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Swim, bike, run at Marble Falls Triathlon

The 19th annual Marble Falls Triathlon is Sunday, July 21. Athletes can register now online. File photo

The 19th annual Marble Falls Triathlon returns with a few changes for participants — one of which even takes running out of the equation.

The swim-bike-run event is Sunday, July 21, starting and finishing at Lakeside Park, 307 Buena Vista Drive, despite ongoing construction at the park.

It consists of a 1-kilometer swim in Lake Marble Falls at 7AM followed by a 23-mile bike ride and a 4.4-mile run. There’s also a sprint distance of a 500-meter swim at 7:30AM followed by a 12-mile bike ride and a 2-mile run.

New this year is the AquaBike option of just the swimming and biking portions.

“We’ve eliminated the run for people who can’t run because of knee replacements or hip replacements,” said race director Mario Gonzales.

The AquaBike also includes a sprint option.

The biggest change to the event this year is the bike route. In previous years, cyclists headed south on US 281 to Texas 71. This year, due to road construction on US 281 south, riders will race to the west side of Marble Falls and onto Ranch Road 1431. The course then travels to FM 1980 before turning around at the end of the road to return to Lakeside Park. The sprint’s 12-mile bike portion will be adjusted to fit the new course.

The running course remains the same and takes athletes through the Pecan Valley area of Marble Falls.

The cost to compete is $120 for the regular race and $110 for the sprint race. The AquaBike cost is $100 for the regular race and $80 for the sprint option. Athletes can also compete as a three-person team in the relay division with each tackling a different portion. Cost is $135.

Gonzales expects about 250 athletes with “98 percent” coming from outside of the area.

To register, visit the Marble Falls Triathlon website.

Volunteers are needed to help during the triathlon. Contact Gonzales at or (512) 731-7722 for more information.

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