Standard Pitching

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Show Non‑Major
Regular Season
Standard Pitching Table
Season Age Team Lg WAR W L W-L% ERA G GS GF CG SHO SV IP H R ER HR BB IBB SO HBP BK WP BF ERA+ FIP WHIP H9 HR9 BB9 SO9 SO/BB Awards
1987 27 BAL AL 1.7 8 9 .471 4.03 61 2 36 0 0 3 125.0 122 59 56 12 41 15 73 3 0 3 520 109 4.01 1.304 8.8 0.9 3.0 5.3 1.78
1988 28 BAL AL -0.1 5 8 .385 4.90 37 10 11 2 0 2 117.2 125 70 64 14 40 8 69 2 3 5 507 80 4.21 1.402 9.6 1.1 3.1 5.3 1.73
1989 29 BAL AL 2.3 10 5 .667 2.93 65 0 38 0 0 9 107.1 105 35 35 4 30 9 55 2 0 0 445 129 3.12 1.258 8.8 0.3 2.5 4.6 1.83
1990 30 BAL AL 2.2 8 2 .800 2.21 49 0 15 0 0 1 85.1 65 25 21 8 28 2 60 0 0 1 343 172 3.60 1.090 6.9 0.8 3.0 6.3 2.14
1991 31 BAL AL -0.3 5 5 .500 4.48 65 0 21 0 0 4 80.1 87 42 40 9 35 7 53 0 0 7 357 89 4.30 1.519 9.7 1.0 3.9 5.9 1.51
1992 32 BAL AL 0.7 0 0 0.96 12 0 5 0 0 1 18.2 16 3 2 1 10 1 14 0 0 1 78 422 3.59 1.393 7.7 0.5 4.8 6.8 1.40
1993 33 BAL AL -0.6 7 5 .583 4.91 48 1 12 0 0 0 88.0 106 54 48 5 25 8 45 0 0 2 386 91 3.56 1.489 10.8 0.5 2.6 4.6 1.80
1994 34 BAL AL 0.8 3 1 .750 4.01 28 2 4 0 0 1 67.1 75 33 30 9 17 1 28 2 0 0 291 125 4.88 1.366 10.0 1.2 2.3 3.7 1.65
8 Yrs 6.6 46 35 .568 3.86 365 15 142 2 0 21 689.2 701 321 296 62 226 51 397 9 3 19 2927 108 3.90 1.344 9.1 0.8 2.9 5.2 1.76
162 Game Avg 1.2 8 6 .568 3.86 65 3 25 0 0 4 123 125 57 53 11 40 9 71 2 1 3 524 108 3.90 1.344 9.1 0.8 2.9 5.2 1.76

Value Pitching

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Value Pitching Table
Season Age Team Lg IP G GS R RA9 RA9opp RA9def RA9role PPFp RA9avg RAA WAA gmLI WAAadj WAR RAR waaWL% 162WL% Awards
1987 27 BAL AL 125.0 61 2 59 4.25 4.98 -0.06 -0.30 98 4.64 6 0.5 1.43 -0.1 1.7 18 .509 .503
1988 28 BAL AL 117.2 37 10 70 5.35 4.55 -0.12 -0.01 98 4.55 -10 -1.1 1.29 -0.2 -0.1 0 .470 .493
1989 29 BAL AL 107.1 65 0 35 2.93 4.36 0.12 -0.34 97 3.77 10 1.0 1.84 0.2 2.3 20 .516 .506
1990 30 BAL AL 85.1 49 0 25 2.64 4.38 0.22 -0.34 96 3.66 10 1.1 1.67 0.2 2.2 18 .523 .507
1991 31 BAL AL 80.1 65 0 42 4.71 4.51 0.24 -0.35 98 3.83 -8 -0.8 1.33 -0.3 -0.3 0 .488 .495
1992 32 BAL AL 18.2 12 0 3 1.45 4.63 0.08 -0.37 101 4.24 6 0.7 0.85 -0.1 0.7 8 .554 .504
1993 33 BAL AL 88.0 48 1 54 5.52 4.82 0.50 -0.30 102 4.11 -14 -1.3 1.29 -0.3 -0.6 -4 .473 .492
1994 34 BAL AL 67.1 28 2 33 4.41 5.27 0.57 -0.25 104 4.62 2 0.1 1.07 -0.1 0.8 10 .505 .501
8 Yrs 689.2 365 15 321 4.19 4.68 0.17 -0.26 99 4.19 0 0.3 1.45 -0.6 6.6 70 .501 .500
162 Game Avg 123 65 3 57 4.19 4.68 0.17 -0.26 99 4.19 0 0.0 1.45 -0.1 1.2 13 .501 .500

Batting Against -- Pitching *

Win Probability *

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Starting Pitching *

  • Data only available back to 1901

Reliever Pitching *

  • Data only available back to 1901

Ratio Pitching *

Pitch Summary -- Pitching *

Baserunning & Situational Stats *

Cumulative Pitching

Neutralized Pitching

Advanced Pitching

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Regular Season
Advanced Pitching Table
Batting Against Pitching Ratios Batted Ball Win Probability
Season Age Team Lg IP BA OBP SLG OPS BAbip HR% K% BB% LD% GB% FB% GB/FB WPA cWPA RE24 Awards
1987 27 BAL AL 125.0 .261 .322 .387 .709 .285 2.3 14.0 7.9 -1.8 -0.9% 9.65
1988 28 BAL AL 117.2 .272 .332 .431 .763 .294 2.8 13.6 7.9 21.7 37.4 31.6 0.65 -1.9 -0.1% -21.16
1989 29 BAL AL 107.1 .261 .313 .345 .658 .291 0.9 12.4 6.7 18.4 42.5 24.6 0.78 0.3 -4.1% 5.18
1990 30 BAL AL 85.1 .215 .276 .351 .627 .237 2.3 17.5 8.2 15.3 49.4 25.5 1.06 0.5 -0.8% 9.40
1991 31 BAL AL 80.1 .275 .343 .424 .767 .301 2.5 14.8 9.8 24.5 44.2 22.3 0.83 -0.4 0.0% -9.06
1992 32 BAL AL 18.2 .239 .338 .328 .666 .288 1.3 17.9 12.8 29.6 35.2 27.8 0.56 -0.3 -0.2% -1.04
1993 33 BAL AL 88.0 .304 .345 .418 .763 .331 1.3 11.7 6.5 23.4 47.8 21.8 0.98 0.2 -2.0% -5.24
1994 34 BAL AL 67.1 .278 .323 .448 .771 .281 3.1 9.6 5.8 21.3 44.3 23.4 0.79 0.2 0.1% 5.68
8 Yrs 689.2 .266 .323 .397 .721 .290 2.1 13.6 7.7 21.1 43.5 25.3 0.81 -3.2 -7.9% -6.58
MLB Average .259 .326 .392 .718 .288 2.2 15.1 8.6 20.4 43.4 25.4 0.81

* - Disclaimer & Completeness Note

Appearances on Leaderboards, Awards, and Honors

Hall of Fame Statistics

Frequently Asked Questions

How old is Mark Williamson?

Mark Williamson is 65 years old.

When was Mark Williamson born?

Mark Williamson was born on July 21, 1959.

Where was Mark Williamson born?

Mark Williamson was born in Corpus Christi, TX.

How tall is Mark Williamson?

Mark Williamson is 6-0 (183 cm) tall.

How much did Mark Williamson weigh when playing?

Mark Williamson weighed 155 lbs (70 kg) when playing.

How many seasons did Mark Williamson play?

Mark Williamson played 8 seasons.

Is Mark Williamson in the Hall of Fame?

Mark Williamson has not been elected into the Hall of Fame.

When was Mark Williamson drafted?

Mark Williamson was 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).

What position did Mark Williamson play?

Mark Williamson was a Pitcher.

How many strikeouts did Mark Williamson have?

Mark Williamson had 397 strikeouts over his career.

How many teams has Mark Williamson played for?

Mark Williamson played for 1 team, the Baltimore Orioles.

When did Mark Williamson retire?

Mark Williamson last played in 1994.

Other Resources & Links

More Williamson Pages

Mark Williamson Overview

Minor Lg Stats

Pitching Splits

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Batting Finders & Advanced Stats

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More Mark Williamson Pages at Baseball Reference