2021 Rotations and Responsibilities, 4-Umpire System, 60-Foot Diamond, Baseball & Softball
3UP 3DOWN - 6/4/2021 - Basic Rotations in the 4-Umpire System (60 Foot)
3UP 3DOWN- 6/11/2021 - Basic Responsibilities in the 4-Umpire System (60 Foot)
3UP 3DOWN - 6/18/2021- Chasing Fly-Balls in the 4-Umpire System
3UP 3DOWN - 6/25/2021 - Working as a Wing Umpire (U1 and U3) in the 4-Umpire System (60 Foot)
3UP 3DOWN - 7/2/2021 - Working as U2 in the 4-Umpire System (60 Foot)
From Jeff Freese:
LittleLeague.org: Umpire Training Series | Session 3: Two-Umpire Field Mechanics
2013 Little League Field Mechanics Manual for the 60 Foot Diamond
Includes systems for Two, Three and Four umpires
Diagrams for the Three Umpire Mechanics 60-Foot Diamond
2013 Little League Field Mechanics Manual for the 90 Foot Diamond
Includes systems for Two, Three and Four umpires