Mark Williamson

Position: Pitcher

Bats: Right • Throws: Right

6-0, 155lb (183cm, 70kg)

Born: July 21, 1959 in Corpus Christi, TX us

Draft: Drafted by the Kansas City Royals in the 12th round of the 1981 MLB June Amateur Draft from San Diego State University (San Diego, CA) and the San Diego Padres in the 4th round of the 1982 MLB June Amateur Draft from San Diego State University (San Diego, CA).

High School: Mount Miguel HS (Spring Valley, CA)

Schools: Grossmont College (El Cajon, CA), San Diego State University (San Diego, CA)

Debut: April 8, 1987 (Age 27-261d, 15,289th in major league history)
vs. TEX 1.2 IP, 2 H, 0 SO, 2 BB, 2 ER, L

Last Game: August 4, 1994 (Age 35-014d)
vs. MIL 6.2 IP, 9 H, 2 SO, 1 BB, 4 ER, L

Rookie Status: Exceeded rookie limits during 1987 season

Agents: Ted Updike

Full Name: Mark Alan Williamson

View Player Info from the B-R Bullpen

Become a Stathead & surf this site ad-free.

SUMMARY

Career

WAR

6.6

ERA

3.86

365

689.2

397

WHIP

1.344

Hit location and pitches data is shown only for seasons after 1988 (completeness summary of pitch data and hit data).

Summary of 62 Home Runs Allowed

(For more accurate walk-off HR totals, see the Batting Event Finder)

0 leading off, 1 walk-off, 7 tying, 12 go ahead

1 Tm
BAL	62

Platoon
vs RHB	36
vs LHB	26

Home/Road
Home	32
Away	30

Outs
1	27
2	18
0	17

13 Opps
SEA	8
OAK	7
TOR	7
DET	6
KCR	5
TEX	5
CLE	5
NYY	5
BOS	4
MIN	3
CAL	3
MIL	2
CHW	2

51 Batters
Ken Phelps	3
Mark McGwire	3
Danny Tartabull	2
Albert Belle	2
Dwight Evans	2
Kelly Gruber	2
Alvin Davis	2
Pete Incaviglia	2
Cory Snyder	2
Mickey Tettleton	1
Kirk Gibson	1
Jesse Barfield	1
Iván Calderón	1
Walt Weiss	1
Jim Leyritz	1
Brian McRae	1
Dave Valle	1
Devon White	1
Kurt Stillwell	1
Mel Hall	1
Larry Sheets	1
Wade Boggs	1
Bo Jackson	1
Pat Meares	1
George Bell	1
Nick Esasky	1
Ron Kittle	1
Jay Buhner	1
Dave Parker	1
Joe Carter	1
Tony Phillips	1
Mike Kingery	1
Julio Franco	1
John Olerud	1
Greg Vaughn	1
Cecil Fielder	1
Paul Sorrento	1
Darrell Evans	1
Don Mattingly	1
Dave Gallagher	1
Dave Henderson	1
Pat Kelly	1
Mike Heath	1
José Valentín	1
Paul O'Neill	1
Chili Davis	1
Juan González	1
Mike Macfarlane	1
Larry Parrish	1
Kent Hrbek	1
Greg Briley	1

14 Parks
Memor. Stad (BAL)	23
Camden Yards (BAL)	9
RingCentral Col (OAK)	5
Tiger Stad (DET)	5
ClevelandStd (CLE)	3
KauffmanStad (KAN)	3
Arlington St (ARL)	3
Kingdome (SEA)	3
Fenway Pk (BOS)	2
Exhibit Stad (TOR)	2
Yankee Stad (NYC)	1
County Stad (MIL)	1
Progressive (CLE)	1
Metrodome (MIN)	1

Where Hit
7	26
9	11
8	6
89	6
78	6

General field locations
when available.

Pitches
Unk	12
3	11
1	11
2	9
4	9
6	5
5	3
7+	2

Pitches in PA
when available.

Game Totals
1·HR gms	50
2·HR gms	6

Gms w/ this # = 0
are not shown.

Bases
---	32
1--	13
12-	6
-2-	5
--3	4
1-3	2

100 Runs
RISP	17
0 on	32
1 on	22
2 on	8
Any on	30

Inning
1	4
2	1
3	3
4	7
5	5
6	4
7	12
8	14
9	10
Extra	2

1-3	8
4-6	16
7-end	38

RelScore
+4..	11
+3	3
+2	9
+1	9
Tied	9
-1	7
-2	4
-3	4
-4..	6

Ahead	32
Tied	9
Behind	21

Before event,
for batter

Count
Unk	12
0-0	11
1-0	8
3-2	6
1-1	6
1-2	5
2-1	5
2-0	3
0-2	2
2-2	2
3-1	1
0-1	1

Pitch data mostly complete since 1988.

DefPos
DH	12
LF	11
RF	10
1B	7
CF	5
C	4
SS	4
3B	4
PH	2
2B	2
PH/DH	1

OrderPos
4th	19
7th	9
5th	9
3rd	7
9th	5
6th	5
1st	4
2nd	3
8th	1

Leverage
High Lev	15
Medium Lev	15
Low Lev	32

Play By Play

WE and WPA Explanation

Play By Play
1987	#car	#yr	#gm	Date	Batter	@Bat			Score	Inn	Out	RoB	Pit(cnt)	R	BOP	Pos	bWPA	bWE	Notes	Play Description
1	1	1	1	1987-04-19 (2)	Mel Hall	CLE	@	BAL	ahead 7-5	t 9	1	---		1	5	7	5%	96%		Home Run
2	2	2	1	1987-04-22	Pete Incaviglia	TEX		BAL	behind 1-2	b 9	1	---		1	4	7	46%	59%		Home Run (Deep CF)
3	3	3	1	1987-05-02	Iván Calderón	CHW	@	BAL	ahead 5-3	t 8	1	---		1	5	9	7%	92%		Home Run (Deep LF)
4	4	4	1	1987-05-29	Mike Kingery	SEA	@	BAL	ahead 4-3	t 7	2	12-		3	6	PH	25%	93%		Home Run; D. Valle Scores; J. Presley Scores
5	5	5	1	1987-06-05	Jesse Barfield	TOR		BAL	ahead 5-1	b 6	1	---		1	3	9	3%	97%		Home Run (Deep LF)
6	6	6	1	1987-06-11	Kelly Gruber	TOR	@	BAL	ahead 7-6	t 9	1	---		1	2	5	10%	91%		Home Run
7	7	7	1	1987-06-30	Dwight Evans	BOS		BAL	ahead 1-0	b 1	2	1-3		3	6	9	19%	84%		Home Run (Fly Ball to Deep LF); W. Boggs Scores; D. Baylor Scores
8	8	8	1	1987-07-30	Cory Snyder	CLE		BAL	tied 4-4	b 10	1	1--		2	7	9	36%	100%	Walk-Off	Home Run; C. Castillo Scores
9	9	9	1	1987-08-25	Mickey Tettleton	OAK		BAL	ahead 6-4	b 5	2	--3		2	7	2	12%	92%		Home Run (Deep LF); M. Davis Scores
10	10	10	1	1987-08-31	Ken Phelps	SEA	@	BAL	behind 1-4	t 8	2	---		1	4	DH	4%	8%		Home Run
11	11	11	2	1987-08-31	Dave Valle	SEA	@	BAL	behind 2-4	t 9	1	---		1	7	2	6%	9%		Home Run
12	12	12	1	1987-10-01	Kirk Gibson	DET		BAL	ahead 7-5	b 8	2	-2-		2	3	7	5%	99%		Home Run (Deep RF); J. Walewander Scores
1988	#car	#yr	#gm	Date	Batter	@Bat			Score	Inn	Out	RoB	Pit(cnt)	R	BOP	Pos	bWPA	bWE	Notes	Play Description
13	13	1	1	1988-04-09	Cory Snyder	CLE		BAL	ahead 5-0	b 3	0	-2-	3,(0-2) CFX	2	7	9	3%	98%		Home Run (Deep CF); B. Jacoby Scores
14	14	2	1	1988-05-04	Kent Hrbek	MIN	@	BAL	tied 0-0	t 4	2	---	1,(0-0) X	1	4	3	14%	59%		Home Run (Deep RF)
15	15	3	1	1988-05-11	Pete Incaviglia	TEX		BAL	ahead 1-0	b 1	1	-2-	1,(0-0) X	2	4	7	13%	80%		Home Run (Deep LF); R. Sierra Scores
16	16	4	2	1988-05-11	Larry Parrish	TEX		BAL	ahead 3-0	b 1	2	---	1,(0-0) X	1	6	DH	6%	85%		Home Run (Deep LF)
17	17	5	1	1988-05-15	Mark McGwire	OAK	@	BAL	ahead 2-1	t 4	0	---	3,(1-1) CBX	1	4	3	11%	74%		Home Run (Deep LF)
18	18	6	2	1988-05-15	Walt Weiss	OAK	@	BAL	ahead 3-1	t 5	1	---	6,(2-2) FBBCFX	1	9	6	9%	84%		Home Run (Deep RF)
19	19	7	1	1988-05-20	Ken Phelps	SEA	@	BAL	behind 0-2	t 7	0	1--	3,(1-1) BFX	2	4	DH	27%	50%		Home Run (Deep CF); A. Davis Scores
20	20	8	1	1988-05-25	Dave Parker	OAK		BAL	tied 0-0	b 1	2	1--	3,(1-1) BCX	2	4	DH	19%	71%		Home Run (Deep RF); J. Canseco Scores
21	21	9	2	1988-05-25	Dave Henderson	OAK		BAL	ahead 4-1	b 6	1	--3	4,(1-2) BFFX	2	7	8	4%	98%		Home Run (Deep CF); M. McGwire Scores
22	22	10	1	1988-09-04	Alvin Davis	SEA		BAL	behind 0-4	b 4	1	---	6,(3-2) .CBBFBX	1	5	PH/DH	7%	19%		Home Run (CF-RF)
23	23	11	1	1988-09-05	Dwight Evans	BOS	@	BAL	ahead 2-1	t 9	0	1--	3,(2-0) BB1X	2	3	9	10%	97%		Home Run (Fly Ball to Deep LF); M. Barrett Scores
24	24	12	1	1988-09-25 (1)	Darrell Evans	DET	@	BAL	behind 0-1	t 4	1	---	1,(0-0) X	1	5	DH	13%	47%		Home Run (Fly Ball to Deep RF)
25	25	13	1	1988-09-29	Ken Phelps	NYY	@	BAL	tied 0-0	t 4	2	1--	3,(1-1) SBX	2	5	DH	24%	71%		Home Run (Fly Ball to Deep LF Line); J. Clark Scores
26	26	14	1	1988-10-02	George Bell	TOR		BAL	ahead 7-0	b 4	2	1--	3,(1-1) CBX	2	4	7	1%	99%		Home Run; R. Leach Scores
1989	#car	#yr	#gm	Date	Batter	@Bat			Score	Inn	Out	RoB	Pit(cnt)	R	BOP	Pos	bWPA	bWE	Notes	Play Description
27	27	1	1	1989-04-27	Mark McGwire	OAK		BAL	ahead 4-3	b 7	1	--3	2,(1-0) BX	2	4	3	10%	94%		Home Run (Fly Ball to Deep LF); D. Henderson Scores
28	28	2	1	1989-05-14	Ron Kittle	CHW	@	BAL	behind 4-5	t 7	1	1--	3,(1-1) BSX	2	3	3	38%	68%		Home Run (Fly Ball to Deep LF-CF); D. Gallagher Scores
29	29	3	1	1989-06-04	Mike Heath	DET		BAL	behind 1-5	b 8	2	12-	2,(1-0) BX	3	8	5	15%	19%		Home Run (Line Drive to Deep LF-CF); D. Bergman Scores; C. Lemon Scores
30	30	4	1	1989-08-02	Nick Esasky	BOS		BAL	behind 6-9	b 9	2	1--	2,(1-0) BX	2	5	3	3%	5%		Home Run (Fly Ball to Deep LF-CF); W. Boggs Scores
1990	#car	#yr	#gm	Date	Batter	@Bat			Score	Inn	Out	RoB	Pit(cnt)	R	BOP	Pos	bWPA	bWE	Notes	Play Description
31	31	1	1	1990-05-04	Greg Briley	SEA		BAL	behind 4-6	b 7	1	1-3	3,(2-0) BBX	3	2	7	46%	78%		Home Run (Fly Ball to Deep RF); M. Brumley Scores; H. Reynolds Scores/unER
32	32	2	2	1990-05-04	Alvin Davis	SEA		BAL	ahead 7-6	b 7	1	---	6,(3-2) BCBFBX	1	3	3	11%	88%		Home Run (Fly Ball to Deep RF)
33	33	3	1	1990-06-16	Wade Boggs	BOS	@	BAL	ahead 5-2	t 9	0	---	4,(2-1) CBBX	1	1	5	2%	99%		Home Run (Fly Ball to Deep CF)
34	34	4	1	1990-07-25	Larry Sheets	DET		BAL	tied 2-2	b 8	1	-2-	6,(3-2) 1BC.BBCX	2	4	DH	28%	94%		Home Run (Fly Ball to Deep CF-RF); T. Phillips Scores
35	35	5	1	1990-07-28 (1)	Kurt Stillwell	KCR		BAL	behind 8-9	b 7	2	1--	3,(2-0) BBX	2	9	6	47%	77%		Home Run (Fly Ball to Deep CF-RF); M. Macfarlane Scores/Team unER; K. Stillwell Scores/Team unER
36	36	6	1	1990-07-30	Kelly Gruber	TOR	@	BAL	ahead 7-1	t 6	1	--3	2,(1-0) BX	2	3	5	1%	99%		Home Run (Fly Ball to Deep LF-CF); M. Wilson Scores
37	37	7	1	1990-08-01	John Olerud	TOR	@	BAL	ahead 6-4	t 8	1	---	3,(0-2) SFX	1	6	DH	7%	93%		Home Run (Fly Ball to Deep CF)
38	38	8	1	1990-08-04	Danny Tartabull	KCR	@	BAL	ahead 4-0	t 3	0	---	5,(1-2) FCBFX	1	4	9	5%	92%		Home Run (Fly Ball to Deep LF)
1991	#car	#yr	#gm	Date	Batter	@Bat			Score	Inn	Out	RoB	Pit(cnt)	R	BOP	Pos	bWPA	bWE	Notes	Play Description
39	39	1	1	1991-04-30	Jay Buhner	SEA	@	BAL	ahead 5-3	t 9	0	---	4,(2-1) .BSBX	1	7	9	4%	97%		Home Run (Fly Ball to Deep LF); J. Buhner Scores
40	40	2	1	1991-05-08	Mark McGwire	OAK		BAL	ahead 4-0	b 5	0	12-	1,(0-0) X	3	4	3	3%	99%		Home Run (Fly Ball to Deep LF); D. Henderson Scores; J. Canseco Scores; M. McGwire Scores
41	41	3	1	1991-05-25	Don Mattingly	NYY	@	BAL	tied 3-3	t 8	1	---	2,(0-1) FX	1	3	DH	28%	73%		Home Run (Fly Ball to Deep CF-RF); D. Mattingly Scores
42	42	4	1	1991-06-12	Danny Tartabull	KCR	@	BAL	tied 8-8	t 10	0	---	1,(0-0) X	1	4	9	34%	84%		Home Run (Fly Ball to Deep LF); D. Tartabull Scores
43	43	5	1	1991-06-23 (1)	Mike Macfarlane	KCR		BAL	ahead 5-4	b 8	1	---	2,(1-0) BX	1	7	2	8%	93%		Home Run (Fly Ball to Deep LF); M. Macfarlane Scores
44	44	6	1	1991-07-25	Dave Gallagher	CAL	@	BAL	behind 3-8	t 9	1	---	2,(1-0) BX	1	7	8	0%	1%		Home Run (Fly Ball to Deep LF Line); D. Gallagher Scores
45	45	7	1	1991-08-13 (2)	Juan González	TEX	@	BAL	behind 5-8	t 7	0	1--	1,(0-0) .X	2	5	8	16%	30%		Home Run (Line Drive to Deep LF Line); K. Reimer Scores; J. González Scores
46	46	8	1	1991-09-01	Paul Sorrento	MIN		BAL	ahead 12-3	b 7	1	-2-	4,(2-1) .BFBX	2	1	PH	0%	100%		Home Run (Fly Ball to Deep LF-CF); G. Larkin Scores; P. Sorrento Scores
47	47	9	1	1991-09-21	Albert Belle	CLE		BAL	ahead 6-1	b 7	0	12-	4,(1-2) CFBX	3	4	7	1%	100%		Home Run (Fly Ball to Deep LF); J. Browne Scores; C. Baerga Scores; A. Belle Scores
1992	#car	#yr	#gm	Date	Batter	@Bat			Score	Inn	Out	RoB	Pit(cnt)	R	BOP	Pos	bWPA	bWE	Notes	Play Description
48	48	1	1	1992-09-29	Cecil Fielder	DET		BAL	behind 1-7	b 9	0	---	1,(0-0) .X	1	4	DH	0%	1%		Home Run (Line Drive to Deep LF); C. Fielder Scores
1993	#car	#yr	#gm	Date	Batter	@Bat			Score	Inn	Out	RoB	Pit(cnt)	R	BOP	Pos	bWPA	bWE	Notes	Play Description
49	49	1	1	1993-04-23	Brian McRae	KCR		BAL	ahead 4-0	b 2	1	12-	11,(3-2) .CBCFFBBFFFX	3	2	8	8%	96%		Home Run (Fly Ball to Deep RF Line); G. Gagne Scores; K. Miller Scores
50	50	2	1	1993-06-26	Paul O'Neill	NYY	@	BAL	behind 6-9	t 7	1	1--	1,(0-0) X	2	7	7	15%	27%		Home Run (Line Drive to Deep RF); M. Gallego Scores
51	51	3	1	1993-08-04	Greg Vaughn	MIL	@	BAL	behind 1-8	t 8	2	---	9,(3-2) BCSBFFBFX	1	4	7	0%	0%		Home Run (Fly Ball to Deep LF)
52	52	4	1	1993-08-11	Tony Phillips	DET		BAL	ahead 13-2	b 7	0	---	2,(1-0) BX	1	1	4	0%	100%		Home Run (Fly Ball to Deep RF)
53	53	5	1	1993-08-21	Julio Franco	TEX	@	BAL	behind 3-4	t 8	0	---	4,(2-1) CBBX	1	5	DH	24%	50%		Home Run (Fly Ball to Deep LF-CF)
1994	#car	#yr	#gm	Date	Batter	@Bat			Score	Inn	Out	RoB	Pit(cnt)	R	BOP	Pos	bWPA	bWE	Notes	Play Description
54	54	1	1	1994-04-21	Bo Jackson	CAL	@	BAL	ahead 3-1	t 5	1	12-	4,(2-1) .BBCX	3	5	7	16%	91%		Home Run (Fly Ball to Deep CF-RF); T. Salmon Scores; C. Davis Scores
55	55	2	1	1994-05-22	Jim Leyritz	NYY		BAL	behind 3-4	b 8	2	---	2,(1-0) .BX	1	6	2	32%	53%		Home Run (Fly Ball to Deep CF-RF)
56	56	3	1	1994-06-16	Pat Kelly	NYY	@	BAL	ahead 5-0	t 8	2	---	4,(1-2) FSBX	1	9	4	1%	99%		Home Run (Fly Ball to Deep LF)
57	57	4	1	1994-06-19	Pat Meares	MIN	@	BAL	ahead 6-4	t 8	2	---	5,(2-2) SSBBX	1	9	6	8%	90%		Home Run (Line Drive to Deep LF)
58	58	5	1	1994-06-30	Albert Belle	CLE		BAL	tied 2-2	b 8	1	1--	1,(0-0) .X	2	4	7	31%	93%		Home Run (Fly Ball to Deep LF); C. Baerga Scores
59	59	6	1	1994-07-03	Chili Davis	CAL	@	BAL	behind 2-7	t 6	0	---	5,(3-1) FBBBX	1	4	DH	4%	10%		Home Run (Fly Ball to Deep LF)
60	60	7	1	1994-07-30	Joe Carter	TOR	@	BAL	tied 0-0	t 4	0	---	1,(0-0) X	1	4	9	11%	61%		Home Run (Fly Ball to Deep LF)
61	61	8	2	1994-07-30	Devon White	TOR	@	BAL	behind 1-2	t 5	2	---	4,(1-2) CSBX	1	1	8	13%	44%		Home Run (Fly Ball to Deep RF)
62	62	9	1	1994-08-04	José Valentín	MIL		BAL	behind 0-2	b 3	0	1--	6,(3-2) BBSB>FX	2	9	6	17%	56%		Home Run (Fly Ball to Deep LF); J. Cirillo Scores