Sort the data according to times for the swimming leg, cycling leg, and running leg.
How well do each of the individual event times correlate with the overall times?
Here are some ideas to consider when trying to explain what you notice:
How long do athletes spend on each leg of the Triathlon?
How might the order of the events in the Triathlon affect the final times?
What are the advantages of staying with other athletes over breaking away early?
How do the energy requirements differ for each leg of the Triathlon?