The sprint distance race was changed from a swim-bike-run triathlon to a run-bike-run dualthon.
The revised course is a 2.72-kilometer run, 20-meter bike, and another 2.72 kilometer run with the athletes going off in a time trial start.
Changes to the course caused a 30-minute delay of the race.
The Triathlon's swim portion cancellation comes just one day after 75-year-old Jim Hix passed away after being pulled from Lake Erie while competing in the swim portion of the race in Cleveland on Saturday.
The Triathlon athlete from Claremore, Okla. was competing in the 75-79 age group.
"Our sport lost a member of its beloved community and we extend our heartfelt condolences to Jim's wife, Ann, his family and friends," said USA Triathlon CEO Rocky Harris in a USA Triathlon press release. "As one of the nation's top multisport athletes in his age group, Jim and USA Triathlon shared a close relationship and his passing is particularly difficult."