Mark Leiter Jr

Oakland Athletics · RP

Throws: R

Age: 35

Ht: 6'0"

Wt: 210 lbs

0-1

W-L

5.96

ERA

23.8%

6.9%

BB%

.341

xwOBA

.425

xSLG

29.2%

CSW%

34.8%

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	24		0-1	22.2	5.96	24	23.8%	6.9%	.304	.341	.425	34.8%	36.2%	26.1%	30.4%
2025	59	0	6-7	48.1	4.84	54	24.7%	7.8%	.235	.299	.358	22.9%	45.5%	35.0%	19.6%
2024	60	0	4-5	58.0	4.50	86	33.6%	8.6%	.224	.288	.347	30.3%	45.8%	33.3%	20.8%
2023	69	0	1-3	64.1	3.50	77	28.6%	8.9%	.227	.310	.380	31.3%	45.3%	32.1%	22.6%
2022	35	4	2-7	67.2	3.99	73	25.9%	8.9%	.230	.306	.377	29.9%	48.9%	32.8%	18.4%

2026 Pitch Arsenal

Split-Finger 123 thrown

Usage33.0%

K%52.5%

Whiff%42.7%

Putaway%28.4%

xwOBA.223

xSLG.272

Hard Hit%22.2%

Sinker 94 thrown

Usage25.2%

K%0.0%

Whiff%9.1%

Putaway%0.0%

xwOBA.381

xSLG.468

Hard Hit%18.2%

Curveball 65 thrown

Usage17.4%

K%9.1%

Whiff%34.8%

Putaway%16.7%

xwOBA.383

xSLG.540

Hard Hit%33.3%

4-Seamer 56 thrown

Usage15.0%

K%6.3%

Whiff%8.7%

Putaway%5.9%

xwOBA.324

xSLG.318

Hard Hit%75.0%

Cutter 30 thrown

Usage8.0%

K%12.5%

Whiff%22.2%

Putaway%33.3%

xwOBA.558

xSLG.670

Hard Hit%60.0%

2025 Pitch Arsenal

Sinker 322 thrown

Usage38.7%

K%8.5%

Whiff%8.8%

Putaway%20.0%

xwOBA.359

xSLG.453

Hard Hit%37.7%

Split-Finger 254 thrown

Usage30.5%

K%40.4%

Whiff%42.8%

Putaway%23.2%

xwOBA.242

xSLG.294

Hard Hit%34.8%

Curveball 212 thrown

Usage25.5%

K%26.5%

Whiff%50.0%

Putaway%32.1%

xwOBA.265

xSLG.239

Hard Hit%20.0%

2024 Pitch Arsenal

Split-Finger 366 thrown

Usage36.1%

K%60.0%

Whiff%56.5%

Putaway%30.7%

xwOBA.169

xSLG.161

Hard Hit%31.4%

Sinker 290 thrown

Usage28.6%

K%9.9%

Whiff%9.9%

Putaway%19.5%

xwOBA.439

xSLG.562

Hard Hit%46.8%

Cutter 77 thrown

Usage7.6%

K%16.0%

Whiff%16.2%

Putaway%28.6%

xwOBA.375

xSLG.557

Hard Hit%57.9%

2023 Pitch Arsenal

Split-Finger 359 thrown

Usage34.0%

K%50.8%

Whiff%48.2%

Putaway%30.1%

xwOBA.215

xSLG.231

Hard Hit%31.3%

Sinker 292 thrown

Usage27.7%

K%5.6%

Whiff%16.3%

Putaway%16.7%

xwOBA.385

xSLG.502

Hard Hit%37.9%

Cutter 218 thrown

Usage20.6%

K%10.0%

Whiff%20.3%

Putaway%17.4%

xwOBA.353

xSLG.421

Hard Hit%56.3%

2022 Pitch Arsenal

Sinker 250 thrown

Usage23.0%

K%11.7%

Whiff%16.2%

Putaway%20.6%

xwOBA.327

xSLG.386

Hard Hit%22.2%

4-Seamer 248 thrown

Usage22.8%

K%8.9%

Whiff%17.5%

Putaway%9.8%

xwOBA.509

xSLG.718

Hard Hit%61.9%

Split-Finger 246 thrown

Usage22.7%

K%53.0%

Whiff%53.6%

Putaway%34.9%

xwOBA.159

xSLG.118

Hard Hit%13.9%

Curveball 181 thrown

Usage16.7%

K%0.0%

Whiff%23.2%

Putaway%0.0%

xwOBA.272

xSLG.337

Hard Hit%25.9%

2018 Pitch Arsenal

Sinker 129 thrown

Usage27.6%

K%5.9%

Whiff%18.6%

Putaway%20.0%

xwOBA.361

xSLG.467

Hard Hit%32.1%

Split-Finger 128 thrown

Usage27.4%

K%34.1%

Whiff%27.8%

Putaway%19.2%

xwOBA.233

xSLG.222

Hard Hit%37.5%

4-Seamer 113 thrown

Usage24.2%

K%15.4%

Whiff%21.4%

Putaway%17.4%

xwOBA.468

xSLG.707

Hard Hit%50.0%

2017 Pitch Arsenal

4-Seamer 549 thrown

Usage36.4%

K%7.4%

Whiff%10.8%

Putaway%9.4%

xwOBA.426

xSLG.592

Hard Hit%41.9%

Split-Finger 425 thrown

Usage28.2%

K%38.2%

Whiff%32.2%

Putaway%25.2%

xwOBA.252

xSLG.341

Hard Hit%28.7%

Sinker 321 thrown

Usage21.3%

K%3.9%

Whiff%11.0%

Putaway%8.3%

xwOBA.425

xSLG.572

Hard Hit%31.8%

Platoon Splits - 2026

Split	PA	xAVG	xwOBA	xSLG	K%	BB%	HR
vs LHB	57	.284	.321	.345	29.8%	10.5%	0
vs RHB	44	.329	.367	.520	15.9%	2.3%	2
Home	39	.233	.293	.336	30.8%	12.8%	1
Road	62	.346	.371	.477	19.4%	3.2%	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
May 24	@ SD	H	1.0	0	0	1	0	13	4	0.0%	+144	7.5	2.9	-	-	1.7
May 21	@ LAA	SV	1.0	1	0	0	1	11	3	9.1%	+100	8.5	4.1	-	-	3.7
May 20	@ LAA	-	1.0	0	0	0	1	11	3	9.1%	-125	9.5	5.0	-	-	4.3
May 16	vs SF	-	2.0	2	0	0	2	25	8	8.0%	-136	9.5	5.2	-	-	7.3
May 14	vs STL	-	1.0	0	0	0	2	15	3	13.3%	-122	10.0	5.2	-	-	6.3
May 12	vs STL	-	1.0	0	0	0	1	12	3	8.3%	-156	10.0	5.8	-	-	4.3
May 9	@ BAL	-	1.0	3	2	0	1	19	6	5.3%	+105	9.5	4.4	-	-	-1.6
May 5	@ PHI	-	0.2	3	4	1	1	22	6	4.5%	+179	9.5	3.3	-	-	-6.9
May 3	vs CLE	-	1.0	0	0	0	1	10	3	10.0%	+113	9.0	4.0	-	-	4.3
Apr 29	vs KC	SV	0.1	0	0	1	1	11	2	9.1%	-120	9.5	5.0	-	-	2.2
Apr 28	vs KC	-	1.0	0	0	0	1	9	3	11.1%	-108	9.5	4.7	-	-	4.3
Apr 25	@ TEX	-	1.0	0	0	0	1	13	3	7.7%	+109	8.0	3.7	-	-	4.3
Apr 22	@ SEA	-	1.0	2	1	0	1	18	5	5.6%	+153	7.5	2.8	-	-	1.1
Apr 20	@ SEA	H	1.0	2	0	0	1	19	5	5.3%	+124	8.0	3.4	-	-	3.1
Apr 18	vs CWS	-	0.2	0	0	2	1	12	4	8.3%	-163	9.0	5.3	-	-	2.3
Apr 15	vs TEX	-	0.2	2	3	1	1	22	5	4.5%	-117	10.0	5.2	-	-	-4.3
Apr 14	vs TEX	SV	1.0	0	0	0	2	13	3	15.4%	+109	8.5	3.9	-	-	6.3
Apr 11	@ NYM	-	1.0	0	0	0	3	14	3	21.4%	+139	8.0	3.2	-	-	8.3
Apr 10	@ NYM	-	1.0	1	0	0	1	12	4	8.3%	+124	8.0	3.4	-	-	3.7
Apr 7	@ NYY	L	0.2	5	4	0	0	28	7	0.0%	+199	8.0	2.6	-	-	-9.5