Bet Better BET BETTER PRO
Log in
MLB · 11,463 games logged

MLB Umpires: what really happens in their games

Download CSV (CC BY) — the whole table as a spreadsheet, free to use with credit.

Across 11,463 logged MLB games, the biggest scoring gap between umpires is real: games with Pat Hoberg average 10.9 runs, games with Brian Knight just 7.5 — against a league average of 9.1. Every umpire below links to their full record.

Tonight’s plate umpires

  • Louie Krupa — San Francisco Giants @ Los Angeles Dodgers (his games average 10.5 runs)
  • Roberto Ortiz — Milwaukee Brewers @ Baltimore Orioles (his games average 8.5 runs)
  • Austin Jones — Minnesota Twins @ Los Angeles Angels (his games average 8.8 runs)
  • Jansen Visconti — New York Yankees @ Arizona Diamondbacks (his games average 9.3 runs)
  • Tom Hanahan — Toronto Blue Jays @ Texas Rangers (his games average 9.2 runs)
  • Dan Merzel — Washington Nationals @ St. Louis Cardinals (his games average 8.9 runs)
  • Brock Ballou — Boston Red Sox @ Tampa Bay Rays (his games average 9.5 runs)
  • Lance Barrett — Atlanta Braves @ Houston Astros (his games average 9.2 runs)
  • Junior Valentine — Athletics @ Cleveland Guardians (his games average 8.7 runs)
  • Mike Estabrook — Seattle Mariners @ Colorado Rockies (his games average 8.6 runs)
  • Marvin Hudson — Miami Marlins @ San Diego Padres (his games average 8.8 runs)
  • Bill Miller — Kansas City Royals @ Pittsburgh Pirates (his games average 8.8 runs)
  • Sean Barber — Chicago Cubs @ Cincinnati Reds (his games average 9.1 runs)
  • Carlos Torres — Detroit Tigers @ Chicago White Sox (his games average 8.9 runs)
  • Paul Clemons — Philadelphia Phillies @ New York Mets (his games average 8.4 runs)
UmpireGamesAvg runsLeagueHome winsCall accuracy
Lance Barrett1449.29.144%93.3%
Vic Carapazza1449.29.147%94.1%
Doug Eddings1438.79.158%93.2%
Ryan Wills1429.19.149%94.1%
Alfonso Márquez14110.29.150%93.2%
Bill Miller1418.89.151%93.7%
Clint Vondrak1419.79.149%93.9%
Edwin Moscoso1418.99.157%94.9%
Adam Beck1408.99.153%94.4%
Adam Hamari1399.19.165%94.6%
Emil Jimenez1399.29.155%93.8%
Mike Muchlinski1399.99.157%93.7%
Nate Tomlinson1399.89.149%94.6%
Nestor Ceja1398.69.156%94.5%
Nic Lentz1398.99.151%94.3%
Alan Porter1389.29.151%94.9%
Alex Tosi1389.09.147%95.0%
John Libka1389.09.144%94.9%
Lance Barksdale1388.79.155%94.2%
Charlie Ramos1379.29.151%93.6%
Dan Iassogna1379.39.150%93.3%
Malachi Moore1379.89.153%93.0%
Mark Ripperger1379.29.151%94.7%
Mike Estabrook1378.69.159%93.5%
Dan Merzel1358.99.154%94.3%
Jansen Visconti1359.39.149%94.8%
Carlos Torres1348.99.158%93.7%
Dan Bellino1349.79.153%94.2%
Gabe Morales1348.49.151%94.1%
Brennan Miller1338.69.150%93.6%
David Rackley1338.89.161%94.0%
James Hoye1339.19.151%93.8%
Sean Barber1339.19.153%93.8%
Ben May1329.89.154%94.5%
Chris Segal1329.09.159%93.6%
D.J. Reyburn1328.89.162%93.7%
Erich Bacchus1329.39.153%94.0%
Roberto Ortiz1328.59.153%93.3%
Ramon De Jesus1319.29.146%93.8%
Manny Gonzalez1309.09.160%93.7%
Nick Mahrley1308.99.148%93.8%
Stu Scheurwater1309.09.152%93.6%
Todd Tichenor1308.59.152%94.1%
Brian Walsh1299.79.154%93.5%
Quinn Wolcott1299.09.152%94.8%
Ryan Blakney1298.59.159%94.0%
Andy Fletcher12810.69.159%92.8%
Jim Wolf1289.39.162%93.8%
Ryan Additon1289.39.148%93.8%
Adrian Johnson12710.09.150%93.1%
Marvin Hudson1278.89.153%93.5%
Chad Fairchild1269.49.140%93.6%
Chris Guccione1269.79.158%93.9%
Jordan Baker1269.69.148%94.1%
Tripp Gibson1269.59.155%94.6%
Will Little1269.09.150%94.7%
Jeremie Rehak1259.09.160%94.9%
John Tumpane1259.09.148%94.2%
Laz Diaz1258.79.163%92.6%
Mark Wegner1249.99.149%94.3%
Tom Hanahan1249.29.149%94.0%
Alex MacKay1228.89.154%94.5%
Cory Blaser1228.59.156%93.8%
Brian O'Nora1218.89.154%92.9%
Junior Valentine1218.79.150%94.5%
Derek Thomas1199.89.148%95.3%
Bruce Dreckman1189.19.148%93.0%
Paul Clemons1168.49.154%94.0%
Chad Whitson1079.49.161%93.9%
Edwin Jimenez1078.89.146%94.8%
Rob Drake1068.89.155%92.5%
Shane Livensparger1069.19.155%94.4%
CB Bucknor1058.29.158%92.4%
John Bacon1048.29.158%93.4%
Hunter Wendelstedt1038.79.150%92.8%
Phil Cuzzi1018.09.161%93.9%
Scott Barry1019.09.154%93.5%
Brock Ballou949.59.150%94.2%
Chris Conroy898.89.156%93.9%
Jacob Metz898.79.146%94.0%
Tony Randazzo868.59.149%93.9%
Austin Jones828.89.135%94.8%
Ron Kulpa828.79.148%92.7%
James Jean7910.29.157%93.9%
Mark Carlson719.19.159%93.5%
Jonathan Parra638.79.146%93.6%
Willie Traynor6110.49.146%94.1%
Jeremy Riggs578.79.151%94.6%
Brian Knight517.59.139%94.2%
Tyler Jones499.39.153%94.2%
Steven Jaschinski469.89.152%94.5%
Larry Vanover449.29.145%92.6%
Dexter Kelley4310.19.153%94.4%
Jen Pawol3910.39.159%92.2%
David Arrieta347.89.144%93.4%
Jeff Nelson3410.29.156%93.5%
Pat Hoberg3210.99.141%95.4%
Louie Krupa2810.59.146%94.5%
Angel Hernandez small sample249.79.150%92.9%
Jerry Layne small sample199.49.158%92.6%
Darius Ghani small sample179.19.176%—
Dillon Wilson small sample1710.09.141%—
Felix Neon small sample177.89.141%—
Macon Hammond small sample147.49.150%—
Matt Brown small sample1311.99.185%—
Paul Emmel small sample1210.19.167%93.4%
Chris Marco small sample119.99.136%—
Jose Navas small sample1010.29.130%93.5%
Mitch Trzeciak small sample1010.59.140%—
Bryan Van Vranken small sample914.39.156%—
Mark Stewart Jr. small sample98.79.167%—
Pete Talkington small sample912.99.144%—
Reed Basner small sample99.49.156%—
Sean Sparling small sample98.89.144%—
Steven Hodgins small sample911.29.133%—
Austin Snow small sample810.39.188%—
Charlie Welling small sample810.09.150%—
Matt Blackborow small sample89.49.175%—
Thomas Fornarola small sample813.99.125%—
Trevor Dannegger small sample812.99.175%—
Lew Williams small sample710.69.143%—
Randy Rosenberg small sample78.39.143%—
Robert Nunez small sample78.49.157%—
Evin Johnson small sample68.79.167%—
Denver Dangerfield small sample512.29.160%—

"Small sample" means we don't have enough of that umpire's games yet to publish a full page — the row still shows what we do have. Averages update as new games are logged. Last build: 2026-09-19 02:39 UTC.

See how these numbers meet tonight's prices: our free MLB pick · live MLB odds board.

Other leagues: NBA referees ·  WNBA referees ·  NHL referees ·  AFL umpires ·  Premier League referees ·  NFL referees ·  Serie A referees ·  La Liga referees ·  Bundesliga referees ·  Ligue 1 referees ·  MLS referees ·  today's best bets

Common questions

Do MLB umpires really affect the score?

The numbers on this page are real averages from logged games, shown next to the league average so you can see the gap. Some of the gap is the umpire, some is the games they happen to get. Treat it as one more thing to check — not a system on its own.

Where does this data come from?

Official game records: final scores, pitch-by-pitch accuracy tracking for every logged game each umpire worked. We only publish a full page for umpires with enough games to be meaningful.

How do bettors use umpire stats?

Mostly for totals. If a umpire's games run clearly above or below the league average, that's worth knowing before you take an over or under. Check the number, then check the price.

Get tomorrow's free pick by email

Free. One email a day, tops. Unsubscribe in one tap.

18+ only. Please gamble responsibly.