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Billy Koch played 6 major-league seasons (1999-2004) as a P (379). Career totals and every year-by-year line below come from the SABR/Lahman database (CC BY-SA), covering 1871-2025.
Showing 2 season lines
| Year | Age | Team | G | AB | R | H | HR | RBI | SB | BB | SO | AVG | OPS | OPS+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 25 | TOR | 56 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | -100 |
| 2000 | 26 | TOR | 68 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | -100 |
| Year | Age | Team | G | GS | W | L | SV | IP | SO | BB | ERA | ERA+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 25 | TOR | 56 | 0 | 0 | 5 | 31 | 63.2 | 57 | 30 | 3.39 | 143 |
| 2000 | 26 | TOR | 68 | 0 | 9 | 3 | 33 | 78.2 | 60 | 18 | 2.63 | 187 |
| 2001 | 27 | TOR | 69 | 0 | 2 | 5 | 36 | 69.1 | 55 | 33 | 4.80 | 93 |
| 2002 | 28 | OAK | 84 | 0 | 11 | 4 | 44 | 93.2 | 93 | 46 | 3.27 | 136 |
| 2003 | 29 | CHA | 55 | 0 | 5 | 5 | 11 | 53 | 42 | 28 | 5.77 | 78 |
| 2004 | 30 | CHA | 24 | 0 | 1 | 1 | 8 | 23.1 | 25 | 16 | 5.40 | 86 |
| 2004 | 30 | FLO | 23 | 0 | 1 | 2 | 0 | 25.2 | 25 | 20 | 3.51 | 123 |
| Year | Pos | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|---|
| 1999 | P | 56 | 0 | 3 | 12 | 0 | 0 |
| 2000 | P | 68 | 0 | 5 | 8 | 0 | 2 |
| 2001 | P | 69 | 0 | 4 | 6 | 1 | 1 |
| 2002 | P | 84 | 0 | 14 | 12 | 0 | 2 |
| 2003 | P | 55 | 0 | 6 | 3 | 0 | 0 |
| 2004 | P | 47 | 0 | 3 | 2 | 1 | 2 |
Team codes are the source codes (e.g. NYN for the New York Mets, BS1 for the 1875 Boston club). OPS+ is league-season normalized, not park-adjusted; unrecorded source values (such as RBI in the earliest recorded seasons) are absent, never zero-filled.
MVP, Cy Young and Rookie of the Year voting history (2 ballot finishes, 0 wins). Full year pages: 2002, 1999.
| Year | Award | Lg | Rank | Points | First-place votes |
|---|---|---|---|---|---|
| 1999 | Rookie of the Year | AL | 7 | 4 / 140 | 0 |
| 2002 | Most Valuable Player | AL | 18 | 8 / 392 | 0 |
Every career total and season line is computed from the SABR / Sean Lahman baseball database (2025 edition, CC BY-SA 3.0), the same source behind our historical position leaderboards. Rate stats use league-season normalization only (OPS+ and ERA+ as marked, never park-adjusted); unrecorded early-era values stay absent rather than being invented. Career totals sum only what the source records.
Award winners and MVP / Cy Young / Rookie of the Year voting history come from the same database; the year pages live under MLB award voting history. Official transactions (2011 to the current season) come from the MLB StatsAPI feed on our transactions archive.