What distances are offered at the Jack London Ranch Run?

• →Half Marathon
• →5 Mile

What is the course layout and terrain?

The run begins and ends in the picnic area adjacent to the London Cottage. The route passes the historic concrete silos with views overlooking the vineyards before ascending into the hillsides of Sonoma Mountain. The terrain consists of grassy meadows and forested areas populated with black oak, buckeye, and bigleaf maple.

What are the time limits for the races?

• →Half Marathon: 3.5-hour cut-off (approximately 16 min/mile)
• →5 Mile: 3.5-hour cut-off (approximately 42 min/mile)

How much does registration cost?

Youth (17 and under):

• →Half Marathon: $39.44
• →5 Mile: $28.74

Adult (18 and over):

• →Half Marathon: $108.98 (Pricing valid April 1–May 1)
• →5 Mile: $98.28 (Pricing valid April 1–May 1)

Note: Early bird pricing is available from February 17 through May 1, 2026. Prices are scheduled to increase on May 2, 2026.

Are hikers and walkers permitted to participate?

Yes, hikers and walkers are welcome to participate in the event within the designated cut-off times.