I've done 2 in the past, last one was last June, 3h11 at 2:16 avg pace (incl ~2min for a necessary visit to the restroom).
Today, I tried an HM at a constant 2:07.3 pace (here), just to see if a 3h marathon is in the ballpark.
Code: Select all
Time Meters Pace Watts Cal/Hr S/M HR
1:29:34 21,097m 2:07.3 169 882 24 153
8:29.7 2,000m 2:07.4 169 882 24 145
8:29.5 4,000m 2:07.3 169 882 24 150
8:29.5 6,000m 2:07.3 169 882 24 151
8:29.5 8,000m 2:07.3 169 882 24 155
8:29.5 10,000m 2:07.3 169 882 24 153
8:29.5 12,000m 2:07.3 169 882 25 155
8:29.4 14,000m 2:07.3 169 883 25 154
8:29.4 16,000m 2:07.3 169 883 25 155
8:29.5 18,000m 2:07.3 169 882 25 157
8:29.3 20,000m 2:07.3 170 883 24 156
4:39.4 21,097m 2:07.3 169 883 24 159
Question: do you think a full marathon (this friday) @ 2:08 trying to squeeze under 3h is somehow possible? Yes ? Maybe ? No way, forget it ?
In case it helps, my HM PB is 1:27:19 at 2:04.2 pace.