Rollin Cook
Pitcher · Career Stats, Bio & Records (1915)
Rollin Cook was a pitcher who played in Major League Baseball in 1915 for the St. Louis Browns. Across 5 career appearances, he went 0-0 with a 7.24 ERA and 7 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" / 152 lb
- Died
- 8/11/1975 in Toledo, OH, USA
- MLB Debut
- 1915-07-06
- Last Game
- 1915-08-11
Full name: Rollin Edward Cook
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1915 | SLA | AL | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 13.2 | 16 | 11 | 9 | 7 | 7.24 | 2.90 (-150%) | -236.3 |
| Career · 1 season | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 13.2 | 16 | 11 | 9 | 7 | 7.24 | — | -236 | ||
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .250 | .250 | .250 | .500 | 0 |
Career AVG .250 vs. league average .251 across their career seasons — near league average.
Career OBP .250 vs. league average .319 across their career seasons — 21.5% below league average.
Career SLG .250 vs. league average .332 across their career seasons — 24.8% below league average.
Career OPS .500 vs. league average .651 across their career seasons — 23.2% 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1915 | SLA | AL | 5 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .250 | — | — | — | — | 0.0 |
| Career · 1 season | 5 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .250 | — | — | — | — | 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 (10 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 3 | 3 | 0 | 1 | 0 | 0 | .333 |
| Away | 2 | 1 | 0 | 0 | 0 | 0 | .000 |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 3 | 8.2 | 7 | 5 | 8 | 5 | 5.19 |
| Away | 2 | 5.0 | 8 | 5 | 1 | 2 | 9.00 |
Last 5 Games — Batting
| Date | Tm | Opp | Res | AB | R | H | 2B | 3B | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1915-08-11 | SLA | BOS | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1915-08-10 | SLA | BOS | L | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1915-07-19 | SLA | NYY | L | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1915-07-16 | SLA | MIN | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1915-07-06 | SLA | CHW | L | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Last 5 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1915-08-11 | SLA | BOS | — | 1.0 | 2 | 0 | 0 | 0 | 0 | 0 |
| 1915-08-10 | SLA | BOS | — | 4.0 | 6 | 5 | 5 | 1 | 2 | 0 |
| 1915-07-19 | SLA | NYY | — | 2.2 | 0 | 4 | 4 | 6 | 2 | 0 |
| 1915-07-16 | SLA | MIN | — | 1.0 | 1 | 0 | 0 | 1 | 1 | 0 |
| 1915-07-06 | SLA | CHW | — | 5.0 | 6 | 5 | 1 | 1 | 2 | 0 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 5 |
College History
| School Name | City | State | Years Attended |
|---|---|---|---|
| The Ohio State University | Columbus | OH | 1913, 1914 |
Rollin Cook: the record in brief
Rollin Cook played a first major league game on July 6, 1915 and a last one on August 11, 1915. The team column never changes: it is the St. Louis Browns in 1915. Cook, born on October 5, 1890, in Toledo, OH, USA, is listed as a pitcher and both batted and threw right-handed. Size on record: 5'9" and 152 pounds. Cook died on August 11, 1975, in Toledo, OH, USA. Cook's full given name, per the bio, is Rollin Edward Cook.
Across 5 games (0 starts), Cook recorded 0 wins against 0 losses with a 7.24 ERA. The same table counts 7 strikeouts. The league ERA over Cook's seasons was 2.90, so the 7.24 figure ran 150.1% worse than average. Cook's only pitching season is 1915: 5 games, 7 strikeouts.
The college table lists The Ohio State University in 1913 and 1914. The game-log section draws on 10 games of Retrosheet box scores for Cook.
Cook appears at one position only: pitcher, in 5 games.
Frequently Asked Questions about Rollin Cook
- Was Rollin Cook a pitcher?
- Yes. Rollin Cook pitched in the major leagues, recording 0 wins and 7 strikeouts.
- How many home runs did Rollin Cook hit?
- Rollin Cook hit 0 career home runs with 1 hits.
- What was Rollin Cook's career batting average?
- Rollin Cook batted .250 over his career, with 1 hits in 4 at bats.
- What was Rollin Cook's career ERA?
- Rollin Cook finished with a 7.24 career ERA, going 0-0 with 7 strikeouts.
- How many strikeouts did Rollin Cook have?
- Rollin Cook recorded 7 career strikeouts.
- Is Rollin Cook in the Hall of Fame?
- No. Rollin Cook has not been inducted into the National Baseball Hall of Fame.