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New to multiday running? Follow this guided reading path — from understanding the sport to choosing your first event.
📖Recommended Reading Path
What Is Multiday Running?
Understand the sport, who does it, and why it exists.
Types of Multiday Events
Explore every format: 24h, 48h, 6-day, stage, backyard, 200+.
24-Hour Races Explained
How the format works and what to compare before entering.
48-Hour Races Explained
The second night changes everything. Sleep, nutrition, grit.
6-Day Races Explained
A full week of running, problem-solving, and self-management.
Backyard Ultras Explained
Last person standing — the fastest-growing format in ultrarunning.
All Foundation Guides
What Is Multiday Running?
Learn what multiday running includes, how timed, stage, backyard, and 200-mile events differ, and which sleep, nutrition, and logistics demands matter.
Types of Multiday Events: Formats, Rules, and First-Race Fit
Compare timed races, stage races, backyard ultras, and continuous-distance events by rules, rest, terrain, support, and planning demands.
24-Hour Races Explained: How Full-Day Ultras Work
A practical guide to 24-hour running races: how the format works, what can change across a day, and what to compare before entering.
48-Hour Races Explained: Format, Sleep, and Safety
Understand 48-hour race rules, pacing, sleep decisions, fueling, crew support, and safety without relying on universal distance or caffeine targets.
6-Day Races Explained: Format, Sleep, and Self-Care
Learn how six-day running races work, how plans adapt across 144 hours, and what to consider for sleep, foot care, fueling, crew, and safety.
Backyard Ultras Explained: Rules, Records, and Safety
Learn backyard ultra rules, distance math, current records, sleep and safety considerations, race dynamics, and how to choose a first event.
How to Choose Your First Multiday Race
A practical decision guide for choosing your first 24-hour, 48-hour, backyard, stage race, 200-mile, or 6-day ultramarathon.
24-Hour vs 48-Hour vs 6-Day Race: Which Format Fits You?
A side-by-side comparison of 24-hour, 48-hour, and 6-day races, including pacing, sleep, training, crew needs, and first-race suitability.
Ready to Start Training?
Once you understand the formats, it's time to prepare. Head to the Training Hub for plans, guides, and practical advice.
Explore Training Guides →