⚾ Data Hub

Merrill Kelly

Arizona Diamondbacks · RP

Throws: R

Age: 37

Ht: 6'2"

Wt: 202 lbs

5-6

W-L

5.81

ERA

13.6%

K%

9.1%

BB%

.408

xwOBA

.591

xSLG

24.1%

CSW%

43.2%

HH%

Season-by-Season Statistics

Overview						Rate			Expected			Batted Ball
Year	G	GS	W-L	IP	ERA	SO	K%	BB%	xAVG	xwOBA	xSLG	HH%	GB%	FB%	LD%
2026	12		5-6	69.2	5.81	42	13.6%	9.1%	.309	.408	.591	43.2%	37.7%	28.8%	28.4%
2025	32	32	12-9	184.0	3.52	167	22.3%	6.4%	.252	.315	.422	34.7%	43.1%	38.0%	19.0%
2024	13	13	5-1	73.2	4.03	63	21.0%	6.3%	.263	.339	.470	33.5%	42.5%	36.3%	21.2%
2023	30	30	12-8	177.2	3.29	187	25.9%	9.6%	.244	.312	.389	35.9%	45.2%	34.1%	20.7%
2022	33	33	13-8	200.1	3.37	177	22.0%	7.6%	.230	.296	.382	28.5%	42.8%	37.9%	19.3%
2021	27	27	7-11	158.0	4.44	130	19.5%	6.1%	.270	.324	.431	36.0%	43.9%	34.4%	21.6%
2020	5	5	3-2	31.1	2.59	29	23.2%	4.0%	.244	.304	.436	43.3%	45.6%	36.7%	17.8%
2019	32	32	13-14	183.1	4.42	158	20.3%	7.3%	.271	.344	.492	42.7%	42.0%	35.6%	22.4%

2026 Pitch Arsenal

Changeup 287 thrown

Usage26.0%

K%20.9%

Whiff%31.4%

Putaway%18.2%

xwOBA.396

xSLG.545

Hard Hit%46.7%

4-Seamer 282 thrown

Usage25.6%

K%5.6%

Whiff%13.8%

Putaway%7.8%

xwOBA.504

xSLG.768

Hard Hit%47.4%

Cutter 163 thrown

Usage14.8%

K%6.4%

Whiff%14.5%

Putaway%12.5%

xwOBA.459

xSLG.677

Hard Hit%50.0%

Slider 136 thrown

Usage12.3%

K%19.6%

Whiff%34.2%

Putaway%15.5%

xwOBA.285

xSLG.404

Hard Hit%22.9%

Curveball 123 thrown

Usage11.2%

K%16.7%

Whiff%23.3%

Putaway%14.8%

xwOBA.286

xSLG.422

Hard Hit%42.1%

Sinker 111 thrown

Usage10.1%

K%12.1%

Whiff%5.9%

Putaway%18.2%

xwOBA.428

xSLG.635

Hard Hit%44.4%

2025 Pitch Arsenal

Changeup 753 thrown

Usage26.6%

K%27.4%

Whiff%33.4%

Putaway%23.0%

xwOBA.278

xSLG.340

Hard Hit%36.0%

4-Seamer 643 thrown

Usage22.7%

K%24.8%

Whiff%24.7%

Putaway%19.2%

xwOBA.334

xSLG.498

Hard Hit%54.3%

Cutter 584 thrown

Usage20.6%

K%22.8%

Whiff%16.7%

Putaway%26.9%

xwOBA.330

xSLG.491

Hard Hit%44.9%

Sinker 382 thrown

Usage13.5%

K%17.6%

Whiff%10.8%

Putaway%18.0%

xwOBA.354

xSLG.449

Hard Hit%45.4%

Curveball 274 thrown

Usage9.7%

K%13.2%

Whiff%19.5%

Putaway%12.9%

xwOBA.335

xSLG.433

Hard Hit%55.4%

Slider 197 thrown

Usage7.0%

K%16.7%

Whiff%30.8%

Putaway%12.3%

xwOBA.265

xSLG.340

Hard Hit%24.4%

2024 Pitch Arsenal

Cutter 288 thrown

Usage25.2%

K%13.2%

Whiff%10.9%

Putaway%18.8%

xwOBA.413

xSLG.574

Hard Hit%50.0%

Changeup 239 thrown

Usage20.9%

K%25.7%

Whiff%31.5%

Putaway%23.8%

xwOBA.184

xSLG.202

Hard Hit%23.1%

4-Seamer 233 thrown

Usage20.4%

K%25.0%

Whiff%19.6%

Putaway%21.0%

xwOBA.386

xSLG.638

Hard Hit%59.5%

Sinker 158 thrown

Usage13.8%

K%18.0%

Whiff%9.1%

Putaway%16.7%

xwOBA.465

xSLG.632

Hard Hit%44.4%

Slider 135 thrown

Usage11.8%

K%25.7%

Whiff%39.4%

Putaway%17.3%

xwOBA.260

xSLG.313

Hard Hit%25.0%

2023 Pitch Arsenal

4-Seamer 836 thrown

Usage29.8%

K%27.5%

Whiff%25.9%

Putaway%23.2%

xwOBA.329

xSLG.422

Hard Hit%52.9%

Changeup 647 thrown

Usage23.1%

K%28.3%

Whiff%32.0%

Putaway%22.0%

xwOBA.275

xSLG.331

Hard Hit%35.3%

Cutter 515 thrown

Usage18.4%

K%23.6%

Whiff%24.5%

Putaway%21.6%

xwOBA.307

xSLG.364

Hard Hit%26.5%

Sinker 342 thrown

Usage12.2%

K%20.3%

Whiff%16.3%

Putaway%24.5%

xwOBA.347

xSLG.448

Hard Hit%50.0%

Curveball 308 thrown

Usage11.0%

K%26.2%

Whiff%25.6%

Putaway%15.5%

xwOBA.354

xSLG.423

Hard Hit%51.3%

Slider 155 thrown

Usage5.5%

K%29.2%

Whiff%41.3%

Putaway%17.5%

xwOBA.256

xSLG.344

Hard Hit%21.9%

2022 Pitch Arsenal

4-Seamer 947 thrown

Usage30.8%

K%25.8%

Whiff%23.4%

Putaway%22.7%

xwOBA.280

xSLG.335

Hard Hit%39.7%

Changeup 654 thrown

Usage21.3%

K%23.2%

Whiff%28.0%

Putaway%19.7%

xwOBA.250

xSLG.312

Hard Hit%31.2%

Sinker 539 thrown

Usage17.6%

K%15.4%

Whiff%17.6%

Putaway%18.3%

xwOBA.358

xSLG.469

Hard Hit%39.2%

Cutter 510 thrown

Usage16.6%

K%17.9%

Whiff%20.8%

Putaway%21.2%

xwOBA.308

xSLG.450

Hard Hit%32.6%

Curveball 414 thrown

Usage13.5%

K%26.4%

Whiff%28.6%

Putaway%18.4%

xwOBA.326

xSLG.423

Hard Hit%42.4%

2021 Pitch Arsenal

4-Seamer 775 thrown

Usage32.0%

K%17.3%

Whiff%19.4%

Putaway%18.6%

xwOBA.361

xSLG.516

Hard Hit%43.5%

Sinker 447 thrown

Usage18.4%

K%15.1%

Whiff%13.4%

Putaway%18.1%

xwOBA.343

xSLG.442

Hard Hit%48.0%

Curveball 438 thrown

Usage18.1%

K%26.8%

Whiff%26.2%

Putaway%23.8%

xwOBA.288

xSLG.391

Hard Hit%42.0%

Changeup 422 thrown

Usage17.4%

K%16.7%

Whiff%27.4%

Putaway%15.1%

xwOBA.319

xSLG.420

Hard Hit%36.3%

Cutter 343 thrown

Usage14.1%

K%23.6%

Whiff%16.1%

Putaway%25.0%

xwOBA.284

xSLG.341

Hard Hit%22.7%

2020 Pitch Arsenal

Sinker 83 thrown

Usage17.5%

K%22.6%

Whiff%22.5%

Putaway%28.0%

xwOBA.263

xSLG.342

Hard Hit%43.5%

2019 Pitch Arsenal

4-Seamer 1,106 thrown

Usage37.4%

K%22.0%

Whiff%20.4%

Putaway%19.3%

xwOBA.355

xSLG.491

Hard Hit%41.6%

Curveball 632 thrown

Usage21.4%

K%34.5%

Whiff%30.5%

Putaway%23.8%

xwOBA.261

xSLG.383

Hard Hit%47.2%

Cutter 538 thrown

Usage18.2%

K%12.3%

Whiff%19.1%

Putaway%16.3%

xwOBA.354

xSLG.504

Hard Hit%39.3%

Changeup 397 thrown

Usage13.4%

K%13.6%

Whiff%24.1%

Putaway%13.5%

xwOBA.405

xSLG.607

Hard Hit%29.6%

Sinker 287 thrown

Usage9.7%

K%11.5%

Whiff%16.2%

Putaway%16.7%

xwOBA.400

xSLG.566

Hard Hit%38.1%

Platoon Splits - 2026

Split	PA	xAVG	xwOBA	xSLG	K%	BB%	HR
vs LHB	181	.320	.438	.642	11.0%	11.6%	10
vs RHB	128	.295	.365	.524	17.2%	5.5%	5
Home	41	.322	.432	.653	23.0%	10.0%	2
Road	59	.248	.332	.433	19.0%	18.0%	1

Recent Game Logs - 2026

Game			Pitching								Vegas			Weather		DFS
Date	Opp	Dec	IP	H	ER	BB	SO	Pit	BF	CSW%	ML	O/U	TT	Tmp	Wind	DKFP
Jun 16	vs LAA	L	5.1	11	6	1	4	88	27	4.5%	-112	8.5	4.3	-	-	0.8
Jun 11	@ MIA	L	6.0	4	2	2	1	74	23	1.4%	-102	8.5	4.1	-	-	7.9
Jun 5	vs WSH	L	5.0	6	7	3	4	85	25	4.7%	-136	9.0	5.0	-	-	-0.8
May 25	@ SF	W	7.0	4	2	2	4	96	26	4.2%	+109	7.5	3.4	-	-	20.2
May 20	vs SF	W	6.0	8	3	0	4	85	26	4.7%	-120	8.5	4.4	-	-	14.7
May 15	@ COL	W	9.0	4	1	0	3	100	31	3.0%	-119	11.5	6.0	-	-	28.4
May 9	vs NYM	W	7.0	3	1	3	6	96	26	6.2%	-108	9.5	4.7	-	-	26.2
May 3	@ CHC	L	4.1	8	6	3	5	92	24	5.4%	+129	12.0	5.0	-	-	1.2
Apr 28	@ MIL	L	5.0	6	5	5	1	104	24	1.0%	+113	8.0	3.6	-	-	-3.4
Apr 14	@ BAL	W	5.1	5	2	4	3	86	24	3.5%	+141	9.0	3.6	-	-	12.6