Leo Kiely

Pitcher · Career Stats, Bio & Records (1951-1960)

Leo Kiely was a pitcher who played in Major League Baseball from 1951 to 1960 for the Boston Red Sox and the Kansas City Athletics, a span of 10 seasons. Across 209 career appearances, he went 26-27 with a 3.37 ERA, 212 strikeouts, and 29 saves. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 2759.3.

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 26–27
ERA 3.37
WHIP 1.44
SO 212
Pitcher PIV 2759.3
Position
Pitcher
Bats / Throws
L / L
Height / Weight
6'2" / 180 lb
Born
11/30/1929 in Hoboken, NJ, USA
Died
1/18/1984 in Montclair, NJ, USA
MLB Debut
1951-06-27
Last Game
1960-06-20

Full name: Leo Patrick Kiely

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Career Pitching Statistics

Leo Kiely — Career Pitching Statistics
W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
26 27 209 39 8 1 29 523.0 562 196 39 189 212 3.37 2759.3

Career ERA 3.37 vs. league average 3.93 across their career seasons — 14.1% better than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Leo Kiely — Season-by-Season Pitching
Year Team Lg W L G GS CG SHO SV IP H ER BB SO ERA Lg ERA Pitcher PIV
1951 BOS AL 7 7 17 16 4 0 0 113.1 106 42 39 46 3.34 4.04 (+17%) 739.4
1954 BOS AL 5 8 28 19 4 1 0 131.0 153 51 58 59 3.50 3.90 (+10%) -465.0
1955 BOS AL 3 3 33 4 0 0 6 90.0 91 28 37 36 2.80 4.00 (+30%) 1089.2
1956 BOS AL 2 2 23 0 0 0 3 31.1 47 18 14 9 5.17 3.96 (-30%) 175.7
1958 BOS AL 5 2 47 0 0 0 12 81.0 77 27 18 26 3.00 3.86 (+22%) 1658.5
1959 BOS AL 3 3 41 0 0 0 7 55.2 67 26 18 30 4.20 3.90 (-8%) -631.0
1960 KC1 AL 1 2 20 0 0 0 1 20.2 21 4 5 6 1.74 3.82 (+54%) 192.4
Career · 7 seasons 26 27 209 39 8 1 29 523.0 562 196 189 212 3.37 — 2,759

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

Leo Kiely — Career Batting Statistics
G AB R H 2B 3B HR RBI SB BB SO AVG OBP SLG OPS PIV
210 139 8 20 2 0 1 7 0 12 43 .144 .212 .180 .392 -283

Career AVG .144 vs. league average .258 across their career seasons — 44.3% below league average.

Career OBP .212 vs. league average .329 across their career seasons — 35.7% below league average.

Career SLG .180 vs. league average .392 across their career seasons — 54.1% below league average.

Career OPS .392 vs. league average .721 across their career seasons — 45.7% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Leo Kiely — 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
1951 BOS AL 18 35 1 5 0 0 0 4 0 7 9 .143 — — — — 0.0
1954 BOS AL 28 50 5 9 1 0 1 3 0 2 17 .180 .261 (-31%) .333 (-36%) .390 (-33%) .723 (-35%) -283.1
1955 BOS AL 33 26 2 5 1 0 0 0 0 1 9 .192 — — — — 0.0
1956 BOS AL 23 6 0 1 0 0 0 0 0 0 0 .167 — — — — 0.0
1958 BOS AL 47 13 0 0 0 0 0 0 0 0 4 .000 — — — — 0.0
1959 BOS AL 41 8 0 0 0 0 0 0 0 0 3 .000 — — — — 0.0
1960 KC1 AL 20 1 0 0 0 0 0 0 0 2 1 .000 — — — — 0.0
Career · 7 seasons 210 139 8 20 2 0 1 7 0 12 43 .144 — — — — -283

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 (419 games) →

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

Batting — Home / Away

Leo Kiely — Batting — Home / Away
SplitGABRHHRRBIAVG
Home995851303.224
Away111813714.086

Pitching — Home / Away

Leo Kiely — Pitching — Home / Away
SplitGIPHERBBSOERA
Home98246.02518477903.07
Away111277.03111121111223.64

Last 10 Games — Batting

Leo Kiely — Last 10 Games — Batting
DateTmOppResABRH2B3BHRRBIBBSO
1960-06-20 KC1BOSW 000000000
1960-06-19 KC1MINL 000000000
1960-06-15 KC1NYYL 000000000
1960-06-14 KC1NYYL 000000000
1960-06-13 KC1NYYL 000000000
1960-06-12 KC1BALW 000000000
1960-06-11 KC1BALL 100000001
1960-06-08 KC1MINL 000000000
1960-06-07 KC1MINL 000000000
1960-05-30 KC1DETW 000000000

Last 10 Games — Pitching

Leo Kiely — Last 10 Games — Pitching
DateTmOppDecIPHRERBBSOHR
1960-06-20 KC1BOS — 0.2311010
1960-06-19 KC1MIN — 1.0100010
1960-06-15 KC1NYY — 0.2100000
1960-06-14 KC1NYY — 1.0100010
1960-06-13 KC1NYY — 2.0000100
1960-06-12 KC1BAL — 0.2000000
1960-06-11 KC1BAL L 0.2322000
1960-06-08 KC1MIN — 0.2000000
1960-06-07 KC1MIN — 1.0200100
1960-05-30 KC1DET — 0.2100110

Fielding Statistics

Career Fielding Totals by Position

Leo Kiely — Career Fielding Totals by Position
Position G GS PO A E DP
P 209 23 33 113 8 8

Season-by-Season Fielding

Leo Kiely — Season-by-Season Fielding
Year Team Pos G GS PO A E DP
1951 BOS P 17 0 4 29 2 0
1954 BOS P 28 19 7 20 5 1
1955 BOS P 33 4 6 19 0 4
1956 BOS P 23 0 3 5 0 0
1958 BOS P 47 0 4 19 1 1
1959 BOS P 41 0 7 12 0 1
1960 KC1 P 20 0 2 9 0 1

Career Games by Position

Position Diamond

Circle size = games played at each position.

Leo Kiely — Career Games by Position
Position Games
Pitcher 209

Most Similar Players

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

Career Spans

Leo Kiely (highlighted) compared to peers across the same era.

  1. 98
    Bud Byerly
    22-22, 3.70 ERA
  2. 96
    Joe Corbett
    32-18, 3.42 ERA
  3. 93
    Dyar Miller
    23-17, 3.23 ERA
  4. 93
    Dave Heaverlo
    26-26, 3.41 ERA
  5. 91
    Stan Baumgartner
    26-21, 3.70 ERA
  6. 91
    Ace Adams
    41-33, 3.47 ERA

Leo Kiely: the record in brief

Leo Kiely's major league career runs from a debut on June 27, 1951 to a final game on June 20, 1960. The team column moves through the Boston Red Sox (1951 through 1959) and the Kansas City Athletics (1960). Born on November 30, 1929, in Hoboken, NJ, USA, Kiely is listed as a pitcher and both batted and threw left-handed. Kiely's listed size is 6-foot-2 and 180 pounds. Kiely died on January 18, 1984, in Montclair, NJ, USA. The bio lists the given name Leo Patrick.

Kiely went 26-27 with a 3.37 ERA in 209 games, 39 of them starts. The totals include 212 strikeouts and 29 saves. That 3.37 ERA compares with a 3.93 league average across the same seasons, 14.1% better. The best win total was 7, in 1951. Kiely struck out 59 batters in 1954, a career high. The most saves in one season was 12, in 1958. Among the heaviest workloads, the lowest ERA was 2.80 in 1955, when the league's was 4.00.

Frequently Asked Questions about Leo Kiely

What years did Leo Kiely play?
Leo Kiely played in Major League Baseball from 1951 to 1960.
Was Leo Kiely a pitcher?
Yes. Leo Kiely pitched in the major leagues, recording 26 wins and 212 strikeouts.
How many home runs did Leo Kiely hit?
Leo Kiely hit 1 career home run with 20 hits.
What teams did Leo Kiely play for?
Leo Kiely played for 2 teams: the Boston Red Sox (1951, 1954–1956, 1958–1959) and the Kansas City Athletics (1960).
What were Leo Kiely's career stats?
In 209 games, Leo Kiely went 26-27 with a 3.37 ERA, 212 strikeouts, 523.0 innings pitched, and 29 saves.
What position did Leo Kiely play?
Leo Kiely played primarily as a pitcher, the position where he appeared in the most games.
How tall was Leo Kiely and how much did he weigh?
Leo Kiely was listed at 6 feet 2 inches and 180 pounds.
What was Leo Kiely's career ERA?
Leo Kiely finished with a 3.37 career ERA, going 26-27 with 212 strikeouts.
How many strikeouts did Leo Kiely have?
Leo Kiely recorded 212 career strikeouts.
Is Leo Kiely in the Hall of Fame?
No. Leo Kiely has not been inducted into the National Baseball Hall of Fame.