5000m world record = 2 minutes 31 seconds per 1km pace
10,000m world record = 2 minutes 37 seconds per km pace
Half marathon world record = 2 minutes 44 seconds per 1km pace
Marathon world record = 2 minutes 51 seconds per 1 km pace
When Kiptum set the marathon world record, he never exceeded 3 minutes per kilometer throughout the entire course.