Players · R · Pitcher · 2021

Ramón Rosso

Philadelphia Phillies National League East

Age: 25
B/T: R/R
Height: 6' 4"
Weight: 240 lb

Born: June 9, 1996 in Santo Domingo Centro, Dominican Republic
MLB debut: July 24, 2020

dbWAR: -.1
IP: 8.0
ERA: 5.63
FIP: 5.80
K/9: 7.9
FIP−: 136

Ramón Rosso was a relief pitcher for the Philadelphia Phillies. In 2021 he struck out 7 batters over 8.0 innings across 7 appearances, going 0-0. His ERA of 5.63 was 31.9% higher than the league average of 4.27. Stripping out defence, his 5.80 FIP suggests the ERA was no fluke. He missed bats on 17.8% of swings (9.0% of every pitch he threw), walked 8.6% of the batters he faced and struck out 20.0%. His -0.1 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2021.

FIP5.80

K/97.9

WHIP1.63

WAR-.1

WAR by season

Pitching

Standard and advanced, by season.

																				Trend
2021	PHI	7	0	8.0	0	0	0	10	5	7	3	5.63	5.80	1.63	7.9	3.4	132	136	-0.1
2020	PHI	7	1	9.2	0	1	0	9	7	11	8	6.52	5.05	1.76	10.2	7.4	146	113	0.0

Batting

Standard and advanced, by season.

																					Trend
2021	PHI	1	1	0	0	0	0	0	0	—	—	—	—	—	0.0%	0.0%	—	—	—	0.0	—

Platoon splits

How left- and right-handed hitters fare against him.

Season

Opponent batting by the side the hitter bats from, 2021. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
Split	PA	AB	H	HR	BB	SO	AVG	OBP	SLG	wOBA	K%
vs LHB	14	13	5	0	1	3	.385	.429	.462	.392	21.4%
vs RHB	21	19	5	2	2	4	.263	.333	.579	.383	19.0%

Spray chart

Where every ball he put in play landed, 2021.

Loading 1 batted balls…

Hot and cold zones

Batting average by pitch location, 2021.

Below averageLeague averageAbove average

Batting average by location of the pitch that ended each plate appearance, catcher's view. The bordered square is the strike zone; the outer band is chase territory. Cells with fewer than 8 at-bats are left grey rather than shown as signal. League average on the same attribution is .243.

Pitch sequencing

What Ramón Rosso throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

ShowBatter

Four-seamSliderChangeup

Select a count to see exactly what Ramón Rosso throws in it.

Pitch arsenal

What he throws, how hard, how often it misses, and what hitters do with it.

Season


Four-Seam Fastball	59.0%	85	94.7	2,471	50.6%	15.6%	16	.188	.566
Slider	35.4%	51	85.4	2,498	51.0%	19.2%	15	.467	1.333

Ramón Rosso's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters. BAA and OPS are what hitters did against each pitch, credited to the one that ended the plate appearance, and are left blank under 15 at-bats.

Head to head

Put Ramón Rosso beside up to three others.

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Ramón Rosso

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.