Billy Koch

Pitcher · Career Stats, Bio & Records (1999-2004)

Billy Koch was a pitcher who played in Major League Baseball from 1999 to 2004 for 4 teams, including the Toronto Blue Jays, a span of 6 seasons. Across 379 career appearances, he went 29-25 with a 3.89 ERA, 357 strikeouts, and 163 saves. Billy Koch was a Reliever of the Year. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 3666.7.

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 29–25
ERA 3.89
WHIP 1.40
SO 357
Pitcher PIV 3666.7
Position
Pitcher
Bats / Throws
R / R
Height / Weight
6'3" / 218 lb
Born
12/14/1974 in Rockville Centre, NY, USA
MLB Debut
1999-05-05
Last Game
2004-08-26
Awards
Reliever of the Year

Full name: William Christopher Koch

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Career Pitching Statistics

Billy Koch — Career Pitching Statistics
W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
29 25 379 0 0 0 163 407.1 379 176 41 191 357 3.89 3666.7

Career ERA 3.89 vs. league average 4.51 across their career seasons — 13.7% better than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Billy Koch Stats, Bio & Career Records
Year Team Lg W L G GS CG SHO SV IP H ER BB SO ERA Lg ERA Pitcher PIV
1999 TOR AL 0 5 56 0 0 0 31 63.2 55 24 30 57 3.39 4.71 (+28%) 1272.5
2000 TOR AL 9 3 68 0 0 0 33 78.2 78 23 18 60 2.63 4.77 (+45%) 2811.0
2001 TOR AL 2 5 69 0 0 0 36 69.1 69 37 33 55 4.80 4.42 (-9%) -78.1
2002 OAK AL 11 4 84 0 0 0 44 93.2 73 34 46 93 3.27 4.28 (+24%) 1739.5
2003 CHA AL 5 5 55 0 0 0 11 53.0 59 34 28 42 5.77 4.40 (-31%) -1512.2
2004 CHA AL 1 1 24 0 0 0 8 23.1 24 14 16 25 5.40 4.46 (-21%) -249.3
2004 FLO NL 1 2 23 0 0 0 0 25.2 21 10 20 25 3.51 4.46 (+21%) -316.8
Career · 7 seasons 29 25 379 0 0 0 163 407.1 379 176 191 357 3.89 — 3,667

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

Billy Koch — Career Batting Statistics
G AB R H 2B 3B HR RBI SB BB SO AVG OBP SLG OPS PIV
379 2 0 0 0 0 0 0 0 0 2 .000 .000 .000 .000 0

Career AVG .000 vs. league average .266 across their career seasons — 100.0% below league average.

Career OBP .000 vs. league average .337 across their career seasons — 100.0% below league average.

Career SLG .000 vs. league average .427 across their career seasons — 100.0% below league average.

Career OPS .000 vs. league average .764 across their career seasons — 100.0% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Billy Koch — 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
1999 TOR AL 56 1 0 0 0 0 0 0 0 0 1 .000 — — — — 0.0
2000 TOR AL 68 1 0 0 0 0 0 0 0 0 1 .000 — — — — 0.0
2001 TOR AL 69 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2002 OAK AL 84 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2003 CHA AL 55 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2004 CHA AL 24 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2004 FLO NL 23 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
Career · 7 seasons 379 2 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.

Postseason Statistics

Playoff Career Batting

Billy Koch — Playoff Career Batting
G AB R H 2B 3B HR RBI BB SO AVG
3 0 0 0 0 0 0 0 0 0 .000

Playoff Batting by Year

Billy Koch — Playoff Batting by Year
Year Round Team G AB R H 2B 3B HR RBI BB SO AVG
2002 ALDS2 OAK 3 0 0 0 0 0 0 0 0 0 .000

Playoff Career Pitching

Billy Koch — Playoff Career Pitching
W L G GS SV IP H ER BB SO ERA
0 0 3 0 1 3.0 5 3 2 3 9.00

Playoff Pitching by Year

Billy Koch — Playoff Pitching by Year
Year Round Team W L G GS SV IP H ER BB SO ERA
2002 ALDS2 OAK 0 0 3 0 1 3.0 5 3 2 3 9.00

Game Log & Splits

View full game log (758 games) →

Per-game data from Retrosheet (regular season, through 2025).

Batting — Home / Away

Billy Koch — Batting — Home / Away
SplitGABRHHRRBIAVG
Home20200000—
Away17720000.000

Pitching — Home / Away

Billy Koch — Pitching — Home / Away
SplitGIPHERBBSOERA
Home202222.1202104992014.21
Away177185.017772921563.50

Last 10 Games — Pitching

Billy Koch — Last 10 Games — Pitching
DateTmOppDecIPHRERBBSOHR
2004-08-26 MIASFG — 0.2111320
2004-08-20 MIASDP — 1.0100000
2004-08-17 MIALAD — 1.0111011
2004-08-12 MIASTL — 1.0000000
2004-08-07 MIAMIL — 1.0100200
2004-08-06 MIAMIL W 1.0000000
2004-07-30 MIAWSN — 1.0000100
2004-07-29 MIAPHI — 2.0000100
2004-07-25 MIAWSN — 1.0100010
2004-07-22 MIAPHI — 0.1100200

Fielding Statistics

Career Fielding Totals by Position

Billy Koch — Career Fielding Totals by Position
Position G GS PO A E DP
P 379 0 35 43 2 7

Season-by-Season Fielding

Billy Koch — Season-by-Season Fielding
Year Team Pos G GS PO A E DP
1999 TOR P 56 0 3 12 0 0
2000 TOR P 68 0 5 8 0 2
2001 TOR P 69 0 4 6 1 1
2002 OAK P 84 0 14 12 0 2
2003 CHA P 55 0 6 3 0 0
2004 CHA P 24 0 1 1 1 0
2004 FLO P 23 0 2 1 0 2

Career Games by Position

Position Diamond

Circle size = games played at each position.

Billy Koch — Career Games by Position
Position Games
Pitcher 379

Awards & Honors

Billy Koch — Awards & Honors
Year Award Notes
2002 Reliever of the Year Award
2002 TSN Reliever of the Year

Salary History

Billy Koch's recorded salaries total $14,324,999 over 6 seasons, 1999 to 2004. Koch's career, 1999 to 2004, falls within 1985 to 2016, the years the salary data covers.

Billy Koch — Salary History
Year Team League Salary
2004 CHA AL $6,375,000
2003 CHA AL $4,250,000
2002 OAK AL $2,433,333
2001 TOR AL $733,333
2000 TOR AL $333,333
1999 TOR AL $200,000
Total recorded salary $14,324,999

College History

Billy Koch — College History
School Name City State Years Attended
Clemson University Clemson SC 1994, 1995, 1996

Award Voting History

Billy Koch — Award Voting History
Year Award League Finish Points Won Points Max Votes First
2002 Most Valuable Player AL 18th 8.0 392 0
1999 Rookie of the Year AL 7th 4.0 140 0

Most Similar Players

Career comps based on counting + rate stats and primary position. Score is relative — closest peer anchors at ~98%.

Career Spans

Billy Koch (highlighted) compared to peers across the same era.

  1. 98
    Joe Borowski
    22-34, 4.18 ERA
  2. 95
    Joel Hanrahan
    22-18, 3.85 ERA
  3. 95
    Mark Wohlers
    39-29, 3.97 ERA
  4. 91
    Ricky Bottalico
    33-42, 3.99 ERA
  5. 89
    Jeurys Familia
    34-29, 3.58 ERA
  6. 89
    John Axford
    38-34, 3.90 ERA

Billy Koch: the record in brief

Billy Koch played a first major league game on May 5, 1999 and a last one on August 26, 2004. Koch played for the Toronto Blue Jays (1999 to 2001), the Oakland Athletics (2002), the Chicago White Sox (2003 through 2004), and the Florida Marlins (2004). The bio lists Koch as a pitcher who threw and hit right-handed. Height and weight on file: 6'3" and 218 pounds. Koch was born on December 14, 1974, in Rockville Centre, NY, USA. The given name on file is William Christopher Koch.

Koch pitched in 379 games, starting 0, and finished with a 29-25 record and 3.89 ERA. The same table counts 357 strikeouts and 163 saves. The leagues Koch pitched in allowed 4.51 earned runs per nine over those seasons, so the career ERA was 13.7% better than average. No season topped the 11 wins of 2002. The most saves in one season was 44, in 2002. Among the heaviest workloads, the lowest ERA was 2.63 in 2000, when the league's was 4.77.

Frequently Asked Questions about Billy Koch

What years did Billy Koch play?
Billy Koch played in Major League Baseball from 1999 to 2004.
Was Billy Koch a pitcher?
Yes. Billy Koch pitched in the major leagues, recording 29 wins and 357 strikeouts.
How many home runs did Billy Koch hit?
Billy Koch hit 0 career home runs.
What teams did Billy Koch play for?
Billy Koch played for 4 teams: the Toronto Blue Jays (1999–2001), the Oakland Athletics (2002), the Chicago White Sox (2003–2004), and the Florida Marlins (2004).
What were Billy Koch's career stats?
In 379 games, Billy Koch went 29-25 with a 3.89 ERA, 357 strikeouts, 407.1 innings pitched, and 163 saves.
How much did Billy Koch earn in his career?
Billy Koch's recorded salaries total $14,324,999 over 6 seasons, 1999 to 2004. Koch's career, 1999 to 2004, falls within 1985 to 2016, the years the salary data covers.
What was Billy Koch's salary?
Billy Koch's last recorded salary was $6,375,000, in 2004. His highest recorded salary was $6,375,000, in 2004, and his lowest was $200,000, in 1999. The Salary History table lists each season from 1999 to 2004.
What position did Billy Koch play?
Billy Koch played primarily as a pitcher, the position where he appeared in the most games.
How tall was Billy Koch and how much did he weigh?
Billy Koch was listed at 6 feet 3 inches and 218 pounds.
What was Billy Koch's career ERA?
Billy Koch finished with a 3.89 career ERA, going 29-25 with 357 strikeouts.
How many strikeouts did Billy Koch have?
Billy Koch recorded 357 career strikeouts.
Is Billy Koch in the Hall of Fame?
No. Billy Koch has not been inducted into the National Baseball Hall of Fame.