Changes

Looking at the [http://www.etinternet.net/%7Erunrbike/WeymouthWoodsLapSplits100K.htm split times][http://www.etinternet.net/~runrbike/WeymouthWoodsLapSplits100K.htm, ,] it is immediately obvious that people slow up in the race. But does everyone? And by how much? I pulled the split times (via some custom code) into Excel and did some graphing to find out...

== Absolute Times ==

This graph shows the time taken for each lap (in seconds), with each line as a different runner. You can see that the time difference between the fastest and slowest runners grows as the race progresses. Initially there is about 2,000 seconds between the fastest and slowest, but at the end, the gap grows to 5,000.

== Relative Times ==

For this graph, I worked out each runners average lap time, then divided each lap by the average. This graph then shows how much faster or slower a runner completes each lap compared with their average. A runner who runs even splits would be a flat line, a runner how slows up will be an upward facing line, and if any runner had done negative splits (got faster), the line would slope downward.

Looking at the WW100K, the variation in finish time does not dramatically go up with the finishing place.

(Plot of standard deviation against finishing place.)

Note - the spreadsheet is available on request - just email spreadsheet@fellrnr.info and I'll send it to you.