Rex Riley has broken three MIST long course team records so far this summer, and four MIST girls broke the short course 11-12 free relay record. Jordan Nuzback, Lexi Pierce, Mary Claire Stark and Megan Moholic swam a 1:53.11 in the 200 free relay at the Kahkwa dual meet to break the 2005 mark of 1:54.76 set by Lauren Szoszorek, Kelsey Rzymek, Lauren Kozuchowsky, and Kesley Ferrante.
Rex Riley broke the 100m and 200m breaststroke records both held by Andrew Steehler. Steehler went 1:09.10 and 2:37.97 in 2012. At the Senior Circuit meet at the University of Pittsburgh, Riley swam 1:08.37 and 2:34.55. Ath the same meet, Riley swam a 2:19.18 in the 200m IM to break Greg VanVolkenburg's 2:20.56 standard from 2002.