SENIOR SEASON (2011-12)
Posted the fastest 200 back times in the program in all four years of competition ... One of the senior leaders that helped guide the men's team to a fifth place finish at the SEC Championships ... Competed in every dual meet, the Tennessee Invitational and the SEC Championships ... Ends his LSU career with the program's second fastest 200 back mark (1:44.95) and the fourth lowest 100 back time (48.11) ... Captured the bonus final of the 200 back (1:45.06) and registered a 14th place finish in the 100 back (48.69) at the conference meet ... Carved out a fifth place finish in the 100 back (49.62) and a seventh place finish in the 200 back (1:48.94) at the Tennessee Invitational ... Touched the wall first in the 100 back (50.87) and finished in third in the 200 back (1:51.25) against Florida State ... Nabbed second in the 100 back (50.67) against Alabama ... Earned his fourth varsity letter.
JUNIOR SEASON (2010-11)
LSU's top 200 backstroker for the third straight year who also made tremendous strides in the 100 back ... Posted personal bests and top-five program times in both backstroke races ... Competed in every dual meet, Cougar Classic Invitational and SEC Championships ... Swam to a pair of top-16 finishes in the backstroke races at SEC's ... Delivered 10th in the 200 back with the second-fastest time in program history, 1:44.95 ... Recorded 11th in the 100 back with a top-five LSU mark of 48.11 ... Also placed 33rd in the 50 free (21.06) ... Won the 200 back at the Cougar Classic (1:47.34) and took second in the 100 back (50.01) ... Emerged victorious in the 100 back in a win over American ... Raced to second-place in the 200 back in a road victory over Alabama ... Swam to second in the 200 back and third in the 100 back in a home win over Incarnate Word ... Captured third in both backstroke events against Florida State ... Earned his third varsity letter.
SOPHOMORE SEASON (2009-10)
Proved to be the team's top 200-yard backstroker for the second straight season ... Competed in every dual meet, Houston's Cougar Classic Invitational and SEC Championships ... Earned 13th in the 200 back at SEC's with a mark of 1:46.81 ... Advanced to the 'B' final of that race with the fourth-fastest mark in school history, 1:46.26 ... Barely missed a second swim in the 100 back, placing 17th with the seventh-fastest mark all-time at LSU, 49.28 ... Also finished 33rd in the 200 free (1:42.36) ... Swam to a runner-up finish in the 200 back at the Cougar Classic and took sixth in the 100 back ... Won the 100 back in a win over Florida Atlantic ... Registered second in the 200 back at Alabama ... Notched third-place finishes in both backstroke races at Florida State ... Named the Most Improved Swimmer at the program's annual banquet ... Received his second varsity letter.
FRESHMAN SEASON (2008-09)
Solid contributor in backstroke races in his first year ... Held the team's fastest 200-yard backstroke time as a freshman ... Competed in every dual meet, Texas A&M's Art Adamson Invitational and SEC Championships ... Proved to be a pleasant surprise as an exhibition swimmer at SEC's ... Swam to a career-best time of 1:46.82 in the 200 back, fifth all-time at LSU ... Also posted a career-best of 49.41 in the 100 back, which is ninth-fastest in school history, and a personal best of 1:43.32 in the 200 free ... Reached the 'A' final of the 200 back at the Art Adamson Invitational, placing eighth with a mark of 1:49.83 ... Notched 12th in the 100 back at the same meet ... Captured runner-up honors in the 200 back at the LSU Invitational ... Took third in the 100 back at the same competition ... Secured third-place finishes in the 200 back in wins over both No. 18 Florida State and No. 24 Kentucky ... Earned his first varsity letter.
PRIOR TO LSU
International prospect who attended high school in Florida ... Specialized in backstroke races at the prep level ... Brings in top times of 51.12 and 1.51.25 in the 100 and 200 back events, respectively ... Coached by Michael Lohberg.
Born March 20, 1989 in Mechernich, Germany ... Parents are Hermann-Josef and Adelheid Diefenthal ... Has one brother, Tim ... Majoring in economics.
SIMON'S TOP TIMES
200 freestyle, 1:42.36, 2010 SEC Championships
100 backstroke, 48.11, 2011 SEC Championships
200 backstroke, 1:44.95, 2011 SEC Championships