June 7, 2026 · San Francisco, California, USA
1.5 mi swim / 18 mi bike / 8 mi runTriathlon70.3 / Half

Escape from Alcatraz Triathlon

Bay Cold. City Grit.

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San Francisco, California, USABay Cold. City Grit.
Course intelligence

Know the course before you race it.

Terrain

Open-water swim from Alcatraz Island in 55°F bay water with strong currents. Hilly bike through the Presidio and Golden Gate Park. Trail run including the infamous Sand Ladder.

Conditions

June in San Francisco: 52–65°F air, 54–58°F bay water. Cold. Foggy morning typical. Wind through the Presidio.

Aid Stations

Limited aid on the short bike; run aid at miles 3 and 6. Race is short — under 3 hours for most finishers.

Key Challenge

Cold bay water causes significant heat loss in the swim. Core temperature suppresses GI function in T1 and early bike. Athletes who skip early bike nutrition because they're cold arrive at the run glycogen-depleted.

Fueling questions

Nutrition answers for Escape from Alcatraz Triathlon.

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