J.R. Mathes

  • P
  • B/T: L/L
  • 6' 3"/210

J.R. Mathes does not have any MLB stats for the 2011 season

J.R. Mathes Bio

  • Full Name: Alfred George Mathes
  • Born: 11/9/1981 in Granger, IN
  • Draft: 2004, Chicago Cubs, 16th rd. (486th overall)
  • College: Western Michigan
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J.R. Mathes does not have any MLB stats for the 2011 season


Note: Opponent can be found on current team or on team when both players met.

J.R. Mathes Stats

J.R. Mathes Advanced Stats

J.R. Mathes Statcast Events


J.R. Mathes Awards

PCL Mid-Season All-Star

Year Team League
2008 Iowa PCL

SOU Mid-Season All-Star

Year Team League
2006 West Tenn SOU

FSL Pitcher of the Week

Week Team League
06/12/2005 Daytona FSL

J.R. Mathes Latest Transactions

Team Date Transaction
May 27, 2011 Iowa Cubs released LHP J.R. Mathes.
September 7, 2010 Iowa Cubs activated LHP J.R. Mathes from the 7-day disabled list.
August 23, 2010 Iowa Cubs placed LHP J.R. Mathes on the 7-day disabled list. Left elbow
January 13, 2010 Chicago Cubs invited non-roster LHP J.R. Mathes to spring training.
July 20, 2009 Iowa Cubs activated LHP J.R. Mathes from the 7-day disabled list.
July 6, 2009 Iowa Cubs placed LHP J.R. Mathes on the 7-day disabled list.

Alfred George Mathes Bio Info

J.R. begins his seventh season with the Cubs organization ... he owns a 56-37 minor league record with a 4.20 ERA (361 ER/773.0 IP) in 146 games (129 starts) ... has struck out 481 hitters compared to 162 walks in 773.0 innings pitched...Named to the mid-season Pacific Coast League All-Star Team in 2008 ... was a mid-season Southern League All-Star in 2006...Attended Western Michigan University. 2009 J.R. earned Pitcher of the Year honors for Triple-A Iowa, going 12-8 with a 3.62 ERA (52 ER/129.1 IP) in 26 games (21 starts) ... his 3.62 ERA ranked ninth in the Pacific Coast League ... struck out 51 compared to just 14 walks...In 21 starts, posted a 10-6 record with a 3.31 ERA (45 ER/122.1 IP) ... began the year in the bullpen - moved into the rotation full time May 8...His 0.96 walks per 9.0 innings pitched (13 BB/122.1 IP) led PCL starters ... his 11.92 baserunners per 9.0 innings pitched ranked fifth...Was 8-4 with a 3.62 ERA in 17 games prior to the All-Star break...Limited left-handed hitters to a .271 average (29-for-107), while righthanded batters hit .296 (121-for-409) off the southpaw...Enjoyed a stellar May, boasting a 4-1 ledger with a 2.00 ERA (8 ER/36.0 IP) while limiting hitters to a .219 batting average. 2008 J.R. was 9-5 with a 4.29 ERA (67 ER/140.2 IP) in 27 games (22 starts) with Triple-A Iowa, earning a spot on the mid-season Pacific Coast League All-Star squad ... in 22 starts, was 9-4 with a 4.30 ERA (61 ER/127.2 IP) and 65 strikeouts...Was 0-1 with a 4.15 ERA (6 ER/13.0 IP) in five relief appearances...Struck out 73 while walking 32 and limited opponents to a .281 batting average (156-for-556) ... had a six-game winning streak, May 9-July 3...Went 6-3 with a 3.57 ERA (37 ER/93.1 IP) in 19 games (14 starts) prior to the All-Star break ... struck out 44 while walking 23 during the stretch...Pitched in seven games (three starts) for Leones del Caracas of the Venezuelan Winter League, going 2-3 with a 2.63 ERA (7 ER/24.0 IP). 2007 Was 10-8 with a 3.27 ERA (58 ER/159.2 IP) in 27 starts with Double-A West Tenn ... struck out 114 while walking just 31 in 159.2 innings ... tossed three complete games and was named to the mid-season Southern League All-Star Game. 2005 J.R. went 11-8 with a 4.49 ERA (66 ER/132.1 IP) in 24 starts with Single-A Daytona ... struck out 97 while walking 37 in 132.1 innings ... went 7-2 with a 2.97 ERA (25 ER/75.2 IP) in 12 home starts ... was 1-0 with a 1.04 ERA (3 ER/26.0 IP) in four April starts. 2004 J.R. began his professional career pitching three games for Rookie-League Mesa and 12 games (eight starts) for Single-A Boise ... combined to go 4-0 with a 3.64 ERA (24 ER/59.1 IP) while striking out 60 hitters compared to 11 walks.