Rolla Mapel
Pitcher · Career Stats, Bio & Records (1919)
Rolla Mapel was a pitcher who played in Major League Baseball in 1919 for the St. Louis Browns. Across 4 career appearances, he went 0-3 with a 4.50 ERA and 2 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
- L / L
- Height / Weight
- 5'11" / 165 lb
- Died
- 4/6/1966 in San Diego, CA, USA
- MLB Debut
- 1919-08-31
- Last Game
- 1919-09-11
Full name: Rolla Hamilton Mapel
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1919 | SLA | AL | 0 | 3 | 4 | 3 | 2 | 0 | 0 | 20.0 | 17 | 10 | 17 | 2 | 4.50 | 3.09 (-46%) | -1110.3 |
| Career · 1 season | 0 | 3 | 4 | 3 | 2 | 0 | 0 | 20.0 | 17 | 10 | 17 | 2 | 4.50 | — | -1,110 | ||
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 6 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | .167 | .167 | .167 | .333 | 0 |
Career AVG .167 vs. league average .262 across their career seasons — 36.4% below league average.
Career OBP .167 vs. league average .323 across their career seasons — 48.4% below league average.
Career SLG .167 vs. league average .348 across their career seasons — 52.1% below league average.
Career OPS .333 vs. league average .671 across their career seasons — 50.3% 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1919 | SLA | AL | 4 | 6 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | .167 | — | — | — | — | 0.0 |
| Career · 1 season | 4 | 6 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | .167 | — | — | — | — | 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 | 2 | 3 | 0 | 1 | 0 | 0 | .333 |
| Away | 2 | 3 | 0 | 0 | 0 | 0 | .000 |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 2 | 10.0 | 10 | 4 | 4 | 2 | 3.60 |
| Away | 2 | 10.0 | 7 | 6 | 13 | 0 | 5.40 |
Last 4 Games — Batting
| Date | Tm | Opp | Res | AB | R | H | 2B | 3B | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1919-09-11 | SLA | BOS | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1919-09-04 | SLA | DET | L | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
| 1919-09-02 | SLA | CLE | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1919-08-31 | SLA | DET | L | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
Last 4 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1919-09-11 | SLA | BOS | L | 2.0 | 3 | 6 | 4 | 6 | 0 | 0 |
| 1919-09-04 | SLA | DET | L | 8.0 | 4 | 2 | 2 | 7 | 0 | 0 |
| 1919-09-02 | SLA | CLE | — | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 1919-08-31 | SLA | DET | L | 9.0 | 10 | 4 | 4 | 4 | 1 | 0 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 4 |
Rolla Mapel: the record in brief
Between the debut on August 31, 1919 and the final game on September 11, 1919, Rolla Mapel built the record summarized on this page. All of the seasons listed were played for the St. Louis Browns. Mapel is listed as a pitcher at 5 feet, 11 inches and 165 pounds. The bio says Mapel batted and threw left-handed. Mapel was born on March 9, 1890, in Lee's Summit, MO, USA. Mapel died on April 6, 1966, in San Diego, CA, USA. The given name on file is Rolla Hamilton Mapel.
Mapel pitched in 4 games, starting 3, and finished with a 0-3 record and 4.50 ERA. Mapel had 2 strikeouts. Against a 3.09 league ERA for the same seasons, the 4.50 mark was 45.9% worse. Mapel's only pitching season is 1919: 4 games, 2 strikeouts.
Every defensive appearance on record for Mapel, 4 games, came at pitcher.
Frequently Asked Questions about Rolla Mapel
- Was Rolla Mapel a pitcher?
- Yes. Rolla Mapel pitched in the major leagues, recording 0 wins and 2 strikeouts.
- How many home runs did Rolla Mapel hit?
- Rolla Mapel hit 0 career home runs with 1 hits.
- What was Rolla Mapel's career batting average?
- Rolla Mapel batted .167 over his career, with 1 hits in 6 at bats.
- What was Rolla Mapel's career ERA?
- Rolla Mapel finished with a 4.50 career ERA, going 0-3 with 2 strikeouts.
- How many strikeouts did Rolla Mapel have?
- Rolla Mapel recorded 2 career strikeouts.
- Is Rolla Mapel in the Hall of Fame?
- No. Rolla Mapel has not been inducted into the National Baseball Hall of Fame.