Sporting Digest: Swimming

US NATIONAL CHAMPIONSHIPS (Indianapolis, Indiana): Men: 100m freestyle: 1 G Hall 49.31sec; 2 J Olsen 49.49; 3 J Hudepohl 49.82. 200m backstroke: 1 B Bridgewater 1min 59.21sec; 2 R Sharp 1:59.32; 3 G Burgess 1:59.90. Women: 400m freestyle: 1 J Evans 4:08.78; 2 C Teuscher 4:11.20; 3 B Bennett 4:13.78. 100m backstroke: 1 L Loveless 1:01.73; 2 B Bedford 1:02.17; 3 K Heydanek 1:02.69.