CAREER BESTS
| Event | Time | Date | Site/Opponent |
| 50 Free | 22.69 | 2/19/15 | Big Ten Championship |
| 100 Free | 49.96 | 2/23/13 | Big Ten Championships |
| 200 Free | 1:55.15 | 12/6/13 | Texas Invitational |
| 100 Fly | 55.15 | 2/22/13 | Big Ten Championships |
2014-15 (Senior Year)
Anchored school record setting performance in the 200 freestyle relay (1:28.30) at the NCAA Championships (3/19) to earn honorable mention All-America honors with a 12th-place finish … Named second-team All-Big Ten … Member of 200 free relay team that placed second at Big Ten Championships (2/18-21) in a then-school record time of 1:28.50 … Primarily competed in the 50 and 100 freestyles individually, ranking fourth on the team in the 50 … Swam a personal-best 22.69 (NCAA ‘B’ cut) in the 50 free prelims at Big Tens, ultimately placing 10th in the finals in 22.71 … Also swam season bests in the 100 free (50.50) and 100 butterfly (55.24) in the same meet … Earned a pair of dual meet victories against Villanova (22.63, 10/31) and Rutgers (23.40, 1/16-17) in the 50 free.
2013-14 (Junior Year)
Competed in six meets and the Big Ten Championships as an individual and appeared in the NCAA Championships as a member of a relay team ... Ranked third on the team in the 50 free and the 100 free ... Helped the 200-yard freestyle relay team to a time of 1:29.83 at the NCAA Championships (3/20), the team's second best time of the season in that event ... Participated in the 50 free, 100 free and 100 fly at the Big Ten Championships (2/19-22) ... Helped the 200-yard medley relay squad to a school-record time of 1:37.61 at the Big Ten Championships ... Member of the 200-yard freestyle relay team and the 400-yard freestyle relay team that each put together NCAA "A" qualifying marks in the Big Ten Championships with times of 1:29.51 and 3:16.33, respectively ... Individually, posted a career-best time of 22.94 in the 50 free and a season-best mark of 50.36 in the 100 free at the conference championships ... Competed in the 200-yard freestyle event for the only time at the Texas Invitational (12/6) ... Had her best 100 fly time of the season at the Texas Invitational (12/5), touching the wall in 55.38.
2012-13 (Sophomore Year)
Competed in seven meets during the season ... Earned honorable mention All-America honors as a member of the 200 freestyle relay ... Swam the 50 free, 100 free and 100 fly and was a member of the 200 and 400 freestyle relay teams at the Big Ten Championships ... Ranks third on the team in 50 free, fourth in the 100 free and fifth in the 100 butterfly ... Member of the 200 freestyle relay squad that set a school record at the Big Ten Championships (2/21-2/23), placing second with a time of 1:28.96 ... Swam the third leg for the runner-up 400 freestyle relay team at the Big Ten Championships ... Registered personal-best times in all three of her events at the Big Ten Championships, posting times of 22.98 in the 50 free, 49.96 in the 100 free and 55.15 in the 100 fly.
2011-12 (Freshman Year)
Swam in all nine of the team's competitions ... Ranked third on the team in the 100 butterfly ... Competed in three preliminaries at the Big Ten Championships ... Posted season-best times of 2.18 in the 50 freestyle and 52.00 in the 100 freestyle ... Also swam 56.18 in the 100 butterfly at the conference championships ... Swam a season-best 56.12 in the 100 butterfly at the Ohio State Invitational (12/2-4) to finish seventh overall ... Also placed seventh in the 50 freestyle at the Ohio State Invitational in a time of 23.52 ... Posted a time of 23.92 in the 50 freestyle in a tri-meet versus Lehigh and St. Francis (Pa.) (2/4).
High School
Was a four-year letterwinner at Hershey High School under head coach Greg Fastrich ... Helped lead team to consecutive conference titles in 2008-10 ... Team finished as AAA runner-up at PIAA Championships in 2008 and 2010 ... Conference champion in 200 IM and 100 fly in 2010 ... First place in 50 free and second in 100 free at the District meet ... State Champion in 50 free and 200 medley relay, placed sixth in 100 free ... Won State Championship in 400 free relay in 2008 ... Qualified for NCSA Junior Nationals in 2008, 2009 and 2010.
Personal
Full name is Katelyn Miller ... Born in Hershey, Pennsylvania on May 12, 1993 ... Mother is Margaret Miller ... Has three sisters, Erin, Meghan and Shannon ... Mother attended Penn State.