Triathlon Lab

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Athletes

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Rankings

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Race rankings

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Power rankings

Long-Course Power Index70.3 + T100 Full-Distance SpecialistsFull IM first Middle-Distance Specialists70.3/T100 first Short-Course SpecialistsWTCS required

Start List Explorer

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ToolsWIP

Research tools

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A compact set of working tools for planning, searching results, and choosing races.

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Planning

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Reference

World Triathlon ReferenceOfficial context ChangelogUpdates

Pro Age Group

Building race view...

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Master athlete

Stefan Duijvestijn

Unified profile powered by master athlete and result tables.

maleCWAge GroupViewing AG

IDs>

WTC ID46bc47d0-b37f-f011-b4cb-7ced8d6de44a

Pro results

AG results

Races

Best finish

#349

Race history

1 results

2026 IRONMAN 70.3 Panama

Mar 23, 2026halfM30-34

#349

Place

Finish

5:16:08

Swim

0:25:38

Bike

2:46:22

Run

1:56:05

		Race							Finish
349	264	IRONMAN 70.3 Panama 2026Age Group70.3	Mar 23, 2026	0:25:38 1:21/100m	0:04:39	2:46:22 20.2 mph	0:03:25	1:56:05 8:51/mi	5:16:08