In every race there is the inevitable last few people who are not going to make the cut-off or the finish line in the time alloted. In the case of the Mother Road it is 30 hours. The Piraña Brothers established a cut-off time at the half way point of 14 hours. Based on the median runner using 40% of their time in the first half and 60% in the second, that was generous. So, based on 16 hours to finish the second 50 miles, that leads to other potential areas:
bridgeport by 4:30 am
tatur turn by 6:15 am
geary by 8:10 am
calumet by 11:45
Mav is well ahead of these cutoffs and on pace for about 24 hours, but of (a dozen or so) are struggling to get to each aid station before the cut.