Ken Dayley

Pitcher · Career Stats, Bio & Records (1982-1993)

W–L 33–45
ERA 3.64
WHIP 1.38
SO 406
Pitcher PIV 6294.4
Position
Pitcher
Bats / Throws
L / L
Height / Weight
6'0" / 171 lb
Born
2/25/1959 in Jerome, ID, USA
MLB Debut
1982-05-13
Last Game
1993-04-14

Full name: Kenneth Grant Dayley

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Career Pitching Statistics

W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
33 45 385 33 0 0 39 573.7 564 232 42 225 406 3.64 6294.4

Career ERA 3.64 vs. league average 3.92 across their career seasons — 7.2% better than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Year Team Lg W L G GS CG SHO SV IP H ER BB SO ERA Lg ERA Pitcher PIV
1982 ATL NL 5 6 20 11 0 0 0 71.3 79 36 25 34 4.54 3.86 (-18%) -1055.7
1983 ATL NL 5 8 24 16 0 0 0 104.7 100 50 39 70 4.30 3.87 (-11%) -551.3
1984 ATL NL 0 3 4 4 0 0 0 18.7 28 11 6 10 5.30 3.81 (-39%) -1163.4
1984 SLN NL 0 2 3 2 0 0 0 5.0 16 10 5 0 18.00 — 0.0
1985 SLN NL 4 4 57 0 0 0 11 65.3 65 20 18 62 2.76 3.89 (+29%) 3116.3
1986 SLN NL 0 3 31 0 0 0 5 38.7 42 14 11 33 3.26 3.97 (+18%) 1599.0
1987 SLN NL 9 5 53 0 0 0 4 61.0 52 18 33 63 2.66 4.29 (+38%) 2069.9
1988 SLN NL 2 7 54 0 0 0 5 55.3 48 17 19 38 2.77 3.73 (+26%) 1096.8
1989 SLN NL 4 3 71 0 0 0 12 75.3 63 24 30 40 2.87 3.71 (+23%) 568.1
1990 SLN NL 4 4 58 0 0 0 2 73.3 63 29 30 51 3.56 3.86 (+8%) 614.6
1991 TOR AL 0 0 8 0 0 0 0 4.3 7 3 5 3 6.23 — 0.0
1993 TOR AL 0 0 2 0 0 0 0 0.7 1 0 4 2 0.00 — 0.0
Career · 12 seasons 33 45 385 33 0 0 39 573.2 564 232 225 406 3.64 — 6,294

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

G AB R H 2B 3B HR RBI SB BB SO AVG OBP SLG OPS PIV
388 81 4 17 0 0 0 2 0 7 32 .210 .273 .210 .483 0

Career AVG .210 vs. league average .259 across their career seasons — 18.9% below league average.

Career OBP .273 vs. league average .325 across their career seasons — 16.0% below league average.

Career SLG .210 vs. league average .390 across their career seasons — 46.2% below league average.

Career OPS .483 vs. league average .715 across their career seasons — 32.5% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Year Team Lg G AB R H 2B 3B HR RBI SB BB SO AVG Lg AVG Lg OBP Lg SLG Lg OPS PIV
1982 ATL NL 20 20 1 5 0 0 0 1 0 2 9 .250 — — — — 0.0
1983 ATL NL 25 32 2 7 0 0 0 1 0 4 11 .219 — — — — 0.0
1984 ATL NL 5 4 1 2 0 0 0 0 0 0 2 .500 — — — — 0.0
1984 SLN NL 3 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
1985 SLN NL 57 5 0 2 0 0 0 0 0 0 1 .400 — — — — 0.0
1986 SLN NL 32 5 0 1 0 0 0 0 0 1 2 .200 — — — — 0.0
1987 SLN NL 53 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
1988 SLN NL 54 4 0 0 0 0 0 0 0 0 2 .000 — — — — 0.0
1989 SLN NL 71 5 0 0 0 0 0 0 0 0 2 .000 — — — — 0.0
1990 SLN NL 58 6 0 0 0 0 0 0 0 0 3 .000 — — — — 0.0
1991 TOR AL 8 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
1993 TOR AL 2 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
Career · 12 seasons 388 81 4 17 0 0 0 2 0 7 32 .210 — — — — 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.

Postseason Statistics

Playoff Career Batting

G AB R H 2B 3B HR RBI BB SO AVG
16 3 0 1 0 0 0 0 0 1 .333

Playoff Batting by Year

Year Round Team G AB R H 2B 3B HR RBI BB SO AVG
1987 NLCS SLN 3 0 0 0 0 0 0 0 0 0 .000
1987 WS SLN 4 1 0 0 0 0 0 0 0 1 .000
1985 NLCS SLN 5 2 0 1 0 0 0 0 0 0 .500
1985 WS SLN 4 0 0 0 0 0 0 0 0 0 .000

Playoff Career Pitching

W L G GS SV IP H ER BB SO ERA
1 0 16 0 5 20.7 6 1 6 15 0.44

Playoff Pitching by Year

Year Round Team W L G GS SV IP H ER BB SO ERA
1987 NLCS SLN 0 0 3 0 2 4.0 1 0 2 4 0.00
1987 WS SLN 0 0 4 0 1 4.7 2 1 0 3 1.93
1985 NLCS SLN 0 0 5 0 2 6.0 2 0 1 3 0.00
1985 WS SLN 1 0 4 0 0 6.0 1 0 3 5 0.00

Game Log & Splits

View full game log (773 games) →

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

Batting — Home / Away

SplitGABRHHRRBIAVG
Home200382700.184
Away1884321002.233

Pitching — Home / Away

SplitGIPHERBBSOERA
Home199289.03071191021943.71
Away186284.22571131232123.57

Last 10 Games — Pitching

DateTmOppDecIPHRERBBSOHR
1993-04-14 TORSEA — 0.0120100
1993-04-06 TORSEA — 0.2000320
1991-06-11 TORCLE — 0.0000100
1991-06-07 TORBAL — 0.1122200
1991-06-04 TORNYY — 0.2111100
1991-06-02 TORLAA — 1.0100010
1991-06-01 TORLAA — 1.1200020
1991-05-29 TOROAK — 0.0100000
1991-05-26 TORLAA — 1.0100000
1991-05-24 TORLAA — 0.0000100

Fielding Statistics

Career Fielding Totals by Position

Position G GS PO A E DP
P 385 33 23 63 2 2

Season-by-Season Fielding

Year Team Pos G GS PO A E DP
1982 ATL P 20 11 3 5 0 0
1983 ATL P 24 16 0 7 0 0
1984 ATL P 4 4 1 4 0 0
1984 SLN P 3 2 0 0 0 0
1985 SLN P 57 0 5 15 0 0
1986 SLN P 31 0 1 7 0 0
1987 SLN P 53 0 3 4 0 1
1988 SLN P 54 0 2 7 0 0
1989 SLN P 71 0 2 5 1 0
1990 SLN P 58 0 5 8 1 1
1991 TOR P 8 0 1 1 0 0
1993 TOR P 2 0 0 0 0 0

Career Games by Position

Position Diamond

Circle size = games played at each position.

Position Games
Pitcher 385

Salary History

Year Team League Salary
1993 TOR AL $1,800,000
1992 TOR AL $1,983,333
1990 SLN NL $925,000
1989 SLN NL $925,000
1988 SLN NL $610,000
1987 SLN NL $325,000
1986 SLN NL $300,000
1985 SLN NL $150,000
Total Career Earnings $7,018,333

College History

School Name City State Years Attended
University of Portland Portland OR 1978, 1979, 1980

Most Similar Players

Career comps based on counting + rate stats and primary position. Score is relative — closest peer anchors at ~98%.

Career Spans

Ken Dayley (highlighted) compared to peers across the same era.

  1. 98
    Frank DiPino
    35-38, 3.83 ERA
  2. 96
    Shigetoshi Hasegawa
    45-43, 3.70 ERA
  3. 95
    Luis Arroyo
    40-32, 3.93 ERA
  4. 95
    Roy Lee Jackson
    28-34, 3.77 ERA
  5. 95
    John Habyan
    26-24, 3.85 ERA
  6. 95
    Don Elston
    49-54, 3.69 ERA

Frequently Asked Questions about Ken Dayley

What years did Ken Dayley play?
Ken Dayley played in Major League Baseball from 1982 to 1993.
Was Ken Dayley a pitcher?
Yes. Ken Dayley pitched in the major leagues, recording 33 wins and 406 strikeouts.
How many home runs did Ken Dayley hit?
Ken Dayley hit 0 career home runs with 17 hits.