December 7, 2012
Koji Uehara Has Done Some Things
These aim to be spectacular factoids about Koji Uehara, who is spectacular. They feature a moderate amount of cherry-picking and sample size cheats, but not that much! All statistics except where noted are since 2010, when Uehara converted from starting to relief. And they almost all center around one core fact: Uehara has, in his career, including as a starter, struck out 7.97 batters for every walk, which is the best ratio in history (minimum 100 innings). The next best is Sergio Romo, all the way back at 5.77, and nobody else is over 5. Already spectacular!
Koji Uehara walked three batters during the 2012 season, in 36 innings.
He has never hit a batter, including as a starter. Only one active pitcher (Hisanori Takahashi) has thrown more innings in his career without hitting a batter (29 more than Uehara), and only one additional pitcher (Andrew Bailey) has thrown even 70 career innings without hitting a batter. Oddly enough, he has five wins in his career (including two as a starter) and walked six batters, while striking out eight, in those five games.
Koji Uehara signed for one year and $4.5 million. Jeremy Affeldt, who is exceptionally good at getting lefties out, signed for three years and $18 million. Affeldt has held lefties to a .524 OPS in the past two years; Uehara has held lefties to a .499 OPS in the past two years, in the harder league, in hitters parks.
Koji Uehara signed for one year and $4.5 million. Brandon League, who is exceptionally good at getting righties out, signed for three years and $21 million. League has held righties to a .508 OPS in the past two years; Uehara has held righties to a .523 OPS in the past two years, all of it in the harder league, in hitters parks.*
*he also allows a lot of home runs