I did my first training hike yesterday (the 11.6mi tram to SJ Peak), it was totally fun, I still had plenty of energy left. I ran about the last 1/2 mile and could have kept going. My average pace was 24:17 min/mi (speed 2.47 mi/hour).
FYI, I was in a group of 17 people who also did that route on Saturday. Most of us went up on the first tram. We split up into two groups once we reached the ranger station. The faster group took just over 3 hours to reach the summit and just over two hours to get back. After an hour on the summit, we ran into the slower group about 15 minutes down (below the final fork).