Don Kaiser
Pitcher · Career Stats, Bio & Records (1955-1957)
Don Kaiser was a pitcher who played in Major League Baseball from 1955 to 1957 for the Chicago Cubs, a span of 3 seasons. Across 58 career appearances, he went 6-15 with a 4.15 ERA and 108 strikeouts. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 1301.9.
- 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
- Position
- Pitcher
- Bats / Throws
- R / R
- Height / Weight
- 6'5" / 195 lb
- MLB Debut
- 1955-07-20
- Last Game
- 1957-09-24
Full name: Clyde Donald Kaiser
Season-by-Season Pitching
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1955 | CHN | NL | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 18.1 | 20 | 11 | 5 | 11 | 5.40 | 4.00 (-35%) | 198.1 |
| 1956 | CHN | NL | 4 | 9 | 27 | 22 | 5 | 1 | 0 | 150.1 | 144 | 60 | 52 | 74 | 3.59 | 3.96 (+9%) | 872.6 |
| 1957 | CHN | NL | 2 | 6 | 20 | 13 | 1 | 0 | 0 | 72.0 | 91 | 40 | 28 | 23 | 5.00 | 3.83 (-30%) | 231.2 |
| Career · 3 seasons | 6 | 15 | 58 | 35 | 6 | 1 | 0 | 240.2 | 255 | 111 | 85 | 108 | 4.15 | — | 1,302 | ||
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 58 | 68 | 2 | 4 | 0 | 0 | 0 | 2 | 0 | 1 | 38 | .059 | .070 | .059 | .129 | 0 |
Career AVG .059 vs. league average .258 across their career seasons — 77.2% below league average.
Career OBP .070 vs. league average .329 across their career seasons — 78.6% below league average.
Career SLG .059 vs. league average .394 across their career seasons — 85.1% below league average.
Career OPS .129 vs. league average .723 across their career seasons — 82.1% below league average.
Season-by-Season Batting
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1955 | CHN | NL | 11 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | — | — | — | — | 0.0 |
| 1956 | CHN | NL | 27 | 47 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 30 | .043 | — | — | — | — | 0.0 |
| 1957 | CHN | NL | 20 | 19 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 7 | .105 | — | — | — | — | 0.0 |
| Career · 3 seasons | 58 | 68 | 2 | 4 | 0 | 0 | 0 | 2 | 0 | 1 | 38 | .059 | — | — | — | — | 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 (116 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 22 | 27 | 2 | 2 | 0 | 0 | .074 |
| Away | 36 | 41 | 0 | 2 | 0 | 2 | .049 |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 22 | 93.0 | 91 | 40 | 30 | 40 | 3.87 |
| Away | 36 | 147.2 | 164 | 71 | 55 | 68 | 4.33 |
Last 10 Games — Batting
| Date | Tm | Opp | Res | AB | R | H | 2B | 3B | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1957-09-24 | CHC | CIN | L | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1957-07-21 | CHC | BRO | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1957-07-20 | CHC | BRO | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1957-07-19 | CHC | BRO | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1957-07-14 | CHC | NY1 | L | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1957-07-04 | CHC | STL | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1957-07-02 | CHC | CIN | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1957-06-26 | CHC | PIT | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1957-06-25 | CHC | PIT | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1957-06-20 | CHC | PHI | L | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
Last 10 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1957-09-24 | CHC | CIN | L | 4.0 | 7 | 4 | 4 | 3 | 2 | 1 |
| 1957-07-21 | CHC | BRO | — | 2.0 | 2 | 0 | 0 | 0 | 2 | 0 |
| 1957-07-20 | CHC | BRO | — | 0.1 | 3 | 2 | 2 | 0 | 0 | 0 |
| 1957-07-19 | CHC | BRO | — | 2.0 | 0 | 0 | 0 | 0 | 2 | 0 |
| 1957-07-14 | CHC | NY1 | — | 3.1 | 4 | 2 | 2 | 2 | 0 | 0 |
| 1957-07-04 | CHC | STL | — | 0.2 | 1 | 0 | 0 | 1 | 0 | 0 |
| 1957-07-02 | CHC | CIN | — | 1.2 | 3 | 5 | 5 | 3 | 0 | 1 |
| 1957-06-26 | CHC | PIT | — | 2.0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 1957-06-25 | CHC | PIT | — | 0.1 | 4 | 2 | 2 | 1 | 0 | 0 |
| 1957-06-20 | CHC | PHI | L | 5.2 | 8 | 6 | 4 | 3 | 1 | 0 |
Fielding Statistics
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 58 |
Don Kaiser: the record in brief
Don Kaiser's major league career runs from a debut on July 20, 1955 to a final game on September 24, 1957. All of the seasons listed were played for the Chicago Cubs. Born on February 3, 1935, in Byng, OK, USA, Kaiser is listed as a pitcher and both batted and threw right-handed. Size on record: 6 feet, 5 inches and 195 pounds. Kaiser's full given name, per the bio, is Clyde Donald Kaiser.
Across 58 games (35 starts), Kaiser recorded 6 wins against 15 losses with a 4.15 ERA. The totals include 108 strikeouts. The league ERA over Kaiser's seasons was 3.93, so the 4.15 figure ran 5.6% worse than average. 1956 was Kaiser's sharpest full season, a 3.59 ERA against the league's 3.96. Kaiser's career Pitcher PIV, which scores run prevention against each season's league, is 1,301.9.
Every defensive appearance on record for Kaiser, 58 games, came at pitcher. The fielding table credits Kaiser with 12 putouts, 48 assists and 5 errors on the mound.
Frequently Asked Questions about Don Kaiser
- What years did Don Kaiser play?
- Don Kaiser played in Major League Baseball from 1955 to 1957.
- Was Don Kaiser a pitcher?
- Yes. Don Kaiser pitched in the major leagues, recording 6 wins and 108 strikeouts.
- How many home runs did Don Kaiser hit?
- Don Kaiser hit 0 career home runs with 4 hits.
- What was Don Kaiser's career batting average?
- Don Kaiser batted .059 over his career, with 4 hits in 68 at bats.
- How many RBI did Don Kaiser have?
- Don Kaiser drove in 2 runs in his career.
- What was Don Kaiser's career ERA?
- Don Kaiser finished with a 4.15 career ERA, going 6-15 with 108 strikeouts.