RUN WITH US on the SEACOAST

MEET COACH KERI-ANN

Keri-Ann Rugg, Youth, Adult, & Group Running Coach

Proudest Performance: 2024 Boston Marathon — completed the race 6 months pregnant

Marathon PR: 3:20:41 — Chicago Marathon, 2022

Half Marathon PR: 1:36:52 — Smuttynose Rockfest Half Marathon, 2021

Trail Racing: 2022 Gunstock Trailfest — 1st Female, Peak to Peak Trail 10K Challenge + 1st Female, 10K Trail Race

About Keri-Ann

My Running Story

I’ve always loved being active, but running didn’t become part of my story until later. Growing up in New England, I remember TVs being wheeled into our elementary school classrooms on Marathon Monday so we could watch the Boston Marathon. Even then, running a marathon was a dream, and running Boston felt like an even bigger one.

I didn’t run my first race until I signed up for my first marathon in 2013. I finished in 4:50, and that first marathon sparked a love of running that has stuck with me ever since. In 2020, I finally qualified for Boston. Since then, I’ve qualified six more times and run the Boston Marathon four times, including completing the race at six months pregnant and returning to run it again eight months postpartum with my baby cheering me on from the sidelines.

Those experiences have taught me that running is about so much more than a finish time. It’s about adapting when life changes, trusting the process, celebrating the small wins, and finding a way to keep running fun.

I’m passionate about helping runners do exactly that. Whether you’re training for your first marathon, chasing a PR or BQ, navigating pregnancy, returning after an injury or having a baby, or simply trying to become a stronger and more confident runner, I want to meet you where you are and help you get where you want to go.

My Coaching Story

After graduating from the University of New Hampshire with a degree in Nutrition Sciences, I began my career in coaching and have now been coaching runners for nearly a decade. I’ve worked with athletes of all ages, abilities, and experience levels, from brand-new runners to competitive athletes chasing big goals.

My approach is individualized, practical, and centered around the person behind the runner. I’ll help you fine-tune your training, build strength and speed, improve your form, and navigate the inevitable highs and lows that come with running. My background in Nutrition Sciences as well as health and wellness also shapes the way I approach fueling, recovery, and the bigger picture of training.

Most importantly, I want you to feel supported and confident throughout the process. Running should be challenging, but it should also be fun. Together, we’ll work hard, celebrate your progress, and keep it that way.

I’m based in Kittery, Maine and work with runners throughout New England and virtually beyond.

Contact Keri-Ann

Phone: (603) 582-0444
Email: keri-ann@mercuriarunning.com
Instagram: @ruggrunning

Form Coaching, Training Plans & Online Coaching

Form Coaching & Workouts with Coach Keri-Ann

Coaching includes:

  • Running form technique

  • Running strength, mobility, balance & coordination exercises

  • Coach-directed workouts with immediate feedback

  • Injury prevention exercises and tips

  • Discussion of goals


$175/ First session,  $150/ Each additional session
$450/ 3 sessions, $700/ 5 sessions,  $1400/ 10 sessions

Form Coaching & In-Person Training

Purchase Form Coaching /In-person Workouts

Training Plans

Train smart, be intentional, reach your goals!

Your coach will develop a personalized training plan that you can access from anywhere using an app!

Please note, training plans are only sold paired with online coaching. Online coaching is $150/month and includes weekly support and plan adjustments as needed. Your coach will set up auto-billing for online coaching.

--Please allow one to two weeks for development--

$225/ (3-months) 12-weeks,  $300/ 4-months (16-weeks)
$375/ 5-months (20-weeks),  $450/ 6-months (24 weeks)

Custom Training Plans

Purchase Training Plans

Stay on track. Get support.

Your coach will personally check-in with you multiple times each week to keep you on track during your training.

Ask questions and stay accountable by chatting directly inside your online training plan. Your coach can set up auto-billing for online coaching.

Must be paired with a training plan.

$150/Monthly/Every 4-weeks

Online Coaching

Purchase Online Coaching

Talk with an expert!

Meet with a Mercuria coach in-person or virtually for your own private Q & A.

Not currently working with a Mercuria coach, but want some advice? We’ll chat with you about your training, goals, race calendar, gear & answer all your questions.

We offer a discounted rate for current Mercurians, ask your coach for details.

$175/ Session, 60-75 minutes 

Coach Consult

Purchase Coach Consult

Specials and Packages

Seasonal Specials - Fall 2026

Save $50-$75

Train for your fall & winter goals with our seasonal special!

This Training Package Includes:

  • Custom training plan

  • Online coaching

  • One form session (In-person or online)

This training package is ideal for staying on track for your fall & winter goals! Special available through November 2026.

$775/ 3-month (12-week) Training Package

$1000/ 4-month (16-week) Training Package

$1225/ 5-month (20-week) Training Package

Purchase Training Package -Seasonal-

2026 Training Packages

Save $100+

16-week or 24-week training packages tailored to your individual running and race goals!

Training Packages Include:

  • Personalized training plan (4-months or 6-months)

  • Online coaching

  • 3 sessions of in-person coaching

Training package ideal for training for a marathon, half marathon, ultra, or race series.

$1250/ 4-month (16-week) Training Package
$1700/ 6-month (24-week) Training Package

Purchase Training Packages

Testimonials

  • Keri-Ann is the type of coach you need to succeed. Her coaching style is uniquely tailored to fit your lifestyle, time constraints, and personal fitness goals. The running plan she made me had so much variety that I was constantly challenged in a way that helped me get faster and perform on race day. Throughout the training process, she gave such great, personalized advice on gear selection, nutrition, technique, and many other areas. Thanks to her plan, I was able to beat my half marathon goal by 8 minutes. I can honestly say I will never have another running coach!

    - Brady G.

  • Coach Keri-Ann is awesome! Being coached by her has helped me develop as a runner and has reminded me to have fun with it! Not only am I having the most fun I ever have while running, I am also setting new personal bests. I have learned to trust how I feel on the run and stay flexible with the plan. Coach Keri-Ann is extremely supportive, encouraging and positive. She always checks-in and adjusts training when necessary. I am so grateful for everything she has helped me achieve and look forward to the future!

    -Allison Z.

  • Working with Coach Keri-Ann has been amazing! She's helped me improve my fueling and form, and I've hit three PRs in the short time working with her. I love the flexibility of each week's runs, and the support and interaction that she provides throughout the week. The training plans are right-sized for my fitness level and never seem daunting. I feel like I've known Coach Keri-Ann for years! If you're looking for a supportive and interactive coach, I can't recommend her and Mercuria Running enough.

    -Cara Y.

  • I’ve been running with Coach Keri-Ann since Summer 2020 and have felt a tremendous difference in my performance. She’s taught and encouraged me to trust my training plan, the process, and my body. Save the miles/effort for when it counts and enjoy each workout. She incorporates fun and energy into every workout and is always available whenever I need coaching support (questions about my plan, paces, etc.) or to encourage me. My current training plan is the perfect mix of challenge and fun and I’m learning that more miles don’t necessarily mean better outcomes. If you want a coach you can trust, who will encourage you to push yourself into the best runner you can be, and who is downright fun, choose Coach Keri-Ann, you won’t be disappointed, you might just PR.

    - Sarah G.

  • I've worked with Coach Keri-Ann of Mercuria for two running seasons now and I'm glad I found her. Before Coach Keri-Ann I went through a couple of other coaches and never really clicked, but Mercuria has a different approach to training that is more supportive and more flexible. Even though Keri-Ann is on the other side of the country from me, she still checks in many times a week, and before my races she really helps get me in a game day mindset. I plan on working with Coach Keri-Ann again, as soon as I find my next big race.

    -Andy G.

  • I can’t praise the coaches at Mercuria Running enough. I had the pleasure of working with coach Keri-Ann on my training to help me reach and shatter some big goals I had set out at the beginning of the year. All of the coaches at Mercuria are highly knowledgeable, detail-oriented, very helpful, and kind. Keri-Ann helped to custom tailor a training plan to fit my schedule, adjusting it as I progressed to train for a couple races. It all culminated in a great finish at the California International Marathon, far exceeding my goal for my first marathon. The coaches at Mercuria will help you work on your form, step up your PR’s, and help you conquer your next big goal!

    -Sergei

  • Keri-Ann is an amazing coach and person. Her passion for running is inspiring. She is very supportive, positive, and fun. She has helped me accomplish so much over these past few months in becoming a stronger and faster runner. I highly recommend Coach Keri-Ann!

    -Nicole B.