The course was remeasured with a tape measure in 2017 and it was discovered that the yearly wheel-measurings had been inaccurate.  The traditional loops turned out to be long by almost 50 meters (145 feet).  This means that times were off too, by 9-11 seconds for the top boys and by 11-14 seconds for the top girls.

For the sake of future comparisons, the times above, and all the times on the all-times KWGC lists, have been converted to what they would have been over a true 5000m, though the actual results pages prior to 2017 will remain as recorded on race day.

The yellow line is the new adjusted route.  The purple dotted line shows where the old route ran.