Average IRONMAN 70.3 Time

Is six hours a good 70.3?

The field, by percentile

10% of finishers came in at or under the first figure, 25% at or under the second, and so on. Nothing is published between these anchors, so anything in between is interpolated.

Finishers only. This says nothing about how many starters did not finish.

Median 70.3 finish time by age group and sex

Every published cell with its finisher count. These samples are large enough that even the 65-69 cells rest on thousands of finishes, which is not true at full distance.

Note how flat the curve is through the middle: men from 18-24 to 45-49 sit inside about nine minutes of each other. The age penalty at this distance does not really begin until the fifties.

What the half distance says about ageing

Median split by leg

These do not sum to the median finish, and are not meant to: each leg's median is its own percentile and transitions are excluded.

The bike is 50% of the median day. That is why bike pacing decides more of a 70.3 outcome than swim ability or run talent.

Frequently asked questions

What is the average 70.3 time?

The median is 5:52:23 across 1,364,401 finishes from 1007 races between 2004 and 2026. The mean is 5:56:45. That sample is larger than the full-distance one by a wide margin, which makes the 70.3 age-group cells the most reliable finish-time benchmarks in the sport.

Is a sub-6 70.3 a good time?

Yes - comfortably above the middle. Six hours is faster than the median of 5:52:23 and sits between the 25th and 50th percentile bands, so it beats well over half the field. To reach the fastest quarter you need 5:16:20, and the fastest tenth is 4:47:44.

Does age matter less at 70.3 than at full distance?

In absolute terms the age penalty is much smaller, but as a share of the race it is similar. Across the published male cells from 30-34 to 75-79 the spread is about 105 minutes at 70.3 against about 245 minutes at 140.6. That is roughly the same proportion of a race half the length, which suggests the ageing cost scales with duration rather than being a fixed penalty.

What is a good 70.3 time by age group?

Use your own cell rather than the field median. Men aged 30-34 sit at 5:38:44 and women aged 30-34 at 6:07:10. The full table below gives every published cell with the number of finishes behind it, which matters most in the oldest groups where samples get thin.

What are the median 70.3 splits?

Swim 38:38, bike 2:57:09, run 2:04:45. As at full distance these do not sum to the median finish: each is its own percentile and transitions are excluded. The bike is 50% of the median day, which is why bike pacing decides more of a 70.3 than anything else.

Why is the 70.3 sample bigger than the Ironman one?

Because far more people race the half distance. The published 70.3 sample is 1,364,401 finishes against 786,711 at full distance - roughly 1.7 times as many, from 1007 races on 137 courses. Larger samples make the age-group cells here more trustworthy than their full-distance equivalents.

Sources

One source, because only one publishes this with a stated sample and per-age-group cells. Reproduced with attribution rather than restated as our own.

1. [1]Average IRONMAN 70.3 finish time statisticsAggregated analysis

   tritimes.org · tritimes.org · data year 2026 · retrieved 2026-08-29

   States its sample on the page - 1,364,401 finisher results from 1,007 races on 137 courses, 2004-2026 - and discloses its upstream source as the results API behind IRONMAN's official results. This is the largest triathlon finish-time sample published anywhere with per-age-group cells.

All outbound links here are marked nofollow. They are references so you can check our figures, not endorsements. Where a source is labelled Secondary it states a number without saying where it came from, and we have flagged it rather than presenting it as established.

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