- Full name John Vincent Koronka
- Born 07/03/1980 in Clearwater, FL
- Profile Ht.: 6'0" / Wt.: 200 / Bats: L / Throws: L
- School Southlake
- Debut 06/01/2005
- Drafted in the 12th round (350th overall) by the Cincinnati Reds in 1998.
Organization Prospect Rankings
Koronka adds to Texas' lefthanded depth after being plucked from the Reds in the major league Rule 5 draft. He got onto the prospect map last season by winning his first 11 decisions with Stockton, earning California League all-star honors. Koronka was much more hittable after his promotion to Double-A, but the Rangers saw enough potential to merit trying to keep him on their 25-man roster for all of this season. Koronka fits the bill of pitchers Grady Fuson looks for. He throws strikes (with a fastball in the high 80s) and has a good changeup, which Reds officials considered of major league caliber. He was effective with that combination in the Arizona Fall League, where he held hitters to a .212 average. Koronka's chances of sticking in the majors will be coming up with a breaking ball. His fastball/changeup combo doesn't faze lefthanders, who hit .355 against him last year. He'll have to improve on his slurvy curveball to stick as a situational reliever, the usual path for Rule 5 lefthanders.
Best Tools List
- Rated Best Changeup in the Chicago Cubs in 2006