What distances are available for this event?

• →50 Mile race
• →50K race

What are the start times for the event?

• →50 Mile: 6:30 AM
• →50K: 7:00 AM

What are the time limits for each distance?

• →50 Mile: 14 hours
• →50K: 10 hours
• →All runners must be off course by 8:30 PM

What is the race capacity?

• →The event has a total capacity of 500 runners across all distances

What is the race registration status?

• →The event is currently sold out as of February 14, 2026, with a waitlist that closes on March 8, 2026

What are the key aid station locations?

• →Tennessee Valley Aid Station: Mile 10.5 and Mile 45.8
• →Cardiac Aid Station: Mile 19.8 and Mile 29.3 (for 50 Mile runners only)

What aid station provisions are available?

• →Hydration: Water, Skratch Hydration Mix, Coke, Ginger Ale
• →Food: Gu Energy gels (not allowed at GGNRA aid stations), chews, Stroopwafels, trail mix, pretzels, chips, M&M's, bananas, watermelon, tangerines, salt tablets
• →First Aid: General supplies and Salt-Stick tablets (no anti-inflammatory meds)

What race support services are available?

• →Timing partner: ultralive.net (live tracking, splits, aid station tracking) with a $3 fee included in entry

What awards and swag are given to finishers?

• →50 Mile Finishers: Custom medal, Boco Trucker Hat, and top 3 M/F receive custom trophy and cash prizes
• →50K Finishers: Custom medal, printed drinking glass with race logo, and top 3 M/F receive custom trophy and entry credit
• →Age Group Awards: Medals for 3 deep in each category (13 & under, 14-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70+)
• →Dead Last Finisher (DLF): Custom award for each distance

What is included in the race shirt?

• →District Perfect-Tri tri-blend performance tee (UPF 30, moisture-wicking) with guaranteed size if registered by February 28, 2026

What volunteer opportunities are available?

• →Volunteers receive a custom "MUC Trail Support" shirt, free race-day food, and credit toward future Inside Trail Racing events
• →Apply via online volunteer form

What are the registration policies?

• →Entry fees are non-refundable
• →50% credit toward future Inside Trail Racing events if cancellation is received ≥3 weeks pre-race
• →No credits for cancellations within 3 weeks of race or for injuries/emergencies
• →No transfers or deferrals to other runners
• →No refunds for course modifications due to trail work, closures, or permitting agency requirements
• →Races proceed in rain or heat; no cancellations for weather alone
• →If ITR cancels the event entirely (force majeure), no refunds; credits/deferrals at ITR discretion
• →50/50 Challenge: Combine Monterey Ultra 50 Miler + Marin Ultra Challenge 50 Miler for commemorative Craft Sportswear hoodie and leaderboard placement. Registration via Monterey Ultra. Cancellation for credit must be ≥3 weeks before either event

What are the important deadlines?

• →February 28, 2026: Last day to guarantee race shirt size
• →March 8, 2026: Final date for waitlist invitations (no race-day waitlist)
• →March 14, 2026: Race day — Start/Finish at Rodeo Beach, Sausalito, CA