MLB Instant Replay Review Stats: Week 3 Sabermetrics

Instant Replay Review Statistics and Sabermetrics are now available for MLB Week 3. As the numbers and trends begin to form, Close Call Sports and the Umpire Ejection Fantasy League continues with the strategic statistics reporting, or what may be the first measure of umpire-centric sabermetrics in professional baseball. Visit Instant Replay Review Statistics 101: Week 1 Sabermetrics for an introduction to Replay Review definitions and terms, including Review Affirmation Percentage (RAP), also known as QOC (Quality of Correctness), Replay Percentage of Success (RPS), alternatively, 1.000 - RAP = RPS, and Manager's Challenge Success Percentage (CSP).

With Week 3 of the MLB Regular Season in the books, the UEFL recaps professional baseball's "this time it counts" living experiment with Instant Replay Reviews. Bearing in mind that with n=128, our sample size is still small and unreliable, here, combined with earlier weeks, are the "early returns" numbers:

Key bullet points:
"Team Most Used" (Made use of Replay Review most often): Oakland Athletics - 10.
"Manager's Challenge Leaders" (Most challenges filed): R Renteria - 8.
"Most successful Manager" (Manager with highest CSP): F Gonzalez - 1.000 in 2/2.
"Least successful Manager" (Manager with lowest CSP): J Farrell & M Matheny - .000 in 0/3.
"Umpire most questioned" (Ump with most Replay Reviews): Quinn Wolcott - 6 (.667 RAP).
"Most accurate umpire" (Umpire with greatest RAP): Jim Reynolds - 1.000 in 4/4.
"Umpire of greatest overturn" (Umpire with lowest RAP): Gerry Davis, Mike DiMuro - .000 in 0/3.
"Overall affirmation or QOC percentage" (Overall RAP): .586 (75/128 Affirmed Replay Reviews).
Team Status Pre-Review (Winning or Losing prior to review [Win-Loss-Tied]): 49-40-39.
Team Status Post-Review (Game Record [W-L]): 65-63. (Delta: 16-23; WPCT: .410).

Actual data:
Games Played: 277 of 2430.
Replay Reviews & Decisions Rendered: 128 (on pace for 1,122 [+19 from last wk] Replay Reviews)
- Crew Chief Reviews (Replay Reviews initiated by the Umpire Chief): 28 (22%), .821 RAP.
- Manager's Challenges (Replay Reviews initiated by the Club Manager): 100 (78%), .520 RAP.

Teams Most Used - Quantity of Replay Reviews (both Crew Chief & Manager's Challenge)
1. Oakland Athletics: 10 (6 Crew Chief Reviews [.833 RAP], 4 Challenges [1.000 RAP]).
2. Chicago Cubs: 9 (1 Crew Chief Review [1.000 RAP], 8 Challenges [.500 RAP]).
3. New York Yankees: 7 (2 Crew Chief Reviews [1.000 RAP], 5 Challenges [.200 RAP]).
3. Miami Marlins: 7 (4 Crew Chief Reviews [.750 RAP], 3 Challenges [.333 RAP]).
3. Tampa Bay Rays: 7 (7 Challenges [.571 RAP]).

Most Successful Managers - Managers with Highest CSP
1. Fredi Gonzalez (Atlanta Braves): 1.000 CSP (2/2 Challenges Overturned).
2. Buck Showalter (Baltimore Orioles): 1.000 CSP (1/1 Challenge Overturned).
2. Ron Gardenhire (Minnesota Twins): 1.000 CSP (1/1 Challenge Overturned).
2. Bud Black (San Diego Padres): 1.000 CSP (1/1 Challenge Overturned).
5. Joe Girardi (New York Yankees): .800 CSP (4/5 Challenges Overturned).

Least Successful Managers - Managers with Lowest CSP
1. John Gibbons (Toronto Blue Jays): .000 CSP (0/4 Challenges Overturned).
1. Bob Melvin (Oakland Athletics): .000 CSP (0/4 Challenges Overturned).
3. Matt Williams (Washington Nationals): .000 CSP (0/3 Challenges Overturned).
3. Robin Ventura (Chicago White Sox): .000 CSP (0/3 Challenge Overturned).
5. Don Mattingly (Los Angeles Dodgers): .000 CSP (0/2 Challenges Overturned).

Most Accurate Umpires - Umpire with greatest RAP
1. Jim Reynolds: 1.000 RAP (4/4 Replays Affirmed).
2. Vic Carapazza: 1.000 RAP (3/3 Replays Affirmed).
3. Clint Fagan, Chris Guccione, Jerry Meals, Jim Wolf: 1.000 RAP (2/2 Replays Affirmed).

Umpire of Greatest Overturn % - Umpire with lowest RAP
1. Gerry Davis, Mike DiMuro: .000 RAP (0/3 Replays Affirmed).
3. Mark Carlson, Marty Foster: .000 RAP (0/2 Replays Affirmed).
5. [12 Tied]: .000 RAP (0/1 Replay Affirmed).