Ran into a friend of my son's (19 year old) umping at a local field this summer. He is certified...and doing 12U-14U mostly. He has gotten hooked up with a tourney/league director and basically makes his own schedule.....doing as many or as few games as he wants this summer. Said he's making more money umping than if he'd have taken a 40-hour/week job. I watched a game and a half and he did a really, really good job.