Courtesy: USAT

Memorial Day weekend was also a weekend of long distance racing around the world.

U.S. national duathlon champion Greg Watson (Newark, Del.) held his own Sunday against some of the world's best duathletes, placing fourth at the Intervall Duathlon Zofingen in Zofingen, Switzerland. Jarrod Brauer of Australia won the race - which consisted of a 4K run, 16K bike, 4K run, 16K bike, 4K run - in 1 hour, 26 minutes, 51 seconds. Christoph Mauch of Switzerland was second (1:26:58) and Stefan Risen of Switzerland was third (1:27:10). Watson's time was 1:27:52.

Swiss Olympic gold medal-winning triathlete Brigitte McMahon won the women's race in 1:40:21.

Slots for Ironman Hawaii were available at Sunday Ironman races in Florianopolis, Brazil, and Lanzarote, Canary Islands. Michael Lovato (Boulder, Colo.) was the lone U.S. pro competitor at Lanzarote and finished 12th overall in 9:32:26. Denmark's Peter Sandvang won the men's race in 8:48:44.

For more information and complete results, go to www.ironmanlanzarote.com.

Ken Glah (West Chester, Pa.) finished 13th among the pro men at Ironman Brazil. Glah finished in 9:22:52. Winner Spencer Smith of Great Britain finished in 8:15:38.

For more information and complete results, go to www.ironmanbrazil.com.

Finally, there were Ironman Hawaii slots available at Sunday's Keauhou Kona Triathlon in Kailua-Kona, Hawaii. The race was a half Ironman consisting of a 1.2-mile swim, 56-mile bike and 13.1-mile run.

Chad Hawker (Seaside, Calif.) won the men's race in 3:57:49. Peter Hursty (Honolulu, Hawaii) was second in 4:09:49 and James Cotter (Kailua-Kona, Hawaii) was third in 4:11:07.

Age-grouper Michelle Gwozdo (Carlsbad, Calif.) won the women's race in 4:34:17. Veteran pro Paula Newby-Fraser (Escondido, Calif.) was second in 4:35:22 and Susan Burr (Honolulu, Hawaii), another age grouper, was third in 4:41:08.

For more information and complete results, go to www.keauhoutriathlon.com.