Rebecca Maccaroni

Rebecca Maccaroni

Rebecca Maccaroni

Rebecca Maccaroni

Rebecca (Becky) Maccaroni is an age group triathlete and triathlon coach currently living in Greenville, South Carolina with her husband.  After playing a few team sports as a kid, Becky truly became an athlete as an adult – she began jogging in law school (primarily to lose weight) and completed her first half and full marathons in 2007 (at the age of 33).

She completed her first sprint and Olympic distance triathlons in the summer of 2008 and fell in love with the sport.  She completed her first 70.3 in 2009 and her first IRONMAN in 2010.  To date, she has completed 13 IMs and dozens of 70.3s and short course events.

Becky has been a Team Sirius athlete since the fall of 2016 where, under the mentorship of her coach, Karen Burks, she has had several top 20 and top 10 long course age group finishes.  She is a true believer in the Sirius system as she continues to PR as an over-forty athlete!


I became a triathlon coach because I love the sport and appreciate how much it has changed my life.  I want to motivate and inspire others – at all levels – to both believe in and challenge themselves; to set ambitious goals and to achieve them.

I appreciate how much trust an athlete places in his or her coach and do not take that responsibility lightly.  I consider it an honor and a privilege to be invited to be a part of an athlete’s journey.  My goal is to help an athlete not only unlock their potential (the way mine has been) but to learn from and, more importantly, enjoy the process.

I went from the middle of the pack to become an age group contender thanks to the Sirius system and my coach, Karen Burks.  I believe anyone can have the same (or greater) success if they commit to the process, communicate openly and honestly with their coach, and do the work

I want to help you succeed!

Triathlon Career

Since becoming a Team Sirius coached athlete in 2016, Becky has had two top ten age group finishes in IRONMAN events with a total PR of 1 hour 45 minutes from her pre-Sirius personal best.  She has also finished in the top 15 of her age group in four 70.3 events, one of which qualified her to compete on Team USA in the ITU long course world championships (held in Pontevedre, Spain).  Despite being a primarily long course athlete, Becky has also qualified for and competed in USAT’s Age Group National Championships each year.  In addition to other short course awards, Becky was first or second overall female in every aqua bike event she competed in during the 2019 season.  She has been designated a USA Triathlon All American twice – as both a triathlete and an aqua biker.

Racing Highlights

70.3 Highlights:

  • 14th AG in Puerto Rico 70.3 (2017)
  • 13th AG in Ohio 70.3 (2017)
  • 14th AG in Ohio 70.3 (2018) (over a 13-minute distance and course PR)
  • 9th AG in MiamiMan (2018) (qualification for Team USA)

140.6 Highlights:

  • 10th AG in IRONMAN Boulder 2017 (a 41-minute distance PR)
  • 8th AG in IRONMAN Maryland 2017 (a one-hour distance PR)
  • Distance PR of 11:18:29 at IRONMAN Texas 2018 (a distance PR of 0:04:33)
  • 18th AG in IRONMAN Chattanooga in 2019


  • USA Triathlon certified level 1 coach
  • Road Runners of America certified level 1 coach
  • US Masters Swimming certified levels 1 & 2 coach
  • ACE certified personal trainer
  • Red Cross certified lifeguard

Hire Becky for custom coaching! Email us at to find out more!


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