Full name is Jesse Allen Hahn…resides in Groton, Conn., with wife, Jessica ... Graduated from Fitch High School (Conn.), where he also played basketball for two years and football for one…in 40.0 innings pitched as a senior, went 5-1 with 65 strikeouts (14.6 K/9) and just six walks, with one no-hitter and three one-hitters…set a state record by posting a 0.17 ERA (min. 35.0 IP)…earned Pitcher of the Year, all-state, all-area and All-Eastern Connecticut Conference honors ... Attended Virginia Tech, where he pitched three seasons for the Hokies…enjoyed his best season as a junior (2010), going 5-4 with a 3.70 ERA in 13 starts.
Spent a majority of the season on the 60-day Injured List, recovering from ulnar collateral ligament (UCL) repair surgery in 2018…but made six relief appearances over the final month of the season, going 0-1 with a 13.50 ERA (7 ER in 4.2 IP) ... Worked a scoreless eighth inning vs. Detroit on Sept. 5, which marked his first Major League appearance since June 28, 2017 at Houston (with Oakland) ... Also pitched a scoreless inning vs. Miami on Sept. 8, before allowing runs in three of his final four outings ... Went 0-1 with a 2.45 ERA (1 ER in 3.2 IP) with two walks and six strikeouts in four combined outings (3 starts) between Wilmington (A+) and Surprise (Rookie) as part of a rehab assignment (Aug. 21-Sept. 3).
Did not pitch in the Major Leagues after suffering a sprained ulnar collateral ligament (UCL) during spring training…placed on the 60-day disabled list on March 6...Made six appearances across three rehab assignments in July and August, tossing 6.0 scoreless innings, allowing four hits, two walks and four strikeouts...Acquired by the Royals with RHP Heath Fillmyer from Oakland in exchange for LHP Ryan Buchter, INF/OF Brandon Moss and cash considerations, Jan. 29.
Went 1-2 despite a 2.74 ERA (13 ER in 42.2 IP) over his first seven appearances (six starts), including a loss at Kauffman Stadium on April 13 with Oakland, in which he allowed three runs on six hits in 6.0 innings, with a seasonhigh seven strikeouts ... Allowed nine runs (eight earned) over his next two starts (7.0 IP) before being placed on the 10-day DL on May 27 with a strained right triceps ... Made one rehab start at Stockton (A), before returning to Oakland on June 6…held Toronto to one unearned run over 6.0 innings in a 4-1 win the same day, but went 1-2 with a 12.86 ERA (20 ER in 14.0 IP) over his next four starts ... Optioned to Nashville (AAA) on July 2, where he went 2-0 with a 4.32 ERA (12 ER in 25.0 IP) in six appearances (five starts) to end the season ... Recorded 8.0 shutout innings on April 25 at the Angels, allowing just one hit and two walks, but got the no-decision in a 2-1 A's loss in 11 innings…became first A's pitcher to get a no decision despite throwing at least 8.0 scoreless innings and one or zero hits ... Held opponents to just four home runs in 69.2 big league innings…no AL pitcher allowed fewer HR in more innings…had a streak of 49.2 consecutive innings in the Majors without allowing a HR, from the sixth inning on April 19 through the first inning on June 22.
Had four separate stints with the A's and went 2-4 with a career-high 6.02 ERA in nine starts…also had career highs in opponents batting average (.313), on-base percentage (.376) and slugging percentage (.484)…allowed a career-high eight home runs in 46.1 innings (1.55 per nine innings) after surrendering nine home runs in 170.0 innings over his first two seasons (0.48 per nine innings)…struck out just 23 batters (4.47 per nine innings) and walked 19 for a strikeout-to-walk ratio of 1.21, which was the lowest in the American League and fifth lowest in the majors among pitchers with 40 or more innings pitched… his opponents batting average included a mark of .273 (27-for-99) against right-handed hitters comparedto .361 (30-for-83) against left-handers…surrendered seven of his eight home runs to lefties and had a .663 slugging percentage against lefties, .333 against righties…his career splits are .211 (85-for-402) against righties, .281 (117-for-416) with 14 of his 17 home runs against lefties…has a .438 career slugging percentage against lefties, .274 against righties…had a .226 opponents average over his first 30 pitches in a game, .358 after that…opponents hit .426 with a .449 on-base percentage and .681 slugging percentage when leading off an inning…in 2015, his marks were .215, .277 and .290 respectively…allowed a .324 batting average with runners in scoring position, including .500 with RISP and two outs…five of the eight home runs he surrendered were solo shots…yielded a .300 average with two strikes and a .440 average to the first hitter in the batting order…went 2-1 with a 3.03 ERA and .237 opponents batting average in five starts at home, 0-3 with a 13.17 ERA and .453 opponents average in four starts on the road…in two seasons with the A's, he is 5-4 with a 3.06 ERA (32 er in 94.0 ip) in 15 starts in Oakland, 3-6 with a 6.43 ERA (35 er in 49.0 ip) in 10 starts on the road…was 2-1 with a 3.90 ERA and .234 opponents average in five starts during the day, 0-3 with a 9.92 ERA and .427 opponents average in four starts at night…his career splits are 8-3 with a 2.31 ERA (24 er in 93.1 ip) in 15 day games, 7-11 with a 4.98 ERA (68 er in 123.0 ip) in 24 night games…opponents were successful in each of their seven stolen base attempts off him after going 5-for-9 (55.6%) over his first two seasons…the A's were 5-4 (.556) in his starting assignments…tossed more than six innings in just three of his nine starts…has done that in just 11 of 37 starts in his career…the bullpen blew a save in three of his nine starts.
Went 6-6 with a 3.35 ERA in 16 starts in his first season with Oakland, a campaign that was cut short due to an injury…got off to a slow start as he went 1-4 with a 4.43 ERA over his first eight starts through May 20…then tossed a four-hit shutout May 25 against Detroit and went 5-2 with a 2.42 ERA over his final eight starts…was placed on the disabled list July 11 retroactive to July 6 with a right forearm strain and missed the remainder of the season…yielded just five home runs in 96.2 innings, an average of 0.47 per nine innings…that was the lowest mark in the American League among pitchers with 90 or more innings pitched…using the same minimum, he also ranked third in the AL in opponents slugging percentage (.324) and fifth in OPS (.623)…has now surrendered nine home runs in 170.0 career innings (0.48 per nine innings)…six of those nine home runs have come with runners on base…opponents reached base on an error 14 times, which was the most in the majors, despite missing half of the season…it tied for second most by an A's pitcher over the last 29 years to Tim Hudson's 15 in 2001… tied for fifth in the AL in unearned runs allowed (10)…allowed a .238 opponents batting average, which included a .185 (33-for-178) mark against right-handed hitters compared to .286 (55-for-192) against left-handers…now has a .191 (58-for-303) career average against righties…has surrendered seven of his nine career home runs to lefties…yielded a .215 batting average, .277 on-base percentage and .290 slugging percentage to batters leading off an inning…however, opponents hit .318 with runners in scoring position.…surrendered three of his five home runs in the sixth inning when he had an 8.74 ERA…had a 2.64 ERA in all other innings…went 4-1 with a 1.52 ERA and .169 opponents batting average in six starts during the day compared to 2-5 with a 4.72 ERA and .284 opponents average in 10 starts at night… his career numbers are 6-2 with a 1.56 ERA (11 er in 63.1 ip) during the day, 7-8 with a 4.22 ERA (50 er in 106.2 ip) at night…went 5-4 with a 2.94 ERA in 10 starts on four days rest, 1-2 with a 4.18 ERA in six starts on five days rest or more…is 9-4 with a 2.81 ERA (30 er in 96.0 ip) in 15 career starts on four days rest compared to 4-5 with a 3.69 ERA (29 er in 70.2 ip) in 13 starts on five days rest or more…was 2-0 with a 1.42 ERA in two starts against National League competition and is now 3-1 with a 1.78 ERA (5 er in 25.1 ip) in four career interleague starts…walked two batters or fewer in 14 of his 16 starts but tossed six innings or fewer 11 times…has tossed more than six innings in just eight of his 28 career starts.
Made his Major League debut with San Diego and went 7-4 with a 3.07 ERA in 14 games, including 12 starts, over four stints with the Padres…tied for third among National League rookies in wins, ranked sixth in strikeouts (70), tied for ninth in games started and 10th in innings pitched (73.1)…surrendered just four home runs in 73.1 innings, an average of 0.49 per nine innings…allowed a .214 opponents batting average, which included a .200 (25-for-125) mark against right-handed hitters compared to .227(32-for-141) against left-handers…did not yield a home run to any of the 153 right-handers he faced and had a .256 opponents slugging percentage against righties…all four of the home runs he allowed came with runners on base…opponents hit .211 with runners in scoring position, including .185 with RISP and two outs…went 7-2 with a 2.01 ERA over his first nine starts, 0-2 with a 5.95 ERA over his final five games, including three starts…compiled a 4-0 record and a 2.56 ERA in ve starts on four days restcompared to 3-3 with a 3.28 ERA in seven starts on ve days rest or more…had a 2.14 ERA over the first five innings of a game, 6.75 from the sixth inning on…was 7-3 with a 2.96 ERA and .199 opponents batting average in his 12 starting assignments, 0-1 with a 5.40 ERA in two relief appearances…inherited three runners in his two relief appearances and allowed all three to score…first batters faced were 0-for-1 with a walk…the Padres were 9-3 (.750) in his starting assignments
Spent the majority of the season with Single-A Charlotte in the Rays organization, making 20 starts total and going 2-1 with a 2.09 ERA (16 ER, 69.0 IP) with 67 strikeouts against 18 walks...Named a Florida State League mid-season All-Star...Began the season with Single-A Charlotte and made 19 of his 20 starts for the Stone Crabs, outside of one rehab start for the organization's Rookie-Level Gulf Coast League affiliate...Over his 19 starts for Charlotte, allowed a .218 (55-for-252) opponent average…allowed just one home run over his 67.0 innings and 19 starts for the Stone Crabs.
Made his professional debut with Single-A Hudson Valley with 14 starts for the Renegades...Named New York-Penn League pitcher of the week for back-to-back weeks ending in August 20 and August 27.
Missed the entire season while recovering from Tommy John surgery on his right elbow.
Signed by the Rays as a sixth-round selection out of Virginia Tech University before undergoing Tommy John surgery on his right elbow...Tommy John surgery performed by Dr. James Andrews in August 2010.