Rather than end the multi-sport season with a bang, these athletes end their season with a SCREAM!Monster Triathlon 2021 marks year 16 and will sell-out early with over 700 athletes! The distances are FAST for the experienced athletes and just right for the beginner.At Monster Keller, you will enjoy the beautiful indoor pool of the Keller Natatorium for a 300 meter swim; jump on your bike for 12.8 miles, and finish strong with a 3.1 mile run. Each event is a little different at the finish line. Some have live bands, but ALL of the events are filled with energy and WONDERFUL costumes which are ENCOURAGED! This is a great race to end your triathlon season!