What years did John Koronka play?

John Koronka played in Major League Baseball from 2005 to 2009.

Was John Koronka a pitcher?

Yes. John Koronka pitched in the major leagues, recording 8 wins and 77 strikeouts.

How many home runs did John Koronka hit?

John Koronka hit 0 career home runs.

What was John Koronka's career batting average?

John Koronka batted .000 over his career, with 0 hits in 13 at bats.

What was John Koronka's career ERA?

John Koronka finished with a 6.25 career ERA, going 8-13 with 77 strikeouts.

How many strikeouts did John Koronka have?

John Koronka recorded 77 career strikeouts.

John Koronka

Pitcher · Career Stats, Bio & Records (2005-2009)

John Koronka was a pitcher who played in Major League Baseball from 2005 to 2009 for the Chicago Cubs, the Texas Rangers, and the Florida Marlins, a span of 5 seasons. Across 31 career appearances, he went 8-13 with a 6.25 ERA and 77 strikeouts.

W (Wins):: Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
ERA (Earned Run Average):: Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
SO (Strikeouts):: For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
WHIP (Walks and Hits per Inning Pitched):: Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.

Data updated October 12, 2026

W–L 8–13

ERA 6.25

WHIP 1.63

SO 77

Pitcher PIV -2345.8

Position: Pitcher
Bats / Throws: L / L
Height / Weight: 6'0" / 200 lb
Born: 7/3/1980 in Clearwater, FL, USA
MLB Debut: 2005-06-01
Last Game: 2009-05-17

Full name: John Vincent Koronka

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Career Pitching Statistics

John Koronka — Career Pitching Statistics
W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
8	13	31	30	0	0	0	158.1	191	110	23	67	77	6.25	-2345.8

Career ERA 6.25 vs. league average 4.40 across their career seasons — 42.0% worse than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

John Koronka — Season-by-Season Pitching
Year	Team	Lg	W	L	G	GS	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
2005	CHN	NL	1	2	4	3	15.2	19	13	8	10	7.47	4.29 (-74%)	-252.2
2006	TEX	AL	7	7	23	23	125.0	145	79	47	61	5.69	4.53 (-26%)	-2062.2
2007	TEX	AL	0	2	2	2	10.1	16	9	5	2	7.84	4.47 (-75%)	-31.4
2009	FLO	NL	0	2	2	2	7.1	11	9	7	4	11.05	—	0.0
Career · 4 seasons			8	13	31	30	158.1	191	110	67	77	6.25	—	-2,346

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Career Batting Statistics

John Koronka — Career Batting Statistics
G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
31	13	0	0	0	0	0	0	0	1	8	.000	.071	.000	.071	0

Career AVG .000 vs. league average .266 across their career seasons — 100.0% below league average.

Career OBP .071 vs. league average .334 across their career seasons — 78.6% below league average.

Career SLG .000 vs. league average .423 across their career seasons — 100.0% below league average.

Career OPS .071 vs. league average .757 across their career seasons — 90.6% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

John Koronka — Season-by-Season Batting
Year	Team	Lg	G	AB	BB	SO	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
2005	CHN	NL	4	4	1	3	.000	—	—	—	—	0.0
2006	TEX	AL	23	6	0	2	.000	—	—	—	—	0.0
2007	TEX	AL	2	2	0	2	.000	—	—	—	—	0.0
2009	FLO	NL	2	1	0	1	.000	—	—	—	—	0.0
Career · 4 seasons			31	13	1	8	.000	—	—	—	—	0

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Game Log & Splits

View full game log (62 games) →

Per-game data from Retrosheet (regular season, through 2025).

Batting — Home / Away

John Koronka — Batting — Home / Away
Split	G	AB	R	H	HR	RBI	AVG
Home	15	2	0	0	0	0	.000
Away	16	11	0	0	0	0	.000

Pitching — Home / Away

John Koronka — Pitching — Home / Away
Split	G	IP	H	ER	BB	SO	ERA
Home	15	78.2	88	49	26	38	5.61
Away	16	79.2	103	61	41	39	6.89

Last 10 Games — Batting

John Koronka — Last 10 Games — Batting
Date	Tm	Opp	Res	AB	SO
2009-05-17	MIA	LAD	L	0	0
2009-05-12	MIA	MIL	L	1	1
2007-05-30	TEX	OAK	L	0	0
2007-05-19	TEX	HOU	L	2	2
2006-08-20	TEX	DET	W	0	0
2006-08-05	TEX	LAA	L	0	0
2006-07-30	TEX	KCR	W	0	0
2006-07-22	TEX	CHW	W	0	0
2006-07-17	TEX	TOR	L	0	0
2006-07-09	TEX	MIN	W	0	0

Last 10 Games — Pitching

John Koronka — Last 10 Games — Pitching
Date	Tm	Opp	Dec	IP	H	R	ER	BB	SO	HR
2009-05-17	MIA	LAD	L	2.2	4	6	4	4	2	1
2009-05-12	MIA	MIL	L	4.2	7	5	5	3	2	3
2007-05-30	TEX	OAK	L	5.1	10	6	6	2	0	0
2007-05-19	TEX	HOU	L	5.0	6	3	3	3	2	0
2006-08-20	TEX	DET	—	1.1	6	6	6	3	0	0
2006-08-05	TEX	LAA	L	4.0	7	7	7	5	4	2
2006-07-30	TEX	KCR	W	5.0	6	2	2	1	5	1
2006-07-22	TEX	CHW	—	6.0	3	1	1	4	1	1
2006-07-17	TEX	TOR	L	3.2	11	9	9	0	1	3
2006-07-09	TEX	MIN	—	5.0	6	2	2	2	4	0

Fielding Statistics

Career Fielding Totals by Position

John Koronka — Career Fielding Totals by Position
Position	G	GS	PO	A	E	DP
P	31	30	5	16	2	1

Season-by-Season Fielding

John Koronka — Season-by-Season Fielding
Year	Team	Pos	G	GS	PO	A	E	DP
2005	CHN	P	4	3	1	2	0	0
2006	TEX	P	23	23	4	11	0	1
2007	TEX	P	2	2	0	0	0	0
2009	FLO	P	2	2	0	3	2	0

Career Games by Position

Position Diamond

Circle size = games played at each position.

John Koronka — Career Games by Position
Position	Games
Pitcher	31

Salary History

John Koronka — Salary History
Year	Team	League	Salary
2006	TEX	AL	$329,000
Total Career Earnings			$329,000

John Koronka: the record in brief

June 1, 2005 and May 17, 2009 bracket John Koronka's time in the majors: the debut and the last game on record. The season rows list, in order, the Chicago Cubs (2005), the Texas Rangers (2006 to 2007), and the Florida Marlins (2009). Koronka, born on July 3, 1980, in Clearwater, FL, USA, is listed as a pitcher and threw and hit left-handed. Size on record: 6 feet, 0 inches and 200 pounds. John Koronka was the playing name; the full given name is John Vincent.

Koronka's career pitching line is 8 wins, 13 losses and a 6.25 ERA over 31 appearances. The totals include 77 strikeouts. Against a 4.40 league ERA for the same seasons, the 6.25 mark was 42.0% worse. No season topped the 7 wins of 2006. Among the heaviest workloads, the lowest ERA was 5.69 in 2006, when the league's was 4.53.

Koronka appears at one position only: pitcher, in 31 games. The fielding table credits Koronka with 5 putouts, 16 assists and 2 errors on the mound.

Frequently Asked Questions about John Koronka

What years did John Koronka play?: John Koronka played in Major League Baseball from 2005 to 2009.
Was John Koronka a pitcher?: Yes. John Koronka pitched in the major leagues, recording 8 wins and 77 strikeouts.
How many home runs did John Koronka hit?: John Koronka hit 0 career home runs.
What was John Koronka's career batting average?: John Koronka batted .000 over his career, with 0 hits in 13 at bats.
What was John Koronka's career ERA?: John Koronka finished with a 6.25 career ERA, going 8-13 with 77 strikeouts.
How many strikeouts did John Koronka have?: John Koronka recorded 77 career strikeouts.