3-umpire mechanics
The objectives of 3-umpire mechanics
• Try to keep one umpire AHEAD of the lead runner
• If possible, “box” the runner between the three umpires
DA
C B
Field UmpirePositions
AD
C B
Umpire PositionsNO Runners
Umpire PositionsRunner on
1st
Umpire PositionsRunner on
1st & 2nd
Umpire PositionsRunner on
1st & 3rd
Umpire PositionsRunner on 1st, 2nd & 3rd
Anytime there is a
RUNNER on 1st
U3 will be in “C”
Umpire PositionsRunner on
2nd
Umpire PositionsRunner on
2nd & 3rd
Anytime there is a
RUNNER on 2nd, butNO RUNNER on 1st
U2 will be in “B”
Umpire PositionsRunner on
3rd
Anytime there is a RUNNER on 2nd, butNO RUNNER on 1st
U1 will be in “B”
OTHERWISE
U1 will always be in “A”
Anytime there is a RUNNER on 1st
U3 will be in “C”
OTHERWISE
U3 will always be in “D”
Quick Guide for knowing when to be
“inside” versus “outside”
CHECK SWINGS
• Go to the “Open” umpire
– U1 for RIGHT handed batters
– U3 for LEFT handed batters
Fly Ball CoverageU2 & U3
On the corners
Fly Ball CoverageU3 IN
Fly Ball CoverageU1 IN
INFIELDCatch / No Catch
U2 & U3On the corners
INFIELDCatch / No Catch
U3 In
INFIELDCatch / No Catch
U1 In
Fair / FoulU2 & U3
On the corners
Fair / FoulU3 In
Fair / FoulU2 In
U3 is the “KEY”for rotation when U2 and U3 are on
the corners
Think of it like all umpires are connected
by a “string”
If you GO OUT
You STAY OUT
If U1 or U3 “goes out”
Coverage in infield reverts to
2-Umpire Mechanics
Rotations in 3-Umpire Mechanics
• Rotations are generally to your LEFT as you face the mound
• EXCEPTION:– The “Slide” Rotation
The SLIDE RotationRunners in scoring position and U1 is
staying home
NO RUNNERSON BASE
NO RUNNERSU1 Goes Out
NO RUNNERSU3 Goes Out
NO RUNNERSBase Hit
NO RUNNERSInfield Hit
Runner on 1st
Runner on 1st
Fly BallU1’s Responsibility
Runner on 1st
Fly BallU3’s Responsibility
Runner on 1st
Fly BallPL’s Responsibility
Runner on 1st
Base Hit
Runner on 1st
Infield HitPossible
double play
Runner on 1st
Pickoff at First
Runner on 1st
Steal of 2nd
Runner on 2nd
Runner on 2nd Fly Ball
U1’s Responsibility
Runner on 2nd Fly Ball
U3’s Responsibility
Runner on 2nd Fly Ball
PL’s Responsibility
Runner on 2nd Base Hit
Runner on 2nd Infield Hit
Runner on 2nd Pickoff at Second
Runner on 3rd
Runner on 3rd Fly Ball
U1’s Responsibility
This is the MOST OFTEN
MISSED ROTATION in 3-umpire mechanics
Runner on 3rd Fly Ball
U3’s Responsibility
Runner on 3rd Base Hit
Runner on 3rd Hit to Infield
Runner on 3rd Pickoff at Third
Runners on 1st & 2nd
Runners on 1st & 2nd
Fly Ball U1’s Responsibility
Runners on 1st & 2nd
Fly BallU3’s Responsibility
Runners on 1st & 2nd
Fly BallPL’s Responsibility
Runners on1st & 2ndBase hit
Runner on 1st & 2nd
Hit to Infield
Runners on1st and 3rd
Runners on1st and 3rd
Fly BallU1’s Responsibility
Runners on1st and 3rd
Fly BallU3’s Responsibility
Runners on1st and 3rd
Fly BallPL’s Responsibility
Runners on 1st and 3rd
Base Hit
Runners on 1st and 3rd Infield Hit
Runners on 1st and 3rd
Steal & Rundown
Runners on 2nd & 3rd
Runners on 2nd & 3rd Fly ball
U1’s Responsibility
Runners on 2nd & 3rd Fly ball
U3’s Responsibility
Runners on 2nd & 3rd Fly ball
PL’s Responsibility
Runners on 2nd & 3rd Base Hit
Runners on 2nd & 3rd Infield Hit
Bases Loaded
Bases LoadedFly Ball
U1’s Responsibility
Bases LoadedFly Ball
U3’s Responsibility
Bases LoadedFly Ball
PL’s Responsibility
Bases LoadedBase Hit
Bases LoadedInfield Hit
Possible Double Play
No Matter What Happens…..or
Who misses a rotation
FILL THE HOLE !!!
We can talk about missed
coverage later……….but
SOMEONE has to be there to
MAKE THE CALL
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