North-West England races under investigation for being ‘too short’

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After three years of Greater Manchester Marathon results were declared invalid due to the course being found to be 380m too short, 38 races in North-West England are now being investigated by the Association of UK Course Measurers.

Among the races, five have already been re-measured and found to come up short, including the Greater Manchester Marathon. The other races are the Buxton Half Marathon, Buxworth 5 (five miles), Trafford 10K and Christleton 5K. The exact shortfall ranges from 0.2% short for the Christleton 5K to 1% for the Trafford 10K.

The Greater Manchester Marathon was 0.9% short, making its overall distance 25 miles and 1730 yards instead of the full marathon distance of 26 miles and 385 yards. This discrepancy occurred in the 2013-2015 races, but was corrected for this year's event.

Race courses are measured using a bicycle fitted with a counter to calculate the distance travelled. According to the Association of UK Course Measurers, an accredited measurer had calculated the distance for each of these races, but there was an issue with the calibration of the bicycle wheel and the counter.

A full list of events under investigation can be found here.