Boulderthon Promo Codes
boulderthon.orgThere's a moderate chance you'll find a working Boulderthon promo code right now. On this page you'll find 30 codes ranked by what's actually worked at checkout. The best one to try is ALLIE10.
How often Boulderthon codes work
Each bar is one week of real shopper results: the greener the bar, the better the chance a code worked that week. Paler bars carry limited data.
| Discount | Source | Freshness | Promo code |
|---|---|---|---|
| $10 off registration | SourceInstagram post | Freshness | NELLY10 |
| $20 off | Source | Freshness | SAVE20MAY |
Source Seen in Boulderthon's own advertising Found by Wethrift4 months ago Weekly history Loading… | |||
| 15% off fueling products | Freshness | BOULDERFUELED26 | |
Found by Wethrift2 months ago Weekly history Loading… | |||
| $20 off marathon or half marathon | SourceYouTube video | Freshness | SARA20 |
| $20 off | Freshness | BOSTON20 | |
| $20 off 50% off Half or Marathon | Freshness | D3GLORYDAYS | |
| $20 off marathon or half marathon | Freshness | FTLR2026 | |
| $26 off registration | SourceInstagram post | Freshness | FF26FOR2026 |
| 2 weeks free of Runna app | Freshness | BOULDERTHONRUNNA | |
| $100 off registration | SourceInstagram post | Freshness | TREBOU100 |
| $5 off 5k/10k | Freshness | FTLR5 | |
| $10 off orders of $25+ UberEats Order | Freshness | BOULDER10 | |
| 15% off fueling products | Freshness | BOULDERFUELED15 | |
| $25 off Full/Half Marathon | Freshness | RUNBOULDER25 | |
| 20% off Winter Run Jacket | Freshness | SPRING20 | |
| $20 off the 13.1 or 26.2 | Freshness | RAMBLING20 | |
| 30% off Cooldown | Freshness | BOULDERTHON30 | |
| $25 off full and 50% off half race | Freshness | 25FOR2025 | |
| $20 off by Fri | Source | Freshness | MARCHFB20 |
| 20% off all distances | Freshness | BFCM20 | |
| $5 off 5k or 10k entries | Freshness | LABORDAY5 | |
| $10 off race entry | Freshness | ELEVATE10 | |
| 15% off 10K & 5K | SourceInstagram post | Freshness | RUNBOULDERTHON15 |
| $20 off | SourceInstagram post | Freshness | MOM20 |
| $20 off | Freshness | MARCHFB20 | |
| $20 off | Freshness | SAVE20MAY | |
| $20 off marathon or half registration | Freshness | ALI | |
| $25 off full/half price products | Freshness | RUNBOULDERTHON25 | |
| $20 off marathon or half marathon | SourceYouTube video | Freshness | STRENGTH20 |
About this page
Introducing a more honest way to find coupon codes
Every code has a history, and we track it
Codes fail for boring reasons: they expire, they only cover one category, they only apply to a first order. Calling any of them "verified" would be a guess dressed up as a fact. We publish the chance instead, built from checkout data and shopper answers, and we track it over time.
Likely not workingMixed resultsHigh chance of working
You'll find one of these charts on every code we list, tracking how it has performed over time.
When there is nothing worth trying, we say so
When we don't think there is a working code for a store, we say so right at the top of the page, before you spend time scrolling.
Good chance right now78%
Nothing likely right now9%
A code that works at breakfast can be dead by lunch. Nobody can promise otherwise, so we don't stamp anything here as "working" or "verified". We tell you the chance of a code working instead, based on real shopper feedback and data, and when the chance is poor we say that out loud.
