2019: Owned a 2-4 record on the mound his junior season, making a team-high 16 starts … recorded a 9.2 scoreless innings streak to begin the season … notched a perfect outing in his first appearance of the season on Opening Day against Lehigh (2/15), working 2.0 hitless innings while striking out every batter he faced … made his first career ACC start in the series finale at Virginia (3/10), working 4.2 innings, allowing only one unearned run on two hits and two walks … tossed a career-high 6.0 innings in the series finale with Louisville (3/17), allowing four runs (three earned) on six hits, while collecting one strikeout … posted a scoreless outing on the mound in game two of the series at Boston College (4/27), working 4.1 scoreless innings, allowing three hits and four walks while striking out two … earned the start in the regional final of the NCAA Morgantown Regional against Texas A&M (6/2), covering 4.2 frames, scattering one earned run on seven hits and one walk while recording three punchouts to help Duke to a regional championship.
2018: Made 16 appearances with seven starts ... Tied for the team lead with six wins ... Posted a 6-1 record and 4.72 ERA ... Struck out 36 batters in 34.1 innings ... Issued 11 walks and limited opponents to a .228 batting average ... Earned the win against Longwood (March 7), Yale (March 14), Maryland Eastern Shore (March 21), Campbell (April 4), Davidson (April 10) and Liberty (May 8) ... Made his first career start March 14 against Yale ... Also made starts against Maryland Eastern Shore, Campbell, Davidson, East Carolina, Liberty and Georgia ... In seven starts, posted a 5-1 record and 2.59 ERA while limiting opposing hitters to a .159 batting average.
2017: Made 15 relieft appearances ... Went 0-1 with a 5.87 ERA ... Allowed 10 earned runs in 15.1 innings ... Struck out 12 and walked eight ... Made his collegiate debut Feb. 17 versus Gonzaga, tossing 1.1 scoreless frames ... Threw a season-high four shutout innings March 8 against Mount St. Mary's ... Also struck out a season-high four batters versus Mount St. Mary's.
High School: Four-year letterwinner at St. Augustine Prep in Richland, N.J. ... 2016 Rawlings-Perfect Game Honorable Mention All-American ... Northeast - All Region First Team selection ... Rated among Perfect Game’s top 500 overall prospects in the class of 2016 as well as the No. 85 left-handed pitcher ... Also rated the No. 18 overall prospect and No. 4 left-handed pitcher in the state of New Jersey ... 2015 Perfect Game Underclass High Honorable Mention selection ... Went 6-4 in 2015 with a 2.00 ERA ... Pulled in second team all-conference honors in both 2014 and 2015 ... Named a 2015 Daily Journal All-Star ... As a sophomore, posted a 7-0 record and 1.60 ERA ... Tabbed 2014 Underclass Honorable Mention ... Member of the National Honor Society.
Personal: Born William Guy Chillari on August 22, 1997 in Vineland, N.J. ... The son of William and Wendy Chillari ... Has one older sister (Nicole).