Bill Ludington Fitness & Big Dog Coaching

Bill Ludington Fitness & Big Dog Coaching

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Denver-based personal trainer and triathlon coach.

As a personal trainer in the Denver area, I provide affordable, customized fitness services specific to your goals, needs, and abilities, and will work around any physical disability or medical implications you may have. Together we'll create a program that works for you, the location of the workout can be in the comfort of your own home or a private gym setting, we can find the best fit for you.

05/17/2026

Congratulations for a solid day at the 1/2 marathon, keep putting in the work as we build for Florida! 💪

Photos from Bill Ludington Fitness & Big Dog Coaching's post 05/16/2026

Boys getting it done today Jacksonville, ripper of a day for sure! Well done gentleman, was a blast tracking you today. 3rd age group for .ian and 7th age group for

05/02/2026

Camp life Moab style!

Photos from Bill Ludington Fitness & Big Dog Coaching's post 02/06/2026

Dinner cruise in shorts Feb 5th! Is this heaven?😂

Photos from Bill Ludington Fitness & Big Dog Coaching's post 12/23/2025

Two weeks of hiking, running and riding in one of are favorite places Happy Holidays.🌲🎁

Photos from Bill Ludington Fitness & Big Dog Coaching's post 12/06/2025

One year ago we lost Moose, he was are inspiration for BigDog Coaching and Scooby’s best friend, it’s always hard loosing a pet, little did we know that the same day a family had made the tough decision to give up there pet, 4 days later we just happened to look at a local rescue site and there was snow( now Ollie) we thought for sure he would be spoken for but fate was on are side, so we want to introduce Ollie, the best addition we could ever hope for and Scooby’s new buddy, it’s officially one year gotcha week and we couldn’t be happier.

Photos from Bill Ludington Fitness & Big Dog Coaching's post 12/01/2025

First trip to Portugal and it didn’t disappoint, couple days of exploring by foot and almost a week on the bike, super lucky the weather cooperated and there was plenty of sunshine to warm it up during the day, never seems to be a bad road to ride when in Europe! Even got some wheel time the Viking 🇵🇹

10/31/2025

Coaches are ready for all the goblins!

Photos from Bill Ludington Fitness & Big Dog Coaching's post 10/29/2024

Been an amazing couple weeks for the BigDog squad, and .ian had an amazing day at , Ian with his redemption on the island going 9:11 (shaving off 30 min from 2022) and Kevin going 9:51 at his first trip to the island. Sunday at took the win in her age group, solid from start to finish and Brian took 4th, held steady until mile twenty and then picked up the pace and moved his way up, so fun watching the day unfold as everyone executed there plan flawlessly. Shout out to and for a solid day North Carolina 70.3 boys had a solid day.

Photos from Bill Ludington Fitness & Big Dog Coaching's post 10/25/2024

Stoked to watch and .ian take on race tomorrow, BigDog crew will be sending the vibes from all over, go get it boys!

Photos from Bill Ludington Fitness & Big Dog Coaching's post 09/29/2024

Boys letting it rip today! 4 weeks out, keep grinding!

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Tucson, AZ
85701-85775