Trevor Kelley

Relief Pitcher

Seattle Mariners

Bats / Throws	Right / Right
Date of Birth	10/20/1993 (31)
Height, Weight	6'2", 210 lb
Hometown	Providence, RI

2023 Season Stats

Needs more playing time to qualify

MLB Rank MLB Average

	Sv	IP	ERA	WHIP	K%	BB%
	0	15.1	5.87	1.43	15.9%	8.7%

	269^th 3 Sv	350^th 44 IP	309^th 4.16 ERA	250^th 1.32 WHIP	319^th 23.7% K%	143^rd 9.5% BB%

	FB MPH	SwStr%	CSW%	Str-ICR	MTK%	PLV	PLA
	89.1	9.9%	31.3%	-	6.3%	5.27	-

	325^th 94.4 FB MPH	283^rd 12.6% SwStr%	82^nd 29.3% CSW%	- Str-ICR	94^th - MTK%	25^th 4.97 PLV	- PLA

Articles

8/25/2023Fantasy Baseball Relief Pitcher Rankings - 8/25/23 Depth ChartNate Kosher

6/4/2023Fantasy Baseball SP Roundup - Berrí-Oh-So-SweetNick Pollack

6/3/2023Fantasy Baseball Relief Pitcher Rankings - 6/2/23 Depth ChartEthan McCollister

5/31/2023Fantasy Baseball Relief Pitcher Rankings - 5/31/23 Depth ChartJohn Wallace

5/30/2023Fantasy Baseball Relief Pitcher Rankings - 5/30/23 Depth ChartBenjamin Haller

See More Articles

Stats Glossary

Overview

Hide 2023 MLB Percentile | Hide 2023 MLB Average

Year	Team	G	GS	IP	W-L	Sv	Hld	ERA	WHIP	xERA	FIP	xFIP	PLA	K%	BB%	H/9	HR/9	BABIP	HR/FB%	LOB%	ICR	GB%	SwStr%	CSW%	IPR	PLV
2019	BOS	10	0	8.1	0-3	0	1	8.64	1.68	-	6.79	-	-	15.0%	12.5%	9.7	2.16	.259	-	53.6%	-	-	6.7%	26.4%	0.42	-
2020	PHI	4	0	3.1	0-0	0	0	10.80	2.70	6.54	9.32	4.25	6.54	26.3%	5.3%	21.6	5.40	.545	40.0%	80.6%	53.8%	30.8%	7.8%	28.6%	0.51	4.81
2022	MIL	18	0	23.2	1-0	0	2	6.08	1.44	5.43	6.47	4.76	4.47	21.5%	8.4%	9.5	2.66	.273	22.6%	72.5%	31.5%	34.2%	10.0%	27.2%	0.44	4.91
2023	TB	10	3	15.1	0-1	0	1	5.87	1.43	7.35	6.83	5.83	3.35	15.9%	8.7%	9.4	2.35	.261	20.0%	76.1%	50.0%	36.0%	9.9%	31.3%	0.54	5.27
RP MLB Percentile		6	99	1	8-70	25	22	13	30	2	3	4	-	11	60	25	4	77	14	67	3	16	21	77	-	93
RP MLB AVG		40	0	44.0	3-2	3	7	4.16	1.32	4.24	4.16	4.17	4.02	23.7%	9.5%	8.2	1.08	.293	13.0%	72.3%	36.7%	45.6%	12.6%	29.3%	0.53	4.97
Career		42	3	50.2	1-4	0	4	6.75	1.56	-	-	-	3.53	19.1%	8.9%	10.3	2.66	.287	26.8%	71.0%	33.3%	34.6%	9.3%	28.3%	0.47	5.02

Repertoire

Sinker | 53%
Sweeper | 42%
Slider | 4%
Changeup | 1%
Curveball | 0%
All

2019 2020 2022 2023 All

Hide 2023 MLB Percentile | Hide 2023 MLB Average

Year	Usage%	MPH	Zone%	O-Sw%	Str%	SwStr%	CS%	CSW%	Str-ICR	GB%	FB%	ICR	HR/FB%	AVG	BABIP	HL	HP	MTK%	PLV
2019	37.4%	88.2	-	-	67.2%	6.6%	24.6%	31.1%	-	-	-	-	-	.273	.333	-	-	-	-
2020	55.8%	90.2	58.1%	27.8%	62.8%	7.0%	23.3%	30.2%	48.8%	20.0%	40.0%	60.0%	50.0%	.500	.750	+2	2.0	7.0%	4.93
2021	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	64.1%	89.9	50.5%	24.0%	66.4%	7.1%	22.4%	29.5%	55.6%	41.2%	37.3%	31.4%	15.8%	.231	.250	+1	0.7	7.8%	4.94
2023	52.9%	89.1	45.8%	39.7%	70.1%	6.9%	27.8%	34.7%	49.3%	43.8%	34.4%	46.9%	9.1%	.250	.258	-2	-0.5	11.8%	5.04
RP MLB Percentile	86	7	5	90	63	63	77	78	88	12	85	20	51	41	46	30	37	59	67
RP MLB AVG	30.0%	93.5	50.7%	27.7%	66.3%	6.8%	21.0%	27.9%	50.9%	57.7%	21.6%	38.7%	16.7%	.304	.324	-1	-0.1	10.6%	4.72

Year	xAVG	xwOBA	xBABIP	xwoBACON	HH%	Brl%	ICR	EV	FB EV	LA	xMov	yMov	xRP	yRP	Ext	Spin
2019	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2020	.270	.360	.361	.509	40.0%	0.0%	60.0%	93.0	92.6	23.2	11.3	4.7	-3.8	4.2	6.8	2,282
2021	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	.230	.334	.258	.348	19.6%	9.8%	31.4%	83.2	86.5	16.7	11.4	2.3	-3.9	3.6	6.7	2,229
2023	.311	.396	.314	.397	43.8%	9.4%	46.9%	87.8	89.0	9.7	12.7	0.9	-4.1	3.8	6.7	2,162
RP MLB Percentile	17	14	18	13	-	11	20	56	41	17	100	8	0	1	72	50
RP MLB AVG	.279	.349	.296	.342	-	5.8%	38.7%	88.4	86.4	3.6	9.2	4.7	-0.8	5.5	6.4	2,146

Year	P	TBF	Strikes	Balls	1B	2B	3B	HR	H	TB	TIC	K	BB	HBP
2019	61	15	41	20	1	2	0	0	3	3	0	3	3	0
2020	43	9	27	16	3	0	0	1	4	6	3	3	1	0
2021	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	295	76	196	99	10	1	1	3	15	22	16	14	9	2
2023	144	41	101	43	6	2	0	1	9	11	15	4	3	2
RP MLB Percentile	49	55	50	52	41	25	15	21	38	-	-	51	39	19
RP MLB AVG	150	40	101	50	7	2	0	1	10	12	10	6	4	1

Year	GB%	LD%	FB%	PU%	Pull%	Cent%	Oppo%	Fl&B%	Solid%	Brl%	SS%	HH%	PC%	ICR
2019	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2020	20.0%	40.0%	40.0%	20.0%	20.0%	20.0%	60.0%	40.0%	20.0%	0.0%	40.0%	40.0%	40.0%	60.0%
2021	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	41.2%	21.6%	37.3%	13.7%	37.3%	31.4%	31.4%	19.6%	2.0%	9.8%	37.3%	19.6%	68.7%	31.4%
2023	43.8%	21.9%	34.4%	3.1%	40.6%	18.8%	40.6%	28.1%	9.4%	9.4%	40.6%	43.8%	53.1%	46.9%
RP MLB Percentile	12	18	85	0	57	14	86	28	9	11	8	-	-	20
RP MLB AVG	57.7%	20.7%	21.6%	5.8%	37.6%	34.2%	28.2%	24.7%	4.7%	5.8%	31.2%	-	64.8%	38.7%

Year	AVG	wOBA	BABIP	BACON	HL	xAVG	xwOBA	xBABIP	xwoBACON	EV	FB EV	LA	HR/FB%
2019	.273	.358	.333	.333	-	-	-	-	-	-	-	-	-
2020	.500	.592	.750	.800	+2	.270	.360	.361	.509	93.0	92.6	23.2	50.0
2021	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	.231	.336	.250	.294	+1	.230	.334	.258	.348	83.2	86.5	16.7	15.8
2023	.250	.325	.258	.281	-2	.311	.396	.314	.397	87.8	89.0	9.7	9.1
RP MLB Percentile	41	37	46	41	30	17	14	18	13	56	41	17	51
RP MLB AVG	.304	.369	.324	.347	-1	.279	.349	.296	.342	88.4	86.4	3.6	16.7

Year	Zone%	Str%	Swing%	O-Sw%	Whiff%	Foul Str%	Con%	Z-Con%	O-Con%	CS%	SwStr%	CSW%	SIP%	BIP%	PLUS%	IPR	Str-ICR
2019	-	67.2%	42.6%	-	15.4%	21.3%	84.6%	-	-	24.6%	6.6%	31.1%	22.0%	14.8%	62.3%	0.67	-
2020	58.1%	62.8%	39.5%	27.8%	17.6%	20.9%	82.4%	83.3%	80.0%	23.3%	7.0%	30.2%	18.5%	11.6%	53.5%	0.63	48.8%
2021	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	50.5%	66.4%	44.1%	24.0%	16.2%	19.7%	83.8%	87.4%	74.3%	22.4%	7.1%	29.5%	26.0%	17.3%	61.4%	0.57	55.6%
2023	45.8%	70.1%	42.4%	39.7%	16.4%	13.2%	83.6%	83.3%	83.9%	27.8%	6.9%	34.7%	31.7%	22.2%	63.9%	0.65	49.3%
RP MLB Percentile	5	63	45	90	66	11	66	91	32	77	63	78	18	16	53	41	88
RP MLB AVG	50.7%	66.3%	45.3%	27.7%	14.9%	18.4%	85.1%	88.9%	75.6%	21.0%	6.8%	27.9%	-	-	59.5%	0.48	-

Year	Zone%	aLoc%	x-mLoc%	gLoc%	hiLoc%	y-mLoc%	loLoc%	iLoc%	oLoc%	mmLoc%
2019	-	-	-	-	-	-	-	-	-	-
2020	58.1%	23.3%	30.2%	46.5%	37.2%	41.9%	20.9%	27.9%	41.9%	14.0%
2021	-	-	-	-	-	-	-	-	-	-
2022	50.5%	34.6%	27.5%	38.0%	59.3%	27.8%	12.9%	32.5%	40.0%	7.8%
2023	45.8%	63.9%	20.1%	16.0%	27.1%	42.4%	30.6%	47.2%	32.6%	9.0%
RP MLB Percentile	5	89	13	23	48	93	26	81	36	63
RP MLB AVG	50.7%	49.7%	25.2%	25.1%	27.8%	29.7%	42.5%	42.0%	32.8%	7.4%

Year	Early%	Behind%	2-Str%	Early BIP%	F-Str%	TF-Str%	ECS%	2-Str O Sw%	PAR%
2019	45.9%	21.3%	32.8%	7.1%	91.7%	83.3%	32.1%	-	15.0%
2020	60.5%	11.6%	27.9%	15.4%	58.3%	50.0%	34.6%	16.7%	25.0%
2021	-	-	-	-	-	-	-	-	-
2022	54.9%	13.6%	31.5%	14.2%	63.0%	52.1%	32.7%	15.1%	15.1%
2023	57.6%	17.4%	25.0%	12.0%	82.9%	71.4%	38.6%	33.3%	11.1%
RP MLB Percentile	19	30	74	64	90	84	89	75	39
RP MLB AVG	64.4%	16.0%	19.6%	17.8%	63.4%	49.9%	25.1%	24.9%	16.2%

Year	MPH	Ext	iHB	iVB	Total Break	VAA	Height Adj. VAA	Spin	PLV
2019	88.2	-	-	-	-	-	-	-	-
2020	90.2	6.8	18.2	7.1	19.5	-4.2	1.8	2,282	4.93
2021	-	-	-	-	-	-	-	-	-
2022	89.9	6.7	18.4	4.2	19.0	-3.5	2.1	2,229	4.94
2023	89.1	6.7	20.5	0.8	20.8	-4.5	1.7	2,162	5.04
RP MLB Percentile	7	72	99	11	95	96	97	50	67
RP MLB AVG	93.5	6.4	-	-	-	-	-	2,146	4.72

Year	P	PLV	PLA	QP%	AP%	BP%	Q-BP%	HP	HL
2019	61	-	-	-	-	-	-	-	-
2020	43	4.93	6.03	41.9%	27.9%	30.2%	11.6%	2.0	+2
2021	-	-	-	-	-	-	-	-	-
2022	295	4.94	4.35	50.5%	12.9%	36.6%	13.9%	0.7	+1
2023	144	5.04	4.07	43.1%	20.8%	36.1%	6.9%	-0.5	-2
RP MLB Percentile	49	67	-	64	54	63	63	37	30
RP MLB AVG	150	4.72	0.92	39.8%	19.5%	40.7%	-0.8%	-0.1	-1

Year	Usage%	MPH	Zone%	O-Sw%	Str%	SwStr%	CS%	CSW%	Str-ICR	GB%	FB%	ICR	HR/FB%	AVG	BABIP	HL	HP	MTK%	PLV
2019	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2020	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2021	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2023	41.9%	76.2	38.6%	32.9%	58.8%	14.9%	14.0%	28.9%	44.7%	28.6%	35.7%	57.1%	20.0%	.238	.308	+6	4.5	0.0%	5.55
RP MLB Percentile	88	4	42	43	32	65	50	57	73	16	14	19	17	26	23	42	10	0	83
RP MLB AVG	22.1%	81.7	36.8%	30.2%	57.3%	14.6%	13.3%	27.9%	45.5%	37.0%	40.4%	39.9%	11.4%	.227	.297	+6	1.7	0.0%	5.51

Year	xAVG	xwOBA	xBABIP	xwoBACON	HH%	Brl%	ICR	EV	FB EV	LA	xMov	yMov	xRP	yRP	Ext	Spin
2019	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2020	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2021	-	-	-	-	-	-	-	-	-	-	-	-