| Date | News |
| 1/28/10 | The Dodgers signed Koronka to a minor-league contract. |
| 4/01/09 | Koronka was sent to minor league camp |
| 1/13/09 | The Marlins signed Koronka to a minor-league contract and invited him to spring training. |
| 9/02/07 | The Indians designated LHP John Koronka for assignment. |
| 8/10/07 | Koronka gave up seven runs (five earned) on seven hits over three innings in AAA Buffalo's 10-2 loss to Ottawa. |
| 7/22/07 | After the Indians signed Koronka off waivers from Texas and optioned him to Buffalo, he lasted 3 2/3 innings in his debut 11-4 loss to Charlotte on Monday. |
| 7/09/07 | The Cleveland Indians claimed John Koronka off outright waivers from the Texas Rangers and optioned him to Triple-A Buffalo. |
| 7/01/07 | The Texas Rangers designated lefthander John Koronka for assignment. He posted an 0-2 record with a 7.84 ERA in two games with the Rangers this season. |
| 6/29/07 | If the Rangers use neither Brandon McCarthy nor Willie Eyre to start in Boston on Monday, they might use Koronka. He allowed a run in seven innings for AAA Oklahoma on Wednesday. However, he has not impressed the Rangers in two emergency starts this season (0-2, 7.84 ERA). |
| 6/02/07 | Texas optioned Koronka to Class AAA Oklahoma.
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| 5/31/07 | The Rangers recalled Koronka from Triple-A Oklahoma yesterday to pitch against Oakland. He pitched 5 1/3 innings, and gave up ten hits and six runs in taking the 6-1 loss. |
| 5/29/07 | Koronka will take Brandon McCarthy's spot in the rotation and pitch tomorrow against Oakland. |
| 5/20/07 | The Rangers optioned John Koronka to Triple-A Oklahoma today. |
| 5/19/07 | The Rangers will call up Koronka to make a one-time shot back in the Rangers' rotation against the Houston Astros today. |
| 3/18/07 | The Texas Rangers optioned Koronka to Triple-A Oklahoma. |
| 3/01/07 | Pitching coach Mark Connor worked with Koronka on his mechanics last fall. He had location problems. Connor said, "I thought it stemmed from him sitting around for 10 days between starts and going back and forth to the minor leagues. From a mechanical standpoint, if everything just wasn't perfect, he struggled." |
| 8/20/06 | Koronka has been called up after his only AAA outing yielding two runs in seven innings with 12 strikeouts. He'll start today against the Tigers. |
| 6/13/06 | News: Koronka started 3-1 with a 3.55 ERA through his first six starts, but the the soft-tossing lefty has gone 1-3 with a 6.52 ERA over his last seven outings.
Views: After allowing six runs on nine hits against the White Sox on Monday, Koronka, whose ERA swelled to 5.11, probably won't remain in the Rangers rotation much longer. |
| 5/22/06 | Koronka suffered from an upper respitory infection earlier in the week, but did not use it as an excuse after getting beat by the Astros yesterday. |
| 4/12/06 | Koronka allowed two runs and six hits in six innings, striking out five. The lefty was one of three pitchers acquired in trades after No.2 starter Adam Eaton went on the DL. Koronka went to the mound with a 1-0 lead, then struck out the side with his first 11 pitches.
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| 4/01/06 | The Rangers dealt the newly acquired Freddie Bynum to the Cubs for lefty Koronka.
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| 3/29/06 | Koronka has put himself into the mix with eight straight scoreless appearances. Koronka, 25, has spent the bulk of his career as a starter but appears comfortable in a relief role. "He's actually been better in relief than he was starting," Baker said. "He's enjoying the role."
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| 6/02/05 | Koronka was called up and pitched adequately, allowing six hits and three runs in five innings of work. He will probably get another start, but don't expect much more out of him. |
| 3/17/05 | Koronka was sent down today. |
| 8/26/03 | The Cubs acquired Koronka from Cincinnati today. He was 7-13 with a 4.18 ERA in 24 starts at AA this season. |
| 3/19/03 | The Rangers will go to the end of camp before deciding if Koronka will be on their opening roster. Koronka is a Rule 5 draft pick from the Reds. |
| 12/16/02 | The Rangers selected Koronka from the Reds in today's rule V draft. |
John Koronka
