
1) Arbiters 2) Referees 3) Refs
Found on
https://www.crosswordclues.com/clue/umpires

1) Baseball officials 2) Call makers 3) Calls the game 4) Cricket officials 5) Diamond experts 6) Does a baseball job 7) Experts on diamonds 8) Home rulers 9) Makes calls from home 10) Refs 11) Scapegoats at the ball game 12) Strike callers 13) Team officials 14) They make a lot of calls 15) They make calls from home
Found on
https://www.crosswordclues.com/clue/umpires

Two mounted umpires (one for each side of the field) who regulate the game. They usually wear striped shirts.
Found on
http://www.encyclo.co.uk/local/20526
No exact match found.