Paris Marathon! Route all over the place in miles 2, 3 and 4 due to the crowds and tall buildings spoiling the view of the sky most likely. This is where most of the diff comes from. Interestingly splits suggest that about mile 22 was the worst and picked up from there - after that managed to go with fairly consistent slow jog and ran the whole way from 41k to the end
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Summary
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Distance: 26.77m
Time taken: 04:34:19
Average/Max Speed : 5.85mph / 13.51mph
Average/Min Pace : 00:10:14 / 00:04:26
Calories used: 3355
9.13,9.13,9.03,10.51,9.41,9.25,11.41,9.10,9.18,9.55,9.29,9.12,9.38,9.59,9.23,10.22,9.31,10.09,9.31,11.14,10.00,10.26,13.32,11.45,12.20,11.47,8.18