Can You Use Your HSA/FSA for Endurance Races?

Benjamin Cole
Head of Compliance

You've signed up for your first Spartan Race. Or maybe you've been grinding HYROX training for months, logging early mornings, sticking to a structured plan, and showing up consistently because race day gives you something to train toward. That's the thing about endurance races: the event itself is almost secondary to what the commitment does for your body and mind along the way. Improved cardiovascular health, better metabolic markers, stronger muscles, sharper mental health — the benefits are real and measurable.
So it's a fair question: could your HSA or FSA help cover it?
For some athletes, the answer is yes. This article breaks down how HSA/FSA eligibility works for endurance races, the role a Letter of Medical Necessity can play, and how to maximize your pre-tax dollars across your entire training and race-day experience.
What Makes Something HSA/FSA Eligible?
HSA and FSA accounts let you spend pre-tax dollars on qualified medical expenses, potentially saving you up to 30% depending on your tax bracket.
According to IRS Publication 502 (Medical and Dental Expenses), eligible medical expenses are costs related to "the diagnosis, cure, mitigation, treatment, or prevention of disease, and for the purpose of affecting any part or function of the body." Critically, the IRS says expenses must be primarily for medical care, not exclusively. A prescribed activity can have a recreational component and still qualify, as long as the medical purpose is the primary documented reason for that individual.
The LMN Path: How Endurance Racing Can Qualify
A Letter of Medical Necessity (LMN) is a document from a licensed healthcare provider that establishes a specific product or activity as medically necessary for a diagnosed condition. LMNs have become an increasingly common tool across the fitness industry, reflecting growing clinical recognition that movement and exercise are frontline interventions for a wide range of conditions, from cardiovascular disease and metabolic disorders to depression and chronic pain. When a licensed provider documents that a specific activity is part of a patient's treatment plan, it becomes a prescribed health intervention.
This is a similar mechanism that has unlocked gym memberships, fitness equipment, and structured wellness programs for HSA/FSA reimbursement.
It's also worth noting that plenty of accepted HSA/FSA activities have recreational components: yoga, personal training, and fitness classes. The medical purpose doesn't have to be the only purpose. It just has to be the primary documented purpose for that individual consumer.
Training for an endurance event requires a structured fitness regimen that produces measurable medical outcomes: improved cardiovascular function, better metabolic markers, increased musculoskeletal strength, and documented improvements in mental health. For consumers with risk factors like high blood pressure, pre-diabetes, obesity, or depression, a physician can credibly prescribe structured athletic training as a health intervention, and the race entry becomes the defined endpoint of that program.
A Real-World Example
Meet Sarah. She's 42, recently diagnosed with pre-diabetes and hypertension, and her physician has recommended a structured exercise program to manage both conditions and reduce her risk of progressing to type 2 diabetes.
Rather than prescribing a generic gym routine, Sarah's doctor works with her to set a concrete goal: completing a Spartan Race in six months as the measurable endpoint of her training program. The physician documents this in an LMN, connecting the race preparation and entry fee to the treatment of her diagnosed conditions.
With that LMN in hand, Sarah has a well-documented basis for submitting her HYROX registration fee and associated training costs as qualified HSA/FSA expenses. Her plan administrator has clear evidence that the expense was primarily for medical care, not recreation. That's the difference an LMN makes.
If you're working with a physician to manage a chronic condition and your care plan involves structured fitness, it's worth having that conversation explicitly. Formalizing the connection between your training and your diagnosis can unlock meaningful savings.
Other Race-Related Expenses That May Qualify
Even without an LMN, there's a meaningful category of race-adjacent spending that qualifies outright. This is where endurance athletes can recapture real money with no extra steps.
Always eligible, no LMN needed:
Elastic bandages, kinesiology tape, and athletic bracing: standard HSA/FSA-eligible products for treating or preventing musculoskeletal injuries
First aid supplies: race kits, blister treatment, wound care
Recovery products: pneumatic compression boots (like Normatec) or percussive therapy devices used for injury rehabilitation
Pain relief products: OTC pain medications, ice packs, and topical analgesics
Sunscreen (SPF 15+): always eligible; race day often means hours in the sun
Potentially eligible with an LMN:
GPS watches and fitness trackers used to monitor a medical condition, such as heart rate monitoring for cardiac patients
Orthotics and specialty footwear prescribed by a podiatrist for a diagnosed foot condition
Recovery experiences such as ice baths, massages, or acupuncture
Metabolic testing (VO2 max testing) when ordered by a physician as part of a treatment plan for cardiovascular disease
Not eligible:
Athletic apparel and gear not prescribed for a medical condition
Travel to race events
When Endurance Racing Becomes a Health Intervention
The endurance racing community is full of people training with real health intent. For many, crossing a finish line is not just a personal achievement but the measurable endpoint of a structured effort to lower their blood pressure, reverse pre-diabetes, manage their weight, or pull themselves out of a depressive episode. The physical and mental health benefits of this kind of committed, goal-driven training are well-documented and genuinely meaningful.
For those athletes, the HSA/FSA question is worth taking seriously. The path to eligibility is real, but it starts with a conversation with your physician, not a receipt. If your training is connected to a diagnosed condition and your doctor is willing to document that connection, you may have more options than you think.
This article is for informational purposes only and does not constitute tax or financial advice. Always consult your HSA/FSA plan administrator and a qualified tax professional for guidance specific to your situation.
Related content from Flex
HSA/FSA ELIGIBLE SHOPPING
Shop the Flex HSA/FSA Marketplace
Shop Now

