Umpire Positioning

[Guest Palladium]

Baserunners on 1B and 3B with 1 out.  Ball is hit to right field. Does the home plate umpire line up on the 1B extended or 3B extended?  This is with a 3 man crew.

[Richvee]

Neither. PU moves to a position to view R3's tag up at 3B, and then he gets into position for any play at the plate. U3 would have catch/no catch on a routine fly, U1 does if he goes out on a trouble ball. 

My question, as I'm no expert on 3 man...If U1 goes out, it reverts to 2 man...Does that mean if U1 goes out, ball is fair, no catch, does PU now have R1 into 3B?  

[Stk004]

16 hours ago, Richvee said:

Neither. PU moves to a position to view R3's tag up at 3B, and then he gets into position for any play at the plate. U3 would have catch/no catch on a routine fly, U1 does if he goes out on a trouble ball. 

My question, as I'm no expert on 3 man...If U1 goes out, it reverts to 2 man...Does that mean if U1 goes out, ball is fair, no catch, does PU now have R1 into 3B?  

If U1 is going out and it's a fly ball (not a line drive requiring a F/F decision), I'm assuming runners are looking to tag. If the fielder botches it or misses a diving catch I'd stay home and let U3 take the bases. 

Also it's standard for PU to stay home with R1 and R3 (aka no first to third rotation in this situation) so this shouldn't change based on U1 going out.