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Professional Race Information System
Introduction and Explanation

The system may also be accessed from a link on www.lamarathon.com/event/media/
It provides the progress of the leading male and female runners at every mile, the half marathon and the finish.

Note the official distance of a marathon is 42.195 kilometers. This converts to 26 miles 385 yards.

The system consists of 5 web pages that display:

1. Womens Mile Intervals (splits) 2. Men’s Mile Intervals (splits) 3. Women’s 5 Kilometer Intervals (splits) 4. Men’s 5 Kilometer Intervals (splits)

5. The Challenge: This is a 'men vs women' race. Based on the capabilities of the leading runners, the women start with a time advantage.
    The start advantage is calculated to result in a tie provided both the leading man and woman perform as their capabilities indicate.