Spartan Race and TM are fun and not that hard. But most BB would get humbled in about 1/2 mile when they pulled something, failed to lift their asses over a wall, or something. Easy to make fun of something one knows ZERO about or willing to try.
I moved on from them and been doing some harder events. Grape knows about it.
But they are great test of ones abilities. Most people who just do a typical BB workout get massacred in these cause they have no endurance or actual functional strength or stamina.