Autumn Leaves Data
Based on the spreadsheet I received, there were 29 finishers in the 50-mile race last Saturday. My time of 9:43:12 placed me 13th. My splits are as follows (first lap was 6.2 miles, subsequent laps were said to be 4.92 miles with an additional tenth or two early on because most if not all of us took a wrong turn):

Lap 1 1:09
Lap 2 0:55
Lap 3 0:51
Lap 4 0:53
Lap 5 0:55
Lap 6 0:55
Lap 7 0:57
Lap 8 0:58
Lap 9 1:04
Lap 10 1:06:12
Total 9:43:12

Looking at this, I have to think that with some consistent long running in the months preceding next year's Autumn Leaves, I could whittle this down to 9 hours. (Look at that, already with a goal beyond finishing!)