DataBaseball
2026
Jeferson Quero headshot

C · 2026

Jeferson Quero

Age
24
B/T
R/R
Height
6' 0"
Weight
203 lb
Number
#15
Born
October 8, 2002 in Barquisimeto, Venezuela
MLB debut
March 29, 2026
dbWAR
.0
1 season(s)
PA
2
AVG
.000
OBP
.500
SLG
.000
wRC+
132
100 = avg

Jeferson Quero is a catcher for the Milwaukee Brewers. In 2026 he hit 0 home runs and knocked in 0 RBIs, notching 0 hits across 2 plate appearances in 1 game. His batting average was .000, 100.0% lower than the league average of .244. He reached base at a .500 clip and slugged .000, for an OPS of .500, 30.5% lower than the league mark of .719. He averaged 85.6 mph off the bat and made contact on 50.0% of his swings. Adjusted for his ballpark and league, his 132 wRC+ puts his offence 32% above average. That comes to 0.0 dbWAR — +0.1 runs with the bat, -0.0 on the bases, +0.0 for the position he plays, against replacement level. It includes no fielding: defensive runs are proprietary and are not estimated here, so the figure credits playing a demanding position but not playing it well.

League context

Percentile among qualified batters, 2026.

wRC+132
wOBA.362
ISO.000
BB%50.0%
WAR.0

How the WAR is built

Runs above replacement, 2026. These four terms sum to +0.2 runs, divided by runs-per-win to give WAR.

Batting+0.1Baserunning-0.0Position+0.0Replacement+0.1
BattingBaserunningPositionReplacement

Platoon splits

How he hits left- and right-handed pitching.

Batting by the hand the pitcher throws with, 2026. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHP210010.000.500.000.3620.0%

Spray chart

Where every ball he put in play landed, 2026.

Loading 1 batted balls…

Contact quality

How hard and at what angle he hits it, over 1 tracked batted balls in 2026. Percentiles are against qualified batters.

Barrel rate
0.0%
0 barrels
Exit velocity
85.6
mph average
Max exit velo
85.6
mph, hardest hit
Hard hit
0.0%
95 mph or better
Sweet spot
0.0%
8–32° launch
Launch angle
2.0°
average
Barrel rate0.0%
Exit velocity85.6 mph
Hard hit rate0.0%
Contact rate50.0%

A barrel is a batted ball whose exit velocity and launch angle have historically produced at least a .500 average and 1.500 slugging — 98 mph within 26–30°, widening to 8–50° by 116 mph. Reconstructed from Statcast's published anchor points, which reproduces them exactly; the interior is within a degree. Sweet spot (8–32°) is an exact definition.

Hot and cold zones

Batting average by pitch location, 2026.

Situational hitting

How Jeferson Quero hits by base state, outs, score and late-game pressure — each read against his own season line.

Split by
By who is on base when he comes up. The season line is repeated as the baseline.
SituationPAABHHRRBIBBSOAVGOBPSLGwOBA
All situations2.000.500.000.362
Runner on first · thin2100010.000.500.000.362
Runners on · thin2100010.000.500.000.362

Runners on includes runners in scoring position, which is the convention every reference uses. Rows under 25 plate appearances are marked thin — at that size a rate moves several dozen points on one hit. Counted from play-by-play, 2026.

Batting

Standard and advanced, by season.

Trend
202612000010.000.500.000.000.00050.0%0.0%.362+0.11320.0

Head to head

Put Jeferson Quero beside up to three others.

Compare — add up to 3 more players
Jeferson Quero
How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.