Bill Kalfass
Pitcher · Career Stats, Bio & Records (1937)
Bill Kalfass was a pitcher who played in Major League Baseball in 1937 for the Philadelphia Athletics. Across 3 career appearances, he went 1-0 with a 3.00 ERA and 9 strikeouts. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 40.9.
- 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 / L
- Height / Weight
- 6'3" / 190 lb
- Died
- 9/8/1968 in Brooklyn, NY, USA
- MLB Debut
- 1937-09-15
- Last Game
- 1937-10-02
Full name: William Philip Kalfass
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1937 | PHA | AL | 1 | 0 | 3 | 1 | 1 | 0 | 0 | 12.0 | 10 | 4 | 10 | 9 | 3.00 | 4.34 (+31%) | 40.9 |
| Career · 1 season | 1 | 0 | 3 | 1 | 1 | 0 | 0 | 12.0 | 10 | 4 | 10 | 9 | 3.00 | — | 41 | ||
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | .000 | .000 | .000 | .000 | 0 |
Career AVG .000 vs. league average .277 across their career seasons — 100.0% below league average.
Career OBP .000 vs. league average .342 across their career seasons — 100.0% below league average.
Career SLG .000 vs. league average .398 across their career seasons — 100.0% below league average.
Career OPS .000 vs. league average .741 across their career seasons — 100.0% 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1937 | PHA | AL | 3 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | .000 | — | — | — | — | 0.0 |
| Career · 1 season | 3 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | .000 | — | — | — | — | 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
Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 3 | 4 | 0 | 0 | 0 | 0 | .000 |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 3 | 12.0 | 10 | 4 | 10 | 9 | 3.00 |
Last 3 Games — Batting
| Date | Tm | Opp | Res | AB | R | H | 2B | 3B | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1937-10-02 | PHA | MIN | W | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
| 1937-09-22 | PHA | CHW | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1937-09-15 | PHA | SLA | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Last 3 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1937-10-02 | PHA | MIN | W | 9.0 | 8 | 3 | 3 | 7 | 7 | 0 |
| 1937-09-22 | PHA | CHW | — | 2.0 | 1 | 0 | 0 | 1 | 2 | 0 |
| 1937-09-15 | PHA | SLA | — | 1.0 | 1 | 1 | 1 | 2 | 0 | 0 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 3 |
Bill Kalfass: the record in brief
Bill Kalfass played a first major league game on September 15, 1937 and a last one on October 2, 1937. The team column never changes: it is the Philadelphia Athletics in 1937. Kalfass, a pitcher by primary position, batted right-handed and threw left-handed. Height and weight on file: 6 feet, 3 inches and 190 pounds. Kalfass was born on March 3, 1916, in New York, NY, USA. Kalfass's death is recorded on September 8, 1968, in Brooklyn, NY, USA. Bill Kalfass was the playing name; the full given name is William Philip.
Across 3 games (1 starts), Kalfass recorded 1 win against 0 losses with a 3.00 ERA. Kalfass had 9 strikeouts. Against a 4.34 league ERA for the same years, Kalfass was 30.8% better. All of that pitching came in 1937, with 3 games and 9 strikeouts. By Pitcher PIV, Baseball Data Hub's measure of run prevention relative to each season's league, Kalfass's career adds up to 40.9.
Every defensive appearance on record for Kalfass, 3 games, came at pitcher.
Frequently Asked Questions about Bill Kalfass
- Was Bill Kalfass a pitcher?
- Yes. Bill Kalfass pitched in the major leagues, recording 1 wins and 9 strikeouts.
- How many home runs did Bill Kalfass hit?
- Bill Kalfass hit 0 career home runs.
- What teams did Bill Kalfass play for?
- Bill Kalfass played for one team, the Philadelphia Athletics (1937).
- What were Bill Kalfass's career stats?
- In 3 games, Bill Kalfass went 1-0 with a 3.00 ERA, 9 strikeouts, and 12.0 innings pitched.
- What position did Bill Kalfass play?
- Bill Kalfass played primarily as a pitcher, the position where he appeared in the most games.
- How tall was Bill Kalfass and how much did he weigh?
- Bill Kalfass was listed at 6 feet 3 inches and 190 pounds.
- What was Bill Kalfass's career ERA?
- Bill Kalfass finished with a 3.00 career ERA, going 1-0 with 9 strikeouts.
- How many strikeouts did Bill Kalfass have?
- Bill Kalfass recorded 9 career strikeouts.
- Is Bill Kalfass in the Hall of Fame?
- No. Bill Kalfass has not been inducted into the National Baseball Hall of Fame.