American League Leaders: 7th-SO/9.0 IP (9.16). Established career highs in IP (165.0), strikeouts (168), starts (28), quality starts (17), strikeouts per 9.0 IP (9.16) and losses (10) and tied his career high with nine wins in his second season with the White Sox. His 307 career strikeouts are the most by a White Sox pitcher in his first 54 career games. Limited left-handers to a .232 average (29-125) with two home runs and seven RBI (right-handers hit .283/21/70) … surrendered just eight extra-base hits overall to lefties … opponents went just 15-71 (.211) with RISP/two outs. Went 7-3 with a 3.45 ERA (28 ER/73.0 IP) over 12 starts in the second half, compared to 2-7 with a 4.50 mark (46 ER/92.0 IP) prior to the break. Was 3-0 with a 1.47 ERA (5 ER/30.2 IP) over five starts in August and 2-0 with a 0.71 ERA (1 ER/12.2 IP) in two starts during interleague play. Suffered the loss in his season debut on 4/6 at Oakland despite allowing just two runs with six strikeouts and one walk over 7.0 IP … earned his first win on 4/13 at Minnesota, allowing just three hits over 6.0 scoreless IP. His streak of 11 straight quality starts ended on 4/18 vs. the Angels when he gave up five runs on six hits over 0.1 IP, the shortest start by a Sox pitcher since Neal Cotts on 8/28/03 at Yankee Stadium (also 0.1 IP). Went 0-3 with a 6.06 ERA (22 ER/32.2 IP) over six starts from 4/18-5/17 … received a no decision in his next outing on 4/23 vs. Texas despite allowing just two runs over 6.2 IP. Allowed a career-high 12 hits over 6.2 IP in a no decision on 5/10 at Texas … ended his six-start winless stretch on 5/22 vs. Kansas City, allowing two runs over 6.2 IP. Went 0-4 with a 4.50 ERA (26 ER/52.0 IP) over a nine-start winless stretch from 5/28-8/6 … surrendered a career-high tying 12 hits over 5.0 IP on 7/5 vs. the Yankees Was placed on the 15-day disabled list on 7/9 (retro to 7/6) with a sprained left wrist … made one rehab start with Class AAA Charlotte before being reinstated on 7/31. Started that afternoon at Minnesota, suffering the loss after allowing five runs on eight hits and two home runs with two walks and eight strikeouts over 6.1 IP in a losing effort. Went 5-0 with a 1.85 ERA (9 ER/43.2 IP) and 40 strikeouts over seven starts from 8/6-9/9 (all quality) … his five-game winning streak from 8/12-9/9 was a career high. Snapped his nine-start winless stretch on 8/12 at Miami after allowing one run on three hits over 6.0 IP … his previous win came on 5/22 vs. Kansas City. Won his second straight decision on 8/23 vs. Philadelphia, allowing three hits over 6.2 scoreless IP … retired 10 straight Phillies from the second-fifth inning. Extended his winning streak to a career-best five games with a victory on 9/9 vs. Kansas City (1 ER/6.0 IP). Matched his career high in IP (8.0) and strikeouts (11) in a victory on 9/25 at Cleveland … surrendered just two hits and held the Indians hitless until the fifth … struck out the final three hitters in the eighth. Earned his ninth win in his final start on 9/30 vs. Minnesota, allowing three runs (two earned) on three hits with 10 strikeouts, including seven in a row to start the game, over 6.0 IP … reached the 300-mark in strikeouts and IP for his career. Matched Joe Cowley's club and American League record of seven consecutive strikeouts to open a game … also tied Cowley's Sox record (5/28/86 vs. Texas) for most consecutive strikeouts at any point in a game. Houston's Jim Deshaies (9/23/86 vs. the Dodgers) and the Mets' Jacob deGrom (9/15/14 vs. Miami) own the major-league record of eight strikeouts in a row to start a game (Elias). Including his previous start on 9/25 at the Indians, struck out 10 straight hitters, tied with Tom Seaver (April 1970) and Eric Gagne (May 2003) for the longest strikeout streak in the major leagues over the last 50 years (Elias).
Appeared in 26 games (23 starts) in his first season with the White Sox … started 2015 with Triple-A Charlotte. ... Ranked among the major-league rookie leaders in winning percentage (2nd, .600), wins (T3rd, 9), IP (5th, 139.1), strikeouts (5th, 139) and starts (T5th). ... His 139 strikeouts were the second-most by a White Sox rookie behind Gary Peters (189 in 1963). ... Made 16 quality starts and allowed two earned runs or less 16 times … posted a 3.07 ERA (26 ER/76.1 IP) on the road, compared to a 4.57 mark (32 ER/63.0 IP) at home. ... Went 5-2 with a 1.81 ERA (11 ER/54.2 IP) and .198 (38-192) opponents average over his final eight starts, compared to 4-4 with a 5.17 ERA (45 ER/78.1 IP) and .277 (83-300) opponents average over his first 15 starts. ... Was 3-1 with a 2.27 ERA (11 ER/43.2 IP) over eight games (six starts) vs. the American League Central and 4-1 with a 2.24 mark (14 ER/56.1 IP) and 58 strikeouts vs. the AL West. ... Limited left-handers to a .194 average (27-139) with zero home runs and 41 strikeouts … lowered his opponents average from .267 (66-247) in the first half to .237 (64-27) after. ... Reached the 100-strikeout mark in 90.2 IP, the fastest in franchise history (STATS LLC). ... Prior to his major-league debut, threw just 34.1 IP in the minor leagues, the fifth-fewest by a White Sox pitcher since 1987 at the time of his debut. ... His contract was purchased from Charlotte on 4/20 … made his major-league debut on 4/21 vs. Cleveland, allowing two runs on three hits with three walks and one strikeout over 2.1 IP (60 pitches) … struck out Lonnie Chisenhall in the eighth inning for his first career strikeout … worked a perfect eighth inning in his second appearance on 4/29 at Baltimore. ... Earned his first major-league win in his first start on 5/9-2 vs. Cincinnati, allowing two runs with eight strikeouts over 6.0 IP. Was moved into the starting rotation on 5/12 … received a no decision on 5/15 at Oakland (5 ER/4.0 IP). ... Worked at least 6.0 IP with one or no runs allowed in four consecutive starts from 5/20-6/9 … became the first Sox rookie to accomplish the feat since Bruce Howard went five straight in 1964-65 (STATS LLC). ... Allowed just one run with 10 strikeouts over 6.0 IP on 6/4 at Texas but received his fourth straight no decision … at 22 years and 176 days old, became the youngest White Sox pitcher to strike out 10 or more batters since Jason Bere (22 years, 117 days) fanned 12 on 9/20/93 at California (Elias). ... Threw 6.0 scoreless IP for his second win on 6/9 vs. Houston … suffered his first career loss on 6/15 at Pittsburgh after allowing seven earned runs on nine hits over 3.2 IP. Earned his third win, and snapped the White Sox eight-game losing streak, on 6/20 vs. Texas (2 ER/6.0 IP). ... Received a no decision on 7/10 at Wrigley Field despite allowing just two hits with six walks over 6.0 scoreless IP … the last White Sox to issue six-plus walks without allowing a run was Jose Contreras (6.2 IP) on 9/2/07 at Cleveland. ... Scattered five hits with zero walks and nine strikeouts over 6.2 scoreless IP in a win on 7/26 at Cleveland. ... Allowed three runs or less in each of his final eight starts from 8/11-9/25, going 5-2 with a 1.81 ERA (11 ER/54.2 IP), 49 strikeouts and eight quality starts. ... Earned the win on 8/11 vs. the Angels, allowing just four hits with one walk and a career-high 11 strikeouts over 7.0 IP … the 11 strikeouts were the most by a White Sox rookie since Jason Bere fanned 12 on 9/20/93 vs. California. ... Became the fourth Sox rookie to record 10 or more strikeouts at least twice in a season, joining Bere (twice 1993), Gary Peters (twice in 1963) and Jack Harshman (three times in 1954). ... Became the fifth rookie in club history to strike out 11 during a scoreless outing, joining Frank Lange (1910), Harshman (1954), Peters (1963) and Bere (1993) and second in MLB this season (San Francisco's Chris Heston, no-hitter on 6/9 vs. the Mets). ... Suffered the loss on 8/17 at Angel Stadium despite throwing his first career complete game (2 ER/8.0 IP) … became the first White Sox rookie to go the distance since Zach Stewart on 9/5-2/11 at Minnesota and first rookie left-hander since Wilson Alvarez on 9/1/91 vs. Cleveland. Finished the season on a three-game winning streak from 9/8-25 … surrendered just four earned runs with 16 strikeouts over 20.2 IP … allowed one earned run in consecutive starts on 9/8 vs. Cleveland (7.0 IP) and 9/19 at the Indians (7.2 IP) … won his final start on 9/25 at Yankee Stadium (2 ER/ 6.0 IP). ... Entered the season ranked by Baseball America as the No. 1 Prospect in the White Sox organization … also tabbed by the same publication as possessing the Best Slider.