MLB Baseball Officials Directory

Explore MLB Baseball officials with recorded officiating history. Each profile identifies the seasons covered by RefMetrics; coverage does not necessarily represent a complete career.

MLB Baseball statistics and assignments · How to interpret the data

OfficialSeasons coveredRecorded roles
Mike Muchlinski2015–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Mike Winters2015–2019First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
NO UMPIRE2019–2026Second Base Umpire
Nate Tomlinson2020–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Nestor Ceja2020–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Nic Lentz2016–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Nick Mahrley2017–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Pat Hoberg2015–2023First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Paul Clemons2020–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Paul Emmel2015–2023First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Paul Nauert2015–2020First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Paul Schrieber2015–2015First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Phil Cuzzi2015–2025First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Quinn Wolcott2015–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Ramon De Jesus2016–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Randy Rosenberg2020–2023First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Rob Drake2015–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Roberto Ortiz2016–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Ron Kulpa2015–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Ryan Additon2017–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Ryan Blakney2015–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Ryan Wills2020–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Sam Holbrook2015–2021First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Scott Barry2015–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Sean Barber2015–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Shane Livensparger2017–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Steven Jaschinski2025–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Stu Scheurwater2015–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Ted Barrett2015–2022First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Tim Timmons2015–2021First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Tim Welke2015–2015First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Toby Basner2015–2017First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Todd Tichenor2015–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Tom Hallion2015–2022First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Tom Hanahan2023–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Tom Woodring2015–2020First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Tony Randazzo2015–2025First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Tripp Gibson2015–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Tyler Jones2025–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Vic Carapazza2015–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Will Little2015–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire
Willie Traynor2025–2026First Base Umpire, Home Plate Umpire, Second Base Umpire, Third Base Umpire