 to 57.
Since 2022,Vietnam'sautomobile makerVinFast was the first ever naming rights partner for2022 Ironman World Championship and2023 Ironman 70.3 World Championship.[13]
Due to the lack of course certification for half-iron distance races, there is no official world record for 70.3 events. The fastest times to complete a half-iron distance race for men and women were both set at the 2019 Ironman 70.3 Bahrain byKristian Blummenfelt andHolly Lawrence.[14] While these remain the fastest times for any Ironman-branded 70.3 race, they were achieved on a 53.9-mile (86.8 km) bike course,[15] noticeably less than the standard 56-mile (90 km) course for 70.3 events.
| Event | Record | Athlete | Nationality | Date | Location | Ref | |
|---|---|---|---|---|---|---|---|
| Men | Ironman 70.3 Dubai | 3:26:06 (22:49-0:52-1:53:28-1:02-1:07:56) | Marten Van Riel |  Belgium | March 5, 2022 | Dubai, United Arab Emirates | [16] |
| Women | Ironman 70.3 VinFast | 3:53:02 (24:45-2:07:52-1:18:05) | Taylor Knibb |  United States | August 26, 2023 | Lahti, Finland | [18] |
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The Athletes' Choice Award is awards picked by the athletes to determine what is the best choice. It could also be referred to as Global Choice Award. Now they are split between the regular Ironman and the 70.3. Now what is voted on are overall satisfaction, most recommended, best swim, best bike, and best run.[19]
2024 Ironman 70.3 Athletes’ Choice Awards
| Position | Overall Satisfaction | Most Recommended | Best Swim | Best Bike | Best Run |
|---|---|---|---|---|---|
1[edit] | Musselman (Geneva, NY) | Bangsaen Thailand | Santa Cruz | Musselman | Coeur d'Alene |
2[edit] | Nice | Rio de Janeiro | Aracaju Sergipe | Elsinore | Emilia Romagna |
3[edit] | Vichy | Michigan | Panama | Santa Cruz | Oregon |
4[edit] | Aix en Provence | Aracaju Sergipe | Langkawi | Michigan | Punta del Este |
5[edit] | Rio de Janeiro | San Juan | Washington Tri Cities | Bangsaen Thailand | North Carolina |
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