Rosternomics
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Red Sox BOS

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President of baseball ops: Chaim Bloom (since 2020) · GM: Brian O'Halloran (since 2020)

2021 roster — every player, value & surplus

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+6.9
WAB — wins above budget
+4.8
TAB — roster Talent above budget
92–70 (0.568)
record · made playoffs
-25M
surplus $M (value/$)
42.1
roster fWAR
$161.3M
payroll
PlayerAgeServiceGfWARSalary $MSurplus $M
Nathan Eovaldi 31 FA-elig 32 5.8 17.0 +1.7
Rafael Devers 24 arb 156 4.2 4.6 +9.2
Xander Bogaerts 28 FA-elig 144 4.1 20.0 -6.6
Eduardo Rodriguez 28 FA-elig 32 3.9 8.3 +4.2
Enrique Hernández 29 FA-elig 134 3.6 6.0 +5.8
J.D. Martinez 33 FA-elig 148 2.7 19.4 -10.4
Hunter Renfroe 29 arb 144 2.6 3.1 +5.2
Nick Pivetta 28 pre-arb 31 2.3 0.6 +6.7
Tanner Houck 25 pre-arb 18 2.2 0.2 +7.1
Alex Verdugo 25 pre-arb 146 1.9 0.6 +5.4
Garrett Whitlock 25 – 46 1.7 0.6 +4.9
Matt Barnes 31 FA-elig 60 1.3 4.5 -0.3
Garrett Richards 33 FA-elig 40 1.1 8.5 -4.9
Kyle Schwarber↔ WSN 28 FA-elig 41 1.1 2.5 +1.1
Josh Taylor 28 pre-arb 61 1.1 0.6 +2.8
Christian Vázquez 30 FA-elig 138 1.0 6.2 -3.0
Chris Sale 32 FA-elig 9 0.8 30.0 -27.4
Christian Arroyo 26 pre-arb 57 0.8 0.6 +2.0
Jose Iglesias↔ ANA 31 FA-elig 23 0.7 0.6 +1.8
Martín Pérez 30 FA-elig 36 0.6 4.5 -2.5
Adam Ottavino 35 FA-elig 69 0.6 7.2 -5.4
Bobby Dalbec 26 pre-arb 133 0.5 0.6 +0.9
Hansel Robles↔ MIN 30 FA-elig 27 0.4 0.8 +0.6
Kevin Plawecki 30 FA-elig 64 0.4 1.6 -0.4
Austin Davis↔ PIT 28 pre-arb 19 0.2 0.2 +0.3
Connor Wong 25 – 6 0.1 0.1 +0.4
John Schreiber 27 pre-arb 1 0.1 0.0 +0.3
Taylor Motter↔ COL 31 pre-arb 3 0.1 0.0 +0.3
Jonathan Araúz 22 pre-arb 28 0.1 0.2 +0.1
Eduard Bazardo 25 – 2 0.1 0.2 -0.1
Stephen Gonsalves 26 pre-arb 3 0.0 0.0 +0.1
Travis Shaw↔ MIL 31 FA-elig 28 0.0 0.5 -0.4
Yacksel Ríos↔ SEA 28 pre-arb 20 -0.0 0.2 -0.2
Brandon Brennan 29 – 1 -0.0 0.0 -0.0
Raynel Espinal 29 – 1 -0.0 0.0 -0.0
Kaleb Ort 29 – 1 -0.0 0.0 -0.1
Colten Brewer 28 pre-arb 1 -0.0 0.0 -0.2
Ryan Brasier 33 FA-elig 13 -0.1 1.2 -1.4
Phillips Valdez 29 pre-arb 28 -0.1 0.4 -0.7
Michael Feliz↔ CIN 28 FA-elig 4 -0.1 0.2 -0.5
Jack López 28 – 7 -0.1 0.0 -0.4
Kutter Crawford 25 – 1 -0.1 0.0 -0.3
Austin Brice 29 arb 13 -0.1 0.9 -1.2
Matt Andriese↔ SEA 31 FA-elig 26 -0.1 1.4 -1.8
Brandon Workman↔ CHC 32 FA-elig 19 -0.1 0.2 -0.6
Connor Seabold 25 – 1 -0.1 0.0 -0.4
Darwinzon Hernández 24 pre-arb 48 -0.2 0.6 -1.1
Danny Santana 30 FA-elig 38 -0.2 1.8 -2.3
Brad Peacock 33 FA-elig 2 -0.2 0.0 -0.7
Michael Chavis↔ PIT 25 – 31 -0.2 0.3 -0.9
Hirokazu Sawamura 33 pre-arb 55 -0.2 1.2 -1.9
Ryan Weber↔ MIL 30 – 1 -0.2 0.1 -0.9
Yairo Muñoz 26 pre-arb 5 -0.3 0.1 -1.0
Jarren Duran 24 – 33 -0.3 0.2 -1.2
Marwin Gonzalez↔ HOU 32 FA-elig 77 -0.4 2.5 -3.9
Franchy Cordero 26 arb 48 -0.8 0.1 -2.9

WAR = FanGraphs (fWAR). Green = produced more value than paid (bargain); red = paid more than produced. Service: pre-arb (<3 yr) / arb (3–6) / FA-eligible (6+). Click headers to sort.

History: front-office performance & develop-vs-buy (1985–2024)

Trade ledger (realized WAR, all-time)

Best acquisitions
PlayerYearWAR for BOS
Jason Varitek199721.2
Josh Beckett200520.1
Derek Lowe199718.0
Curt Schilling200315.2
Eduardo Rodríguez201414.3
Rick Porcello201413.1
Jarrod Saltalamacchia20108.8
Wilyer Abreu20227.5
Ones that got away
PlayerYear tradedWAR elsewhere
Jeff Bagwell199080.2
Brady Anderson198833.0
Hanley Ramírez200529.1
Jamie Moyer199628.0
Carlton Fisk198518.3
Carney Lansford198216.7
Carlos Martínez201316.0
Ernie Whitt198514.7
Rosternomics — quantifying front-office skill, attribution-clean. Follow @rosternomics on X. Decision-makers on record back to 1933; resource-controlled metrics (WAR & payroll) cover 1985–2026.
Data: FanGraphs (WAR), Baseball-Reference & the Chadwick Bureau register (rosters, IDs), the Lahman Database, Baseball America prospect rankings (via The Baseball Cube), and public payroll records. Transaction and trade data was obtained free of charge from and is copyrighted by Retrosheet. Executive birth/death data via Wikidata (CC0); bios are original. Emoji graphics by OpenMoji (CC BY-SA 4.0).
All figures are franchise-level outcomes credited to the decision-maker in the acquisition year — not solely attributable to one executive.