Coolsaet just fell short of the record:
Splits for Coolsaet:
5km - 15:08
10km - 30:12
15km - 45:16
20km - 50:46
21.1km - 64:11
30km - 1:31:34
35km - 1:47:25
40km - 2:03:59
Finish - 2:11:24

Source: ranranponpon