Players · T · Pitcher · 2017

Jesen Therrien

Philadelphia Phillies National League East

Age: 24
B/T: R/R
Height: 6' 3"
Weight: 221 lb

Born: March 18, 1993 in Montreal, QC, Canada
MLB debut: July 29, 2017

dbWAR: -.4
IP: 18.1
ERA: 8.35
FIP: 6.92
K/9: 4.9
FIP−: 159

Jesen Therrien was a relief pitcher for the Philadelphia Phillies. In 2017 he struck out 10 batters over 18.1 innings across 15 appearances, going 0-0. His ERA of 8.35 was 91.5% higher than the league average of 4.36. Stripping out defence, his 6.92 FIP suggests he pitched better than his ERA shows. He missed bats on 23.7% of swings (11.5% of every pitch he threw), walked 8.1% of the batters he faced and struck out 11.6%. His -0.4 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, 2017.

FIP6.92

K/94.9

WHIP1.69

WAR-.4

Pitching

Standard and advanced, by season.

																				Trend
2017	PHI	15	0	18.1	0	0	0	24	17	10	7	8.35	6.92	1.69	4.9	3.4	191	159	-0.4	—

Batting

Standard and advanced, by season.

																					Trend
2017	PHI	2	2	0	0	0	0	0	2	.000	.000	.000	.000	—	0.0%	100.0%	.000	-0.5	-119	-0.0	—

Platoon splits

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

Opponent batting by the side the hitter bats from, 2017. 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	41	37	14	2	4	5	.378	.439	.595	.442	12.2%
vs RHB	45	41	10	3	3	5	.244	.311	.512	.350	11.1%

Hot and cold zones

Batting average by pitch location, 2017.

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 .254.

Pitch sequencing

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

ShowBatter

SliderFour-seamSinkerChangeup

Select a count to see exactly what Jesen Therrien throws in it.

Pitch arsenal

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


Slider	44.7%	140	84.6	2,412	44.3%	34.2%	35	.286	.896
Four-Seam Fastball	30.7%	96	92.7	2,285	41.7%	14.0%	23	.391	1.201
Sinker	22.4%	70	92.2	2,147	37.1%	14.7%	18	.222	.611

Jesen Therrien'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

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Jesen Therrien

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.