2015: Recorded a 4.15 ERA in 4 appearances … Only gave up one extra-base hit all season … Pitched 4.1 innings giving up only 2 hits, 2 runs and recording four strikeouts … Struck out one in an appearance against Michigan (5/10) … Worked one inning, striking out one against Kansas (5/5) ... Pitched 2 shutout innings, only giving up one hit against New Mexico (2/14).

Prior to Northwestern: Played at Holy Cross from 2011-14 ... Appeared in 29 games on the mound with 18 starts ... Won six games and added two saves ... Recorded 67 strikeouts in 98.1 career innings ... Posted career highs in wins (3), strikeouts (29) and innings (38.2) in 2014 ... Named Patriot League Pitcher of the Week on April 28, 2014 after coming two outs shy of throwing a no hitter against Bucknell ... Added career-high six strikeouts in that game ... Earned a save in his first collegiate appearance against UMass ... Member of the Patriot League Academic Honor Roll in 2013 and 2014 ... Graduated with a degree in economics.

High School: Played two years of varsity baseball as a pitcher and utility player under head coach Matt Chess at Torrey Pines H.S. ... Named Falcon of the Year (2009) ... All-Avocado League honorable mention (2009 and 2010) ... Named to the San Diego Union-Tribune All-Academic Team ... Registered a perfect career record of 7-0, ranking first in his high school record books with a 1.000 winning percentage ... Also recorded a career ERA of 2.71 with 61 strikeouts in 78 innings pitched ... Team was crowned 2009 Avocado League champions ... Selected to the Tampa Bay Rays Southern California Scout Team ... Also played one year of varsity water polo ... Torrey Pines Scholar Athlete (2009 and 2010).

Personal: Son of Jim and Lynne Walker ... Has one brother (Cole) ... Attended same high school as Northwestern juniors Reed Mason and Jack Mitchell.