Ironman Louisville 2019: Age Group Results and Kona Qualification

While the Ironman World championship draws most of the focus, Ironman Louisville was also held over the weekend. It’s a large US race with the standard allocation of 40 Kona slots and a guarantee that none of the current Kona qualifiers will be racing.

Last year saw the swim course significantly shortened and this year the swim was cancelled due to algae. Swim and overall results from 2018 are excluded from comparisons. This year’s race times will obviously be significantly faster than usual.

Distribution of Finisher Splits at Ironman Louisville 2019 Compared with 2009-2018

Without a swim this year’s race was always going to be over an hour faster than usual. That shift in the overall distribution is clear. We also see a smaller shift in both bike and run distributions too. While their shape remains the same, they trend a little faster. The bike is slightly faster at the median, but the difference grows at the front of the race. The run see a more consistent shift from middle to front of pack. How much of this is due to the removal of the swim is hard to say.

DNF Rates at Ironman Louisville
Year
Starters
Finishers
Swim DNF
Bike DNF
Run DNF
Overall DNF
DQs
2009
2929
2351
20.5%
19.7%
2010
2550
2155
15.7%
15.5%
2011
2437
2275
0.2%
2.6%
4%
6.6%
2012
2586
2227
0.9%
6.2%
7.6%
13.9%
2013
2575
2347
1.4%
2.3%
5.6%
8.9%
7
2014
2076
1857
0.9%
3.5%
6.5%
10.5%
9
2015
2540
2363
0.5%
2.5%
4%
7%
8
2016
2630
2427
0.5%
1.9%
5.4%
7.7%
13
2017
2414
2253
0.7%
3.3%
2.7%
6.7%
6
2018
2366
1942
0.5%
11%
7.3%
17.9%
2
2019
1983
1852
2.6%
4.14%
6.6%
4

Last year’s DNF rates were at the high end for Ironman racing. This year’s return to normal levels and sit among the lowest for the course. As conditions appear to have been normal and the course had been shortened we’d expect to see these low levels for DNF rates.

Median Splits by Age Group at Ironman Louisville 2019
Median Splits by Age Group at Ironman Louisville 2009-2018

Comparing age group medians shows a similar pattern of faster bike and run this year. This is consistent for the majority of age groups.

Ten Largest Nationalities at Ironman Louisville
Country
Count
Percentage
United States
1732
87.3
Canada
93
4.7
Mexico
21
1.1
Colombia
10
0.5
Japan
9
0.5
Brazil
9
0.5
Austria
8
0.4
United Kingdom
8
0.4
Poland
6
0.3
Russian Federation
6
0.3
Ironman Louisville 2019 Predicted Kona Qualifiers by Country
Country
Percentage of Slots
Percentage of Field
United States
62.5
87.3
Canada
7.5
4.7
Ireland
7.5
0.3
Poland
2.5
0.3
United Kingdom
2.5
0.4
Denmark
2.5
0.1
Cayman Islands
2.5
0.1
Belgium
2.5
0.1
Israel
2.5
0.1
Austria
2.5
0.4
Australia
2.5
0.1

The majority of athletes are from North America with a small spread from other countries. Kona slots appear to have mainly remained in the US.

Changes in Male Finishing Times by Position at Ironman Louisville
Changes in Female Finishing Times by Position at Ironman Louisville

There’s been quite a bit of variance in age group times over the history of this race. Recent years have been quicker, but largely because of shortening of the course in the last two years. As we’d expect every position saw times improve this year.

Ironman Louisville 2019 Predicted Kona Qualification Times
Age Group
Slots
Winner
Final Qualifier
10th Place
M18-24
1
08:55:12
08:55:12
10:38:24
M25-29
2
08:00:45
08:09:00
08:35:58
M30-34
3
07:51:46
08:10:06
08:33:39
M35-39
3
07:58:50
08:04:48
08:27:23
M40-44
3
08:08:33
08:17:22
08:34:14
M45-49
4
08:01:01
08:25:41
08:44:10
M50-54
3
08:23:24
08:48:48
09:02:56
M55-59
2
09:05:41
09:05:57
09:52:07
M60-64
1
09:40:12
09:40:12
10:49:53
M65-69
1
10:29:31
10:29:31
12:58:04
M70-74
1
12:17:57
12:17:57
 
M75-79
1
13:23:22
13:23:22
 
F18-24
1
10:02:39
10:02:39
12:33:15
F25-29
1
09:12:54
09:12:54
10:33:20
F30-34
1
08:56:26
08:56:26
09:53:46
F35-39
2
08:57:04
09:13:15
09:59:32
F40-44
2
09:14:58
09:18:04
09:52:37
F45-49
2
08:48:06
09:23:48
10:12:41
F50-54
2
09:20:58
09:54:37
10:33:53
F55-59
1
09:45:51
09:45:51
11:25:00
F60-64
1
10:59:52
10:59:52
13:42:24
F65-69
1
12:05:36
12:05:36
 
F70-74
1
No Finishers
 
 

Based on the start list I’ve calculated the Kona slot allocation and from that the automatic qualifying times in each age group. Roll down is not accounted for in these statistics and at least the F70-74 slot will roll down. The focus of these stats is on the times required to be certain of qualification though. You can compare this with other races on my Kona qualification page.

Top Twenty Male Performances and Kona Qualification by Age Group at Ironman Louisville 2019
Top Twenty Female Performances and Kona Qualification by Age Group at Ironman Louisville 2019

Finally, the age group top twenty times. There’s little comparison to make – this year’s race is much faster thanks to the removal of the swim. This is consistent with only a couple of age groups where 2018 times comes close to the 2019 results.

You can access a spreadsheet of the full results from Ironman Louisville 2019 on my Google Drive.

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