When you look on mlb.com, you have to click on the little green baseball diamond icon next to the game (called 'gameday' icon) and when that opens up it will show you the lineups for the game. You need to scroll all the way down for the umpires. Like I said, these 'gameday' icons don't appear until its within an hour of the game.
As for my record, I really don't know how many of my post have won but I do know that 2 of my umpire postings did lose.
You always remember the losses. One was a Yankee game and the other was Friday in the Cleve/White Sox game. In that game the score was 6-3 in the 5th inning and that's how the game ended. Line was 9 1/2.