Last updated and checked on February 27, 2024.
50-Yard Freestyle — :19.76, Ryan Held, Springfield (Sacred Heart-Griffin), 2014 (finals)
50-Yard Freestyle for Athletes with Disabilities —:24.07, Dylan Early, Chicago (Brother Rice) (B), 2018
:32.21, Noah Thomas, Arlington Heights (Hersey) (A), 2022
100-Yard Freestyle — :43.15, Brady Johnson, West Chicago (Coop), 2024 (finals)
100-Yard Freestyle for Athletes with Disabilities —:54.60, Dylan Early, Chicago (Brother Rice) (B), 2018
1:20.17, Trevor Tucci, Normal (Community) (A), 2018
200-Yard Freestyle — 1:34.49, Luke Mauer, Wilmette (Loyola Academy) 2019
200-Yard Freestyle for Athletes with Disabilities — 2:04.31, James Bockover-McCormick, Rockton (Hononegah) (B), 2017
2:03.04 Ryan Eidelman, Glenview (Glenbrook South) (A), 2024
500-Yard Freestyle — 4:18.86, Danny Thompson, Hinsdale (Central), 2012 (finals)
100-Yard Butterfly — :46.71, Connor Black, Mundelein (H.S.), 2013 (finals)
100-Yard Backstroke — :46.65 Brady Johnson, West Chicago (Coop), 2024 (finals)
100-Yard Breaststroke — :52.98, Joshua Bey, Hinsdale (Central), 2024 (finals)
100-Yard Breaststroke for Athletes with Disabilities —1:10.60, Matthew Leinart, Downers Grove (South) (B), 2020
1:47.04 Noah Thomas, Arlington Heights (Hersey) (A), 2020
200-Yard Individual Medley — 1:44.89, Joshua Bey, Hinsdale (Central), 2024 (finals)
200-Yard Medley Relay — 1:29.40, Hinsdale (Central), (Vidar Carlbaum, Joshua Bey, Jeffrey Hou, Andrew Gilbert), 2023 (finals)
200-Yard Freestyle Relay — 1:21.26, Hinsdale (Central), (Andrew Gilbert, Carlbaum, Noah Priest, Brody Marcet), 2023 (finals)
400-Yard Freestyle Relay — 2:59.61, Hinsdale (Central) (Vidar Carlbaum, Jeffrey Hou, Noah Priest, Andrew Gilbert), 2023 (finals)
Diving — 569.50, Nolan Harrison, Riverside (R.-Brookfield), 2022
National Records from National Federation Record Book.
50-Yard Freestyle — :19.20, Aiden Hayes, Norman (North), OK, 2021
100-Yard Freestyle — :42.34, David Nolan, Hershey, PA, 2011
200-Yard Freestyle — 1:33.26, Grant Shoults, Rancho Santa Margarita Catholic), CA, 2016
500-Yard Freestyle — 4:12.87, Grant Shoults, Rancho Santa Margarita Catholic), CA, 2016
100-Yard Backstroke — :45.34, Ryan Murphy, Jacksonville Bolles, FL, 2012
100-Yard Breaststroke — :51.62, Max McHugh, Sevastopol at Madison, WI, 2018