Wrestling and soccer.
Soccer is a great endurance sport. 45 minutes of sprint jog jog sprint jog sprint sprint...and having to do more then just stick one foot in front of the other. Then a 10 minute break and back at it for 45 minutes.

Wrestling I did, and found it much harder then it looked. 2 minute rounds, and for the nearly the entire two minutes you push your muscles to the limits. All of them. 3 rounds in a match, unless someone got pinned. And let me tell you, thats tireing.
And you tend to have 4-5 matches on a given Saturday meet.
That and running from ye olde rent-a-cop, but thats a diffrent story.
