Player stats

Opponents' Weighted Average Minus Expected 2021

Recorded weighted batting average minus the estimate, using the same completed games and batting weights. For pitchers, these are opponents' results. MLBDB estimates describe recorded contact, not future performance.

Season

At least 100 balls with recorded speed and angle. MLBDB estimates from recorded ball speed and angle. Every contact contribution needed by the statistic must be available. Missing or unsupported inputs remain N/A. These describe recorded contact, not future performance. Data through December 31, 2021. Data refreshed Sep 13, 2026, 2:31 PM UTC.

No. 1 / Opponents' Weighted Average Minus Expected / 2021

Aaron Slegers

LAA

0.066

Season leader

Opponents' Weighted Average Minus Expected2021 season
#	Player	Team	Model balls	Measured%	wOBA − MLBDB xwOBA
1	A. SlegersAaron Slegers	LAA	108	100.0%	0.066
2	C. PonceCody Ponce	PIT	131	100.0%	0.065
3	A. BandaAnthony Banda	PIT	106	100.0%	0.060
4	R. MonteroRafael Montero	HOU	161	100.0%	0.049
5	J. SmithJoe Smith	SEA	128	100.0%	0.047
6	B. BowdenBen Bowden	COL	113	100.0%	0.046
7	J. SoriaJoakim Soria	TOR	106	100.0%	0.044
8	E. RodriguezEduardo Rodriguez	BOS	441	100.0%	0.042
9	P. MatonPhil Maton	HOU	174	100.0%	0.040
10	J. FariaJake Faria	AZ	107	100.0%	0.039
11	C. SaleChris Sale	BOS	115	100.0%	0.035
12	D. HollandDerek Holland	DET	153	100.0%	0.035
13	T. MayTrevor May	NYM	159	100.0%	0.034
14	A. MillerAndrew Miller	STL	103	100.0%	0.034
15	K. FreelandKyle Freeland	COL	368	100.0%	0.033
16	T. MegillTylor Megill	NYM	250	100.0%	0.032
17	A. PlutkoAdam Plutko	BAL	181	100.0%	0.031
18	C. EstévezCarlos Estévez	COL	187	100.0%	0.030
19	P. BlackburnPaul Blackburn	OAK	137	100.0%	0.030
20	J. JiménezJoe Jiménez	DET	110	100.0%	0.030
21	M. WislerMatt Wisler	TB	121	100.0%	0.029
22	H. CastellanosHumberto Castellanos	AZ	149	100.0%	0.029
23	M. MooreMatt Moore	PHI	231	100.0%	0.029
24	J. QuintanaJose Quintana	SF	176	100.0%	0.029
25	J. WebbJacob Webb	ATL	105	100.0%	0.028
26	K. MaedaKenta Maeda	MIN	300	100.0%	0.028
27	C. ValdezCésar Valdez	BAL	150	100.0%	0.028
28	J. LuzardoJesús Luzardo	MIA	287	100.0%	0.027
29	A. YoungAlex Young	CLE	173	100.0%	0.026
30	T. EshelmanThomas Eshelman	BAL	104	100.0%	0.026
31	J. ArrietaJake Arrieta	SD	336	100.0%	0.026
32	A. OttavinoAdam Ottavino	BOS	163	100.0%	0.025
33	A. ClaudioAlex Claudio	LAA	103	100.0%	0.025
34	J. KowarJackson Kowar	KC	103	100.0%	0.025
35	P. FairbanksPete Fairbanks	TB	111	100.0%	0.024
36	T. WilliamsTrevor Williams	NYM	280	100.0%	0.024
37	J. GrayJosiah Gray	WSH	196	100.0%	0.024
38	H. NerisHéctor Neris	PHI	176	100.0%	0.023
39	J. SteeleJustin Steele	CHC	157	100.0%	0.023
40	A. GarrettAmir Garrett	CIN	125	100.0%	0.023
41	J. SpringsJeffrey Springs	TB	102	100.0%	0.022
42	M. BarnesMatt Barnes	BOS	116	100.0%	0.022
43	D. KremerDean Kremer	BAL	172	100.0%	0.021
44	M. MayersMike Mayers	LAA	196	100.0%	0.020
45	S. DoolittleSean Doolittle	SEA	144	99.3%	0.020
46	D. NorrisDaniel Norris	MIL	158	100.0%	0.020
47	S. HentgesSam Hentges	CLE	218	100.0%	0.020
48	A. BradleyArchie Bradley	PHI	159	100.0%	0.019
49	M. KellerMitch Keller	PIT	322	100.0%	0.019
50	V. VelasquezVince Velasquez	SD	262	100.0%	0.019

wOBA − MLBDB xwOBA: Recorded weighted batting average minus the estimate, using the same completed games and batting weights. For pitchers, these are opponents' results. MLBDB estimates describe recorded contact, not future performance.

Understanding Opponents' Weighted Average Minus Expected

Read rates alongside playing time. A small sample can produce an extreme result, and a missing value is different from zero.

Season rankings use regular-season records. A player has one combined row across teams; the team label identifies the associated team, not a separate team stint.

Source: MLB statistics and MLBDB derived measures. Formulas describe the measure above. Data refreshed Sep 13, 2026, 2:31 PM UTC.