Kilian Jornet, "the world's greatest trail/mountain" runner got demolished by a lower-class African in Petro Mamo in Limone... he even mercied Kilian to give an excuse on why he lost!!! Classic,http://skyrunning.com/index.php?option=com_content&view=article&id=332:skyrunnerr-world-series-kilian-takes-three-world-titles-at-limone&catid=37:article-slider-content&Itemid=134
Imagine Kimetto in the mountains for 160km!! I think he would be 30-min + ahead of the likes of Jornet and Mamo.