|High School:||St. Ignatius|
- 2011 Preseason Second Team All-Southern Conference selection
- 2010 Walt Nadzak Southern Conference Tournament Most Outstanding Player
- 2010 All-Southern Conference Tournament Team selection
- 2010 Southern Conference Player of the Month (May)
- 2010 Southern Conference Player of the Week (May 24)
2011: Started all 56 games at first base for the second consecutive season… batted .303 with 40 runs scored, 66 hits, 14 doubles, one triple, two homers, 17 stolen bases, 18 walks and 33 RBI… second on the team in doubles and tied for third in hits, runs, stolen bases and RBI… third on the team with 18 multi-hit games… tied for third on the team with eight multi-RBI games… collected a season-high nine-game hit streak from 4/23 to 5/10… reached base in 14 consecutive games from 2/26 to 3/20… hit .331 (40-for-121) in SoCon action with 17 RBI and a team-high 12 stolen bases… best game at Furman (4/17) when he went 3-for-5 with three runs scored and tied a career-high with five RBI that included a pair of homers, including the game-winning two-run blast in the top of the tenth inning… hit .500 (7-for-14) in the Furman series overall (4/15-4/17)… went 2-for-5 with three runs scored, an RBI and a double in the 17-14 comeback win over College of Charleston (4/9)… walked twice and went 2-for-2 against the Cougars (4/10) in the series finale… scored twice, stole a base and went 2-for-4 at No. 3 South Carolina (3/30)… picked up three RBI and went 2-for-3 with two runs and a double against Charleston Southern (3/29)… opened the series at Georgia Southern (4/2) going 2-for-4 with a double and two RBI to go along with a stolen base… matched a season-high in hits going 3-for-5 vs. Davidson (3/18)… went 2-for-4 with four RBI and two doubles against Gardner-Webb (2/20)… hit .500 (6-for-12) with five runs scored in the Presbyterian series (4/30-5/1)… doubled, scored and picked up an RBI against Elon (5/8) in a 2-for-6 effort… racked up three hits in four at-bats at Western Carolina (5/20) in the final weekend of the season.
2010: Named the Walt Nadzak Most Outstanding Player of the SoCon Tournament... selected SoCon Player of the Month in May... started all 65 games at first base.... led the team in stolen bases going 24-for-27 on the season and was fourth in the SoCon... 13-game hitting streak from 5/12 to 6/4 was tied for the longest hitting streak on the team all season... batted .335 with 49 runs, 12 doubles, five homers and 38 RBI... second on the team with 32 walks... named SoCon Player of the Week on May 24... second on team with 25 multiple-hit games... also had nine multiple-run games and seven multiple-RBI games... led the team with three game-winning hits... went 2-for-4 with three RBI at series-opener at Elon (3/19), followed by a 3-for-5 performance with a run, a walk and two RBI in game two against the Phoenix (3/20)... went 2-for-5 with a pair of runs and a double in the series opener vs. Appalachian State (3/26)... batted .467 (7-for-15) in the Wofford series... in the opener at Wofford (4/2), went 3-for-4 with a pair of doubles... went 2-for-5 with an RBI in game two against the Terriers (4/3)... had the game-winning RBI single in the top of the 10th in the finale at Wofford (4/4) as he went 2-for-6 in the game with a run and an RBI in the Bulldogs' 8-7 win... hit first career homer at Charleston Southern (4/6) as he went 1-for-3 with two runs, two walks and an RBI.... at Winthrop (4/7), went 2-for-6 with a run, an RBI and a double in The Citadel's 10-8 win in 11 innings... in game two of doubleheader with Davidson (4/24), went 3-for-3 with a run, an RBI, a sac fly and a stolen base in the win... went 3-for-5 in series opener vs. Indiana State (4/9) including the game-winning RBI single in the bottom of the ninth... best game of the season came against Furman (4/17) when he went 2-for-4 with a career-high five RBI and hit his first career grand slam in the win... his RBI sac fly against Furman (4/18) in the bottom of the ninth gave the Bulldogs a sweep of the Paladins... racked up a career-high four runs at Samford (5/1) as he went 2-for-4 with a walk and two stolen bases in the game... went 3-for-5 with a pair of runs in the finale at Samford (5/2)... in series opener vs. UNC Greensboro (5/14), went 1-for-2 with three runs, two walks and two stolen bases.... batted .500 in Georgia Southern series and homered in all three games... went 3-for-5 with a run and two RBI in the opener against the Eagles (5/20)... went 2-for-3 with a run and a pair of RBI in the finale at GSU (5/22)... named SoCon Tournament MVP after going 7-for-15 (.467) with five runs, three walks, five stolen bases and seven RBI and registering a hit in all four tournament games... had a hit in every game of the Bulldogs' 13-game winning streak at the end of the season... hit safely in 14 of the final 15 games to end the year... recorded a .989 fielding percentage.
2009: Played in 19 games, started in one... recorded two RBI and two hits, including a double against Appalachian State  (3/15)... one sacrifice fly and one sacrifice bunt registered... no errors on the season.
High School: Graduated from St. Ignatius High School in 2008... received two letters in baseball.
Personal: Justin Klarich Mackert... born on April 18, 1990 in Mayfield Heights, Ohio... son of Brian and Kathy Mackert... chose The Citadel over Michigan State, Ohio State and Kent State... grandfather was a professional boxer who was also drafted by the Pittsburgh Pirates... grew up next door to Sandy Alomar, Jr.... majoring in health, exercise and sport science.