Bill Slayback

Pitcher · Career Stats, Bio & Records (1972-1974)

Bill Slayback was a pitcher who played in Major League Baseball from 1972 to 1974 for the Detroit Tigers, a span of 3 seasons. Across 42 career appearances, he went 6-9 with a 3.84 ERA and 89 strikeouts. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 1880.4.

W (Wins):
Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
ERA (Earned Run Average):
Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
SO (Strikeouts):
For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
WHIP (Walks and Hits per Inning Pitched):
Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.

Data updated

W–L 6–9
ERA 3.84
WHIP 1.35
SO 89
Pitcher PIV 1880.4
Position
Pitcher
Bats / Throws
R / R
Height / Weight
6'4" / 200 lb
Born
2/21/1948 in Hollywood, CA, USA
Died
3/25/2015 in Los Angeles, CA, USA
MLB Debut
1972-06-26
Last Game
1974-10-02

Full name: William Grover Slayback

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Career Pitching Statistics

Bill Slayback — Career Pitching Statistics
W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
6 9 42 17 3 1 0 138.1 136 59 5 51 89 3.84 1880.4

Career ERA 3.84 vs. league average 3.55 across their career seasons — 8.1% worse than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Bill Slayback — Season-by-Season Pitching
Year Team Lg W L G GS CG SHO SV IP H ER BB SO ERA Lg ERA Pitcher PIV
1972 DET AL 5 6 23 13 3 1 0 81.2 74 29 25 65 3.20 3.26 (+2%) 1795.7
1973 DET AL 0 0 3 0 0 0 0 2.0 5 1 0 1 4.50 — 0.0
1974 DET AL 1 3 16 4 0 0 0 54.2 57 29 26 23 4.77 3.63 (-32%) 84.7
Career · 3 seasons 6 9 42 17 3 1 0 138.1 136 59 51 89 3.84 — 1,880

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Career Batting Statistics

Bill Slayback — Career Batting Statistics
G AB R H 2B 3B HR RBI SB BB SO AVG OBP SLG OPS PIV
42 23 1 4 0 0 0 0 0 0 6 .174 .174 .174 .348 0

Career AVG .174 vs. league average .253 across their career seasons — 31.2% below league average.

Career OBP .174 vs. league average .320 across their career seasons — 45.7% below league average.

Career SLG .174 vs. league average .367 across their career seasons — 52.7% below league average.

Career OPS .348 vs. league average .688 across their career seasons — 49.4% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Bill Slayback — Season-by-Season Batting
Year Team Lg G AB R H 2B 3B HR RBI SB BB SO AVG Lg AVG Lg OBP Lg SLG Lg OPS PIV
1972 DET AL 23 23 1 4 0 0 0 0 0 0 6 .174 — — — — 0.0
1973 DET AL 3 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
1974 DET AL 16 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
Career · 3 seasons 42 23 1 4 0 0 0 0 0 0 6 .174 — — — — 0

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Game Log & Splits

View full game log (84 games) →

Per-game data from Retrosheet (regular season, through 2025).

Batting — Home / Away

Bill Slayback — Batting — Home / Away
SplitGABRHHRRBIAVG
Home21130300.231
Away21101100.100

Pitching — Home / Away

Bill Slayback — Pitching — Home / Away
SplitGIPHERBBSOERA
Home2174.0702725493.28
Away2164.1663226404.48

Last 10 Games — Pitching

Bill Slayback — Last 10 Games — Pitching
DateTmOppDecIPHRERBBSOHR
1974-10-02 DETBAL — 2.0100100
1974-09-27 DETBOS — 1.0000000
1974-09-10 DETCLE — 2.0422120
1974-08-11 DETTEX — 2.0432210
1974-08-04 DETBAL — 6.2633420
1974-07-25 DETBOS — 0.0233200
1974-07-20 DETMIN — 2.2243310
1974-07-17 DETCHW — 4.2311020
1974-07-10 DETMIN — 0.1000000
1974-07-06 DETCHW — 4.1200220

Fielding Statistics

Career Fielding Totals by Position

Bill Slayback — Career Fielding Totals by Position
Position G GS PO A E DP
P 42 17 6 23 3 0

Season-by-Season Fielding

Bill Slayback — Season-by-Season Fielding
Year Team Pos G GS PO A E DP
1972 DET P 23 13 5 15 2 0
1973 DET P 3 0 0 0 0 0
1974 DET P 16 4 1 8 1 0

Career Games by Position

Position Diamond

Circle size = games played at each position.

Bill Slayback — Career Games by Position
Position Games
Pitcher 42

College History

Bill Slayback — College History
School Name City State Years Attended
Glendale Community College Glendale CA 1968

Bill Slayback: the record in brief

According to the bio, Bill Slayback debuted on June 26, 1972 and played a final game on October 2, 1974. All of the seasons listed were played for the Detroit Tigers. Slayback is listed as a pitcher at 6'4" and 200 pounds. Slayback both batted and threw right-handed, per the bio block. The recorded birth is February 21, 1948, in Hollywood, CA, USA. Slayback's death is recorded on March 25, 2015, in Los Angeles, CA, USA. Bill Slayback was the playing name; the full given name is William Grover.

Slayback went 6-9 with a 3.84 ERA in 42 games, 17 of them starts. Also on Slayback's record: 89 strikeouts. The league ERA over Slayback's seasons was 3.55, so the 3.84 figure ran 8.1% worse than average. The best win total was 5, in 1972. Among the heaviest workloads, the lowest ERA was 3.20 in 1972, when the league's was 3.26.

Frequently Asked Questions about Bill Slayback

What years did Bill Slayback play?
Bill Slayback played in Major League Baseball from 1972 to 1974.
Was Bill Slayback a pitcher?
Yes. Bill Slayback pitched in the major leagues, recording 6 wins and 89 strikeouts.
How many home runs did Bill Slayback hit?
Bill Slayback hit 0 career home runs with 4 hits.
What was Bill Slayback's career batting average?
Bill Slayback batted .174 over his career, with 4 hits in 23 at bats.
What was Bill Slayback's career ERA?
Bill Slayback finished with a 3.84 career ERA, going 6-9 with 89 strikeouts.
How many strikeouts did Bill Slayback have?
Bill Slayback recorded 89 career strikeouts.