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William Kempner

Miami Marlins · RP

Throws: R

Age: 25

Ht: 6'0"

Wt: 222 lbs

1-0

W-L

0.00

ERA

30.3%

K%

6.1%

BB%

.219

xwOBA

.219

xSLG

33.8%

CSW%

15.0%

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	6		1-0	9.0	0.00	10	30.3%	6.1%	.174	.219	.219	15.0%	30.0%	20.0%	35.0%

2026 Pitch Arsenal

4-Seamer 64 thrown

Usage49.2%

K%42.9%

Whiff%45.5%

Putaway%37.5%

xwOBA.285

xSLG.225

Hard Hit%20.0%

Sweeper 30 thrown

Usage23.1%

K%9.1%

Whiff%27.3%

Putaway%6.3%

xwOBA.160

xSLG.206

Hard Hit%10.0%

Sinker 16 thrown

Usage12.3%

K%16.7%

Whiff%12.5%

Putaway%25.0%

xwOBA.241

xSLG.304

Hard Hit%20.0%

Platoon Splits - 2026

Split	PA	xAVG	xwOBA	xSLG	K%	BB%	HR
vs LHB	18	.037	.078	.061	50.0%	5.6%	0
vs RHB	15	.354	.389	.425	6.7%	6.7%	0
Home	16	.119	.184	.136	31.3%	12.5%	0
Road	17	.222	.252	.291	29.4%	0.0%	0

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 15	@ PHI	-	2.1	0	0	0	2	33	8	6.1%	+177	7.5	2.6	-	-	8.7
Jun 10	vs ARI	W	2.0	0	0	2	3	36	8	8.3%	-110	8.0	4.0	-	-	13.3
Jun 5	vs TB	-	1.1	1	0	0	1	13	5	7.7%	+113	7.5	3.4	-	-	4.4
May 31	@ NYM	-	1.1	2	0	0	3	28	6	10.7%	+130	7.5	3.1	-	-	7.8
May 30	@ NYM	-	1.0	0	0	0	0	12	3	0.0%	+113	7.0	3.1	-	-	2.3
May 5	vs BAL	-	1.0	0	0	0	1	8	3	12.5%	-138	8.5	4.7	-	-	4.3