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Ironman 70.3 Weymouth 2018: Age Group Results and Kona Qualification

I’m going to take a quick detour from the usual Ironman analysis for an analysis of Ironman 70.3 Weymouth. Conditions were rough for this year’s race with winds and rain throughout the swim and bike. The rough sea conditions saw the swim shortened which impacts on the times we’re comparing for this year’s race.

Distribution of Finisher Splits at Ironman 70.3 Weymouth 2018 Compared with 2016-2017

The distributions clearly show a shortened swim with much faster times as a consequence. This is followed by a slower bike in the rough conditions – about 10 minutes slower at the median. The race finished with a run that trends about the same as the previous two year. Overall this years race comes out much the same at the median and faster at the front. The shortened swim was enough to counter the slower bike and at the front of the race where conditions had less impact it meant times were often faster.

Median Splits by Age Group at Ironman 70.3 Weymouth 2018
Median Splits by Age Group at Ironman 70.3 Weymouth 2016-2017

Medians show the same pattern – the swim is much faster and the bike slower – across the age groups.

DNS and DNF Rates at Ironman Weymouth 70.3
Year
Listed Athletes
Swim Finish
Swim DNS/DNF
Bike Finish
Bike DNF
Run Finish
Run DNF
Overall DNS/DNF
2016
1765
1404
20.5%
1394
0.7%
1345
3.5%
23.8%
2017
2001
1996
0.2%
1921
3.8%
1869
2.7%
6.6%
2018
2099
2097
0.1%
1926
8.2%
1876
2.6%
10.6%

The first year of stats incorporates DNS numbers, hence the really high percentage in the swims. Otherwise the key thing to note here is the doubling in DNFs on the bike this year. Conditions were rough and it saw a much higher drop out.

Changes in Male Finishing Times by Position at Ironman 70.3 Weymouth
Changes in Female Finishing Times by Position at Ironman 70.3 Weymouth

Checking times by position in age group and viewing the trends shows that the slowing in times is relatively small this year. It’s clear that the front of pack weren’t impacted by the weather and times naturally benefited from a shortened swim. Further back, things do start to slow, but not hugely for the places we’re looking at.

Top Twenty Male Performances by Age Group at Ironman 70.3 Weymouth 2018
Top Twenty Female Performances by Age Group at Ironman 70.3 Weymouth 2018

Top twenty age groups placings show this year’s race trends a little faster than last year for those up front. 2016 was slower than either of them pulling back the average times. So this years race would have been slower with a full length swim, but as it was came in faster at the front and average at the middle of the pack.

You can access a spreadsheet of the full results from Ironman 70.3 Weymouth 2018 on my Google Drive.

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Find out what it takes to place in your age group or to qualify for the Ironman Worlds Championships in Kona.

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