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Monday, February 6, 2023

MLB Hires 10 Call-Up Umpires to Full-Time Staff

After a consolidated-era 10 major league umpires retired following the 2022 season, MLB has hired 10 call-ups to fill the vacancies. The new full-time umpires on Major League Baseball's staff range in age from 31 (Brennan Miller) to 40 (Nick Mahrley) and bring a combined 2,608 games of MLB experience during their service as MiLB call-up umpires. 

The most experienced new-hires (Shane Livensparger and Mahrley) began their minor league careers in 2009 while Edwin Moscoso began working in professional baseball most recently (2014). Livensparger and Mahrley tie for the most games of MLB experience at their 2023 hiring (382 games apiece) while Malachi Moore has the least games worked at the major league level (156).

In the table below, we have summarized these data, along with stats and ranks for replay overturn rate and plate scores (listed below the table). For both the Replay Rank and Plate Rank columns, the highest attainable rank is one, the lowest 24, and are compared to the field of all 2022 call-up umpires for whom we have data.
Name Age First Year of MiLB MLB Experience Replay Overturn Rate Replay Rank Plate Score Plate Rank
Bacchus, Erich 32 2012 234 12.3 14 93.5 19
Beck, Adam 34 2013 253 18.1 5 94.4 4
Ceja, Nestor 35 2012 253 11.5 16 93.7 15
Livensparger, Shane 38 2009 382 9.3 21 94.3 7
Mahrley, Nick 40 2009 382 10.6 19 93.6 17
Miller, Brennan 31 2013 195 16.3 6 93.5 18
Moore, Malachi 32 2012 156 11.1 17 92.1 24
Moscoso, Edwin 33 2014 333 15.1 9 94.6 2
Tosi, Alex 34 2011 187 9.1 22 94.5 3
Valentine, Junior 35 2011 233 13.1 13 94.3 6

Plate Score Accuracy Rank, 2022 MiLB Call-Ups [Compiled Data is Career-Based]
1. Ballou, Brock: 94.8;
2. Moscoso, Edwin: 94.6;
3. Tosi, Alex: 94.5;
4. Beck, Adam: 94.4 [94.39];
5. Riggs, Jeremy: 94.4 [94.35];
6. Valentine, Junior: 94.3 [94.33];
7. Livensparger, Shane: 94.3 [94.31];
8. MacKay, Alex: 94.2;
9. Williams, Lew: 94.2;
10. Wills, Ryan: 94.1;
11. Merzel, Dan: 94.0;
12. Bacon, John: 93.8;
13. Vondrak, Clint: 93.7 [93.74];
14. Tomlinson, Nate: 93.7 [93.66];
15. Ceja, Nestor: 93.7 [93.65];
16. Ramos, Charlie: 93.6 [93.64];
17. Mahrley, Nick: 93.6 [93.55];
18. Miller, Brennan: 93.5 [93.53];
19. Bacchus, Erich: 93.5 [93.52];
20. Clemons, Paul: 93.4;
21. Arrieta, David: 93.2;
22. Rosenberg, Randy: 93.1;
23. Navas, Jose: 92.9;
24. Moore, Malachi: 92.1.

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