Jack Flater

Pitcher · Career Stats, Bio & Records (1908)

Jack Flater was a pitcher who played in Major League Baseball in 1908 for the Philadelphia Athletics. Across 5 career appearances, he went 1-3 with a 2.06 ERA and 8 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

W–L 1–3
ERA 2.06
WHIP 1.19
SO 8
Pitcher PIV -385.2
Position
Pitcher
Bats / Throws
R / R
Height / Weight
5'10" / 175 lb
Born
9/22/1883 in Sandymount, MD, USA
Died
3/20/1970 in Westminster, MD, USA
MLB Debut
1908-09-18
Last Game
1908-10-03

Full name: John William Flater

📊 Compare This Player 📈 View Career Timeline

Career Pitching Statistics

Jack Flater — Career Pitching Statistics
W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
1 3 5 3 3 0 0 39.1 35 9 0 12 8 2.06 -385.2

Career ERA 2.06 vs. league average 2.40 across their career seasons — 14.1% better than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Jack Flater — Season-by-Season Pitching
Year Team Lg W L G GS CG SHO SV IP H ER BB SO ERA Lg ERA Pitcher PIV
1908 PHA AL 1 3 5 3 3 0 0 39.1 35 9 12 8 2.06 2.40 (+14%) -385.2
Career · 1 season 1 3 5 3 3 0 0 39.1 35 9 12 8 2.06 — -385

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

Jack Flater — Career Batting Statistics
G AB R H 2B 3B HR RBI SB BB SO AVG OBP SLG OPS PIV
5 15 1 2 0 1 0 3 0 0 7 .133 .133 .267 .400 0

Career AVG .133 vs. league average .241 across their career seasons — 44.6% below league average.

Career OBP .133 vs. league average .298 across their career seasons — 55.3% below league average.

Career SLG .267 vs. league average .307 across their career seasons — 13.0% below league average.

Career OPS .400 vs. league average .605 across their career seasons — 33.9% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Jack Flater — Season-by-Season Batting
Year Team Lg G AB R H 2B 3B HR RBI SB BB SO AVG Lg AVG Lg OBP Lg SLG Lg OPS PIV
1908 PHA AL 5 15 1 2 0 1 0 3 0 0 7 .133 — — — — 0.0
Career · 1 season 5 15 1 2 0 1 0 3 0 0 7 .133 — — — — 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

Jack Flater — Batting — Home / Away
SplitGABRHHRRBIAVG
Home141100.250
Away4110103.091

Pitching — Home / Away

Jack Flater — Pitching — Home / Away
SplitGIPHERBBSOERA
Home18.050220.00
Away431.13001060.00

Last 5 Games — Batting

Jack Flater — Last 5 Games — Batting
DateTmOppResABRH2B3BHRRBIBBSO
1908-10-03 PHABOSW 411000000
1908-09-30 PHACLEL 200000001
1908-09-29 PHACLEL 301010301
1908-09-23 PHACHWL 300000003
1908-09-18 PHASLAL 300000002

Last 5 Games — Pitching

Jack Flater — Last 5 Games — Pitching
DateTmOppDecIPHRERBBSOHR
1908-10-03 PHABOS W 8.0540220
1908-09-30 PHACLE — 5.0110220
1908-09-29 PHACLE L 8.21150110
1908-09-23 PHACHW L 9.2830620
1908-09-18 PHASLA L 8.01020110

Fielding Statistics

Career Fielding Totals by Position

Jack Flater — Career Fielding Totals by Position
Position G GS PO A E DP
P 5 3 6 19 3 2

Season-by-Season Fielding

Jack Flater — Season-by-Season Fielding
Year Team Pos G GS PO A E DP
1908 PHA P 5 3 6 19 3 2

Career Games by Position

Position Diamond

Circle size = games played at each position.

Jack Flater — Career Games by Position
Position Games
Pitcher 5

Jack Flater: the record in brief

Between the debut on September 18, 1908 and the final game on October 3, 1908, Jack Flater built the record summarized on this page. Every season row on the page belongs to the Philadelphia Athletics, in 1908. Flater, born on September 22, 1883, in Sandymount, MD, USA, is listed as a pitcher and threw and hit right-handed. Flater's listed size is 175 pounds on a 5-foot-10 frame. The bio records the death on March 20, 1970, in Westminster, MD, USA. The given name on file is John William Flater.

Flater went 1-3 with a 2.06 ERA in 5 games, 3 of them starts. The totals include 8 strikeouts. Against a 2.40 league ERA for the same years, Flater was 14.1% better. All of that pitching came in 1908, with 5 games and 8 strikeouts.

Flater's game-by-game log, linked below the splits, holds 10 games from Retrosheet.

Every defensive appearance on record for Flater, 5 games, came at pitcher.

Frequently Asked Questions about Jack Flater

Was Jack Flater a pitcher?
Yes. Jack Flater pitched in the major leagues, recording 1 wins and 8 strikeouts.
How many home runs did Jack Flater hit?
Jack Flater hit 0 career home runs with 2 hits.
What teams did Jack Flater play for?
Jack Flater played for one team, the Philadelphia Athletics (1908).
What were Jack Flater's career stats?
In 5 games, Jack Flater went 1-3 with a 2.06 ERA, 8 strikeouts, and 39.1 innings pitched.
What position did Jack Flater play?
Jack Flater played primarily as a pitcher, the position where he appeared in the most games.
How tall was Jack Flater and how much did he weigh?
Jack Flater was listed at 5 feet 10 inches and 175 pounds.
What was Jack Flater's career ERA?
Jack Flater finished with a 2.06 career ERA, going 1-3 with 8 strikeouts.
How many strikeouts did Jack Flater have?
Jack Flater recorded 8 career strikeouts.
Is Jack Flater in the Hall of Fame?
No. Jack Flater has not been inducted into the National Baseball Hall of Fame.