Posted by: Ian | June 25, 2012

Dartford Bridge Tri results digest

Now that the Dartford Bridge Tri results are out, it’s interesting to look at the demographics of the finishers. There were only 152 people who completed the Olympic distance, with just over 80% of these being men and the splits between gender (rows) and age group (columns) as follows:

As you can see, the biggest grouping, comprising 30% of the whole (46 individuals), were men in their 30’s.

Here’s how each gender/age group did (females in red on the left, males in blue on the right):

I’m guessing that the 80+ category included some “not recorded” ages as well as genuine octogenarians.

The overall distribution of times for each of the three disciplines was as follows:

Thus most of the cycle rides were clustered between 60 and 100 minutes, most of the runs were between 40 and 65 minutes and most of the swim times were between 20 and 40 minutes.

The mean times for each leg were 30:18 for the swim, 1:13:09 for the cycle and 46:40 for the run (and the medians were 30:15, 1:12:41 and 45:28, respectively). The standard deviations for the legs were just over 4 mins for the swim, 8:14 for the cycle and 7 mins for the run. This means that, as usual, being a strong swimmer confers little advantage. If you want to see how the organisers could re-balance the legs in future years to make the event fairer, you can use the formula that I gave before.

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