UEFL's MLB Umpire Sabermetrics - April 2018

UEFL's MLB Umpire Sabermetrics report for April 2018 features 28 ejections and 253 Replay Reviews through 419 regular season games played.

Though ejections are projected to decrease year-over-year, based on current rates, replays are projected to enjoy a modest increase.*
*The month of April is usually light on ejections. April 2018, for instance, featured seven more ejections than did April 2017.

The attached Most & Least Accurate Umpires, Replay Review contains the top and bottom of the Replay Review table ordinarily found in the "Read More" detailed section of the monthly report.

Related: Visit our Replay Review Statistics and Sabermetrics page for daily-updated umpire stats. This page includes Replay Review Rankings sorted by umpire, by team, and by call type. Daily ejections information is available at our Ejection List.

Summary, Ejections.
>> 28 Total Regular Season Ejections through April 30, 2018 (on pace for 162 ejections this season).
>> Umpires were 46.7% accurate on calls associated with ejection.
>> The New York Yankees led MLB in ejections. The Rockies/Padres/Nats led the National League.
>> Manager Brian Snitker led MLB in ejections.
>> Umpire Brian Gorman led all umpires in ejections.
>> Chief Brian Gorman's crew led all umpire crews in ejections.
>> Most ejections occurred in the 3rd inning; Ejections from 7th and on comprised 29% of all tosses.
>> Most ejections occurred on Wednesday. Weekend series (Fri-Sun) featured 43% of all heave-ho's.
>> The most common reason for ejection was Balls/Strikes, followed by Fighting.
>> All else equal, a team tied at the time of ejection ended up winning the game 69.2% of the time.

Summary, Replay Reviews.
>> 253 Total Replay Reviews, of which calls were affirmed 51.8% of the time (48.2% overturned).
>> The Atlanta Braves used replay more than any other team, but were fairly unsuccessful.
>> The Kansas City Royals were the League's most successful team in review (6-for-6).
>> The BAL Orioles experienced fewer reviews than any other team, and were 26th best in MLB.
>> The Brewers were the worst MLB team in terms of Replay success (0-of-4).
>> Umpire Brian O'Nora had a league-leading 23 calls reviewed, and was above average in outcome.
>> Fieldin Culbreth's crew led all of baseball in replay activity, and performed at league average.
>> Umpires Ted Barrett & Kerwin Danley led in accuracy with all calls affirmed by replay (5/5).
>> Umpires Barksdale & Kellogg experienced the highest rate of calls overturned by replay (0/4).
>> The 8th inning had more reviews than any other inning. 43% of all reviews occurred from 7th-on.
>> Most reviews occurred on Friday; Weekend series (Fri-Sun) featured 49% of all replays.
>> The most common reason for review was Out/Safe (Force - 1st) followed by Out/Safe (Tag - In).

Most & Least Accurate Umpires, Replay Review (sorted by Review Affirmation Percentage [RAP]).
1. Ted Barrett, Kerwin Danley - 100% RAP (5/5).
3. Chad Fairchild, Adrian Johnson - 100% RAP (3/3).
5. Scott Barry, Gary Cederstrom, Bruce Dreckman, Ben May, Mike Muchlinski - 100% RAP (2/2).
10. Barber, Diaz, Estabrook, Hudson, Rackley, Reynolds, Visconti - 100% (1/1).
17. Fieldin Culbreth, Jerry Layne - 80.0% RAP (4/5).
19. Gerry Davis, Stu Scheurwater, Hunter Wendelstedt - 75.0% (3/4).
---
60. Sam Holbrook - 28.6% RAP (2/7).
61. Carapazza, G Gibson, Meals, Miller, Rehak, Wolcott - 25.0% RAP (1/4).
67. Angel Hernandez - 20.0% RAP (1/5).
82. Eddings, Hamari, Knight, Libka, Little, Vanover, Wolf - 0.0% RAP (0/1).
89. Mark Carlson, Phil Cuzzi, Tripp Gibson, Nic Lentz - 0.0% RAP (0/2).
93. Mike DiMuro - 0.0% RAP (0/3).
94. Lance Barksdale, Jeff Kellogg - 0.0% RAP (0/4).

For detailed sabermetric analysis of MLB umpire ejections and instant replay review outcomes, including a Replay Review umpire leaderboard, follow the "read more" link below.
Total Games Played Through April 30, 2017: 419 of 2430 (17.2% of the season has been played).

Umpire Ejection Sabermetrics
Ejections: 28. (Compare to 21 through April 2017). Pace is 162 ejections / 2430 games played.
"Team most active" (Team with most Ejections): NYY 4; COL, SD, WAS 3; ARI, ATL, CHC, MIL 2.
"Team least active" (Team with least Ejections): [Many] 0; BOS, CWS, DET, HOU, LAA, PIT, SF 1.
"Manager ejections leader" (Most Ejections): Brian Snitker 2; [7 Tied] 1.
"Player ejections leader": [14 Tied] 1.
"Umpire leader" (Most Ejections): Brian Gorman 6; Hunter Wendelstedt 5; Foster, Blaser 2.
"Crew most active" (Crew with most Ejections): Gorman 6; Vanover 5; Layne, West 3.
"Most accurate umpire" (Umpire with greatest QOC): [7 Tied] (4 Y / 0 N + 0-to-5 U = 1.000 QOCY).
"Overall QOC percentage" (Overall QOC Y value): .467 (7 Y / 8 N) + 13 Irrecusable = 28 Total.
"Team Status Pre-Ejection" (Winning-Losing-Tied [W-L-T] Record prior to Ejection): 7-8-13.
"Team Status Post-Ejection" (Game Record [W-L]): 16-12. (Delta: 9-4; WPCT: .692).

By Inning: 3 (9); 6 (5); 7 (4); 1, 5, 8 (2); 2, 4, 9, 10 (1).
By Reason: Ball/Strikes (11); Fighting (7); Unsportsmanlike-NEC (3); Throwing At, Replay Review (2).
By Day of Week: Wednesday (9); Sunday (5); Thursday, Saturday (4); Friday (3); Tuesday (2); Monday (1).

Umpire Instant Replay Review Sabermetrics
Replay Reviews & Decisions Rendered: 253, .518 RAP (131/253). On pace for 1467 replays.
"Team Most Used" (Used Replay Review most often): ATL 16; MIN 13; STL, TB, TEX 11.
"Team Least Used" (Least use of Replay): BAL 3; MIL 4; COL, HOU, SD 5; BOS, CWS, KC 6.
"Most successful team in review" (Team with highest TSP): KC Royals - 1.000 (6/6).
"Least successful team in review" (Team with lowest TSP): MIL Brewers - .000 (0/4).
"Umpire most questioned" (Most Reviews): Brian O'Nora 7; Danley, Guccione, Holbrook, Morales, Nauert 6.
"Crew most questioned" (Most Reviewed Crew): Fieldin Culbreth 20; Meals 18; Danley 17.
"Most accurate umpire" (Umpire with greatest RAP): Ted Barrett, Danley - 1.000 (5 Y in 5 Total).
"Ump of greatest overturn" (Umpire with lowest RAP): Barksdale, Kellogg - .000 (0 Y in 4 Total).

Actual data (Raw Data for Replay Reviews):
- By Inning: 8 (39); 5 (35); 6 (33); 9 (28); 3 (26); 7 (22); 4 (20); Extras (19); 1 (17); 2 (14).
- By Reason: Out/Safe [Force - 1st] 60; Out/Safe [Tag - Into Base] 30; Out/Safe [Tag - Stolen Base] 28; Out/Safe [Pickoff], Out/Safe [Pulled Foot] 22; Catch/No Catch, HR/In Play (13); HBP/Ball 10.
- By Day of Week: Fri (51); Sat (40); Sun, Wed (34); Mon (33); Thurs (32); Tues (29).

Umpire Replay Review Leaderboard, as of April 30 (visit the Replay Stats page for an updated table)
Umpire Accuracy in Replay Reviews (Ranked by Review Affirmation Percentage [RAP])