Overestimated my fitness

Did the adventure race on Saturday in the Avoca Beach/Terrigal/Central Coast area. 4.6km on the kayak, 8.5km on foot and 17.6 on the bike. Totally underestimated my fitness. Walked most of the running legs. Bloody Kincumber Mountain - Pushing bike up the narrow steep & rocky track up to the Wariwari look out - painful and disheartening. Compunded unhappiness because the mozzies hovered, ready to devour you if you paused for a rest. Hot. Got dehydrated. Still sore. Did I have fun? Ummmm….