Lou Mahaffey
Pitcher · Career Stats, Bio & Records (1898)
Lou Mahaffey was a pitcher who played in Major League Baseball in 1898 for the Louisville Colonels. Across 1 career appearance, he went 0-1 with a 3.00 ERA and 1 strikeouts.
- 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
- 5'9" / 170 lb
- Died
- 10/26/1949 in Torrance, CA, USA
- MLB Debut
- 1898-04-26
Full name: Louis Wood Mahaffey
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1898 | LS3 | NL | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 9.0 | 10 | 3 | 5 | 1 | 3.00 | 3.59 (+17%) | 0.0 |
| Career · 1 season | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 9.0 | 10 | 3 | 5 | 1 | 3.00 | — | 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.
Career Batting Statistics
| G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | OBP | SLG | OPS | PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | .000 | .200 | .000 | .200 | 0 |
Career AVG .000 vs. league average .271 across their career seasons — 100.0% below league average.
Career OBP .200 vs. league average .334 across their career seasons — 40.1% below league average.
Career SLG .000 vs. league average .347 across their career seasons — 100.0% below league average.
Career OPS .200 vs. league average .681 across their career seasons — 70.6% 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1898 | LS3 | NL | 1 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | .000 | — | — | — | — | 0.0 |
| Career · 1 season | 1 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | .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 | 1 | 4 | 0 | 0 | 0 | 0 | .000 |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 1 | 8.2 | 10 | 2 | 5 | 1 | 2.08 |
Last 1 Games — Batting
| Date | Tm | Opp | Res | AB | R | H | 2B | 3B | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1898-04-26 | LS3 | CL4 | L | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
Last 1 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1898-04-26 | LS3 | CL4 | L | 8.2 | 10 | 9 | 2 | 5 | 1 | 0 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 1 |
Lou Mahaffey: the record in brief
Lou Mahaffey debuted in the major leagues on April 26, 1898. All of the seasons listed were played for the Louisville Colonels. Mahaffey, born on January 3, 1874, in Dayton, KY, USA, is listed as a pitcher and batted and threw right-handed. Size on record: 5'9" and 170 pounds. The bio records the death on October 26, 1949, in Torrance, CA, USA. Mahaffey's full given name, per the bio, is Louis Wood Mahaffey.
The pitching table credits Mahaffey with a 0-1 record and a 3.00 ERA in 1 games. The same table counts 1 strikeouts. The leagues Mahaffey pitched in allowed 3.59 earned runs per nine over those seasons, so the career ERA was 16.5% better than average. Mahaffey's only pitching season is 1898: 1 games, 1 strikeouts.
Mahaffey appears at one position only: pitcher, in 1 games.
Frequently Asked Questions about Lou Mahaffey
- Was Lou Mahaffey a pitcher?
- Yes. Lou Mahaffey pitched in the major leagues, recording 0 wins and 1 strikeouts.
- How many home runs did Lou Mahaffey hit?
- Lou Mahaffey hit 0 career home runs.
- What teams did Lou Mahaffey play for?
- Lou Mahaffey played for one team, the Louisville Colonels (1898).
- What were Lou Mahaffey's career stats?
- In 1 game, Lou Mahaffey went 0-1 with a 3.00 ERA, 1 strikeouts, and 9.0 innings pitched.
- What position did Lou Mahaffey play?
- Lou Mahaffey played primarily as a pitcher, the position where he appeared in the most games.
- How tall was Lou Mahaffey and how much did he weigh?
- Lou Mahaffey was listed at 5 feet 9 inches and 170 pounds.
- What was Lou Mahaffey's career ERA?
- Lou Mahaffey finished with a 3.00 career ERA, going 0-1 with 1 strikeouts.
- How many strikeouts did Lou Mahaffey have?
- Lou Mahaffey recorded 1 career strikeouts.
- Is Lou Mahaffey in the Hall of Fame?
- No. Lou Mahaffey has not been inducted into the National Baseball Hall of Fame.