Dean Allen Kiekhefer…attended Oldham County (KY) High School…played college baseball at the University of Louisville...started the opening game of the 2009 Fullerton NCAA Super Regional against #3 Cal State-Fullerton in 2009 but took the loss...pitched for Wareham Gateman in the Cape Cod League and earned the Francis Tripp Award in 2009 for positive impact to the organization on and off the field.
Began the season at Double-A Pensacola in the Cincinnati Reds organization but finished it in the majors with Oakland…was selected from Triple-A Nashville Sept. 1 and allowed four runs in 2.0 innings over four relief appearances with the A's (18.00 ERA)…opponents were 7-for-12 (.583) with a walk (.615 on-base percentage), two doubles and a home run (1.000 slugging percentage)…left-handed hitters were 1-for-3 (.333), right-hander 6-for-9 (.667)…allowed 1-for-2 (50.0%) inherited runners to score…first batters faced were 4-for-4 with two doubles …allowed a single to the only batter he faced Sept. 4 against New York (AL)…it was his first outing in the majors since Oct. 2, 2016 against Pittsburgh…combined for an 8-1 record, three saves and a 3.39 ERA in 45 minor league appearances, including one start, with three teams…the eight wins were a career high and tied for seventh in the A's farm system…walked just eight batters in 58.1 innings, an average of 1.23 per nine innings…struck out 51 for a strikeout-to-walk ratio of 6.38… allowed a .279 opponents batting average, which broke down to .184 (18-for-98) against lefthanded hitters compared to .348 (47-for-135) against right-handers…yielded three of his four home runs with runners on base…opponents hit .242 with runners in scoring position, including .207 with RISP and two outs…converted 3-of-4 (75.0%) save opportunities…allowed 6-of-23 (26.1%) inherited runners to score…combined for a 6.33 ERA in the sixth and seventh innings… had a 1.82 ERA from the eighth inning on.
MINORS: Began the season at Pensacola and had a 1.13 ERA and .233 opponents batting average in eight relief appearances before he was released on April 26…the only run came in his final outing April 25 against Birmingham, snapping a season-opening 7.2-inning scoreless streak…signed a minor league contract with the A's May 3 and was assigned to Double-A Midland…converted all three of his save opportunities in five appearances with the RockHounds and had a 3.18 ERA and .348 opponents batting average in five games when he was promoted to Triple-A Nashville May 19…went 8-1 with a 3.83 ERA in 32 games, including one start, with the Sounds…did not walk a batter in his first 17 games (20.1 innings)…had a 1.59 ERA over his first seven games at Triple-A… then allowed a season-high four runs on a season-high tying four hits and did not retire a batter on June 11 against Tacoma…compiled a 2.11 ERA over an 18-game stretch from June 23 to Aug. 19…finished June with a 4-0 record but had a 6.08 ERA and .350 opponents batting average in 10 appearances…made his only start of the season July 13 at Iowa…struck out a season-high four batters in a season-high tying 3.0 innings…it was one of five outings of 3.0 innings…also issued two walks, his only outing with more than one walk…tossed 3.0 innings in each of his next two outings on July 17 against Omaha and July 21 in the second game of a doubleheader against Oklahoma City…did not allow a home run over his first 31 games (37.0 innings)…then allowed all four of his home runs over a 12-game stretch from July 17 to Aug. 22 (16.1 innings)…won each of his first eight decisions with Nashville before he was charged with his only loss in his final outing on Aug. 29 at New Orleans.
Spent the entire season on the Triple-A Memphis roster where he made 49 relief appearances and just the second start of his minor league career (7/5 at Colorado Springs) and first since his first professional season in 2010…Led Memphis and ranked T10th in the Pacific Coast League with 50 appearances…Named to the Pacific Coast League Mid-Season All-Star team after teammate Sam Tuivailala's promotion to St. Louis. Pitched a scoreless inning and retired the side on 10 pitches…His 59.2 innings pitched led the Memphis relief squad…Retired the first batter faced in 38 of 49 relief appearances (79%)…Had 14 straight scoreless appearances (14.2 IP) from 5/10-6/17…Pitched a season high 3.2 innings in his start at Colorado Springs on 7/5, his longest outing since pitching 4.0 innings in relief on 6/29/10 vs. Wisconsin…Made nine relief appearances for Surprise in the Arizona Fall League. Was 1-1 with a 2.93 ERA and two saves over 15.1 innings, surrendering only one walk, one home run and had 14 strikeouts. Led the Arizona Fall league in WHIP (0.78) and was T7th among AFL save leaders.