How long was the swim?

The recurring post-triathlon question:
How Long was the swim…
the Oliver Half 2012 edition

Photo from gallery: Oliver Half Iron 2012

We have to presume that the swim course is on-average the length that is advertised (2km). We also presume that the distribution of swimmers is equivalent from year to year. There is a confounding factor in that the prize money for this race has changed from year to year which may affect the depth of the elite field. Without professional triathletes being designated as such in the results it is impossible to correct for this factor. With this year’s result we can change our assumption from last year as we are adding data to the all-time list, where calculations showed that the 2011 swim was likely 2085 meters in length. This adjusts last year’s likely distance to 2052 meters in length. It shows a likely distance for the 2012 race of 2150 meters, impacting the swim time of the average competitor by 3 minutes and 12 seconds. Pro-rating my swim performance chops off 2 min 53 sec and has me swimming a 38:30 which is lousy but not embarrassingly so, considering swim training consisting of one 750 swim during a sprint-tri and one 15 minute training-swim the day before race day and nothing else during the prior 100 days.

Photo from gallery: Oliver Half Iron 2012
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