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Koji Uehara played 9 major-league seasons (2009-2017) as a P (436). Career totals and every year-by-year line below come from the SABR/Lahman database (CC BY-SA), covering 1871-2025.
Showing 1 season lines
| Year | Age | Team | G | AB | R | H | HR | RBI | SB | BB | SO | AVG | OPS | OPS+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2009 | 34 | BAL | 12 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | .000 | .333 | -1 |
| Year | Age | Team | G | GS | W | L | SV | IP | SO | BB | ERA | ERA+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2009 | 34 | BAL | 12 | 12 | 2 | 4 | 0 | 66.2 | 48 | 12 | 4.05 | 110 |
| 2010 | 35 | BAL | 43 | 0 | 1 | 2 | 13 | 44 | 55 | 5 | 2.86 | 144 |
| 2011 | 36 | BAL|TEX | 65 | 0 | 2 | 3 | 0 | 65 | 85 | 9 | 2.35 | 173 |
| 2012 | 37 | TEX | 37 | 0 | 0 | 0 | 1 | 36 | 43 | 3 | 1.75 | 233 |
| 2013 | 38 | BOS | 73 | 0 | 4 | 1 | 21 | 74.1 | 101 | 9 | 1.09 | 366 |
| 2014 | 39 | BOS | 64 | 0 | 6 | 5 | 26 | 64.1 | 80 | 8 | 2.52 | 151 |
| 2015 | 40 | BOS | 43 | 0 | 2 | 4 | 25 | 40.1 | 47 | 9 | 2.23 | 180 |
| 2016 | 41 | BOS | 50 | 0 | 2 | 3 | 7 | 47 | 63 | 11 | 3.45 | 122 |
| 2017 | 42 | CHN | 49 | 0 | 3 | 4 | 2 | 43 | 50 | 12 | 3.98 | 109 |
| Year | Pos | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|---|
| 2009 | P | 12 | 12 | 0 | 5 | 0 | 1 |
| 2010 | P | 43 | 0 | 2 | 3 | 0 | 0 |
| 2011 | P | 65 | 0 | 2 | 4 | 0 | 0 |
| 2012 | P | 37 | 0 | 4 | 1 | 1 | 0 |
| 2013 | P | 73 | 0 | 2 | 7 | 0 | 0 |
| 2014 | P | 64 | 0 | 3 | 7 | 0 | 0 |
| 2015 | P | 43 | 0 | 2 | 2 | 0 | 0 |
| 2016 | P | 50 | 0 | 1 | 4 | 1 | 0 |
| 2017 | P | 49 | 0 | 0 | 5 | 0 | 0 |
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.
Koji Uehara won: ALCS MVP 2013 (AL).
MVP, Cy Young and Rookie of the Year voting history (2 ballot finishes, 0 wins). Full year pages: 2013.
| Year | Award | Lg | Rank | Points | First-place votes |
|---|---|---|---|---|---|
| 2013 | Cy Young Award | AL | 7 | 10 / 210 | 0 |
| 2013 | Most Valuable Player | AL | 21 | 2 / 420 | 0 |
Koji Uehara ranks on 2 all-time single-season position leaderboards (1871-2025, league-season-normalized OPS+ / ERA+).
| Rank | Board | Year | Stat |
|---|---|---|---|
| #15 | closers | 2013 | 366 ERA+ |
| #24 | relief pitchers | 2013 | 366 ERA+ |
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.