A member of Chicago's Opening Day roster, Hart went 2-1 with a 5.06 ERA (9 ER/16.0 IP) in 10 relief appearances for the Cubs, walking 10 and striking out 13. Opponents batted .262 off him, including a .222 mark against right-handed hitters. He collected his first two big league wins, April 5 vs. Houston and April 9 at Pittsburgh, before he was optioned to Iowa May 2.
In six starts at the Triple-A level, he has a 1-1 mark with a 3.81 ERA (11 ER/26.0 IP), limiting the opponent to a .221 batting average including a .167 mark against right-handed batters. In 26.0 innings of work, he struck out 33 (11.4 strikeouts per 9.0 IP) while walking nine. In his most recent appearance May 29 vs. Memphis, Hart went a season-high 6.1 innings, allowing two earned runs on four hits and three walks while striking out nine.
All told, Hart owns a 2-1 record with a 3.33 ERA (10 ER/27.0 IP) in 18 career relief appearances for Chicago since making his major league debut September of last season.
Hoffpauir, 28, batted .421 (8-for-19) with three doubles and a RBI in 11 games for the Cubs since making his major league debut after he was selected from Iowa May 18. He began his season with Iowa, batting .324 (11-for-34) with three home runs, 12 RBI and a .676 slugging percentage in nine games after missing the first month with a strained left oblique.