2026 Chiba Aqua-Line Marathon

Name: 2026 Chiba Aqua-Line Marathon
Start: 2026-11-08
End: 2026-11-08
Location: Kisarazu, Japan

42K

BonusesScenic

Nov 8, 2026 · 1 day🇯🇵 Kisarazu, Japan

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Key FactsOpens 15 Mar

Entry

Standouts

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Run across the Tokyo Bay Aqua-Line expressway, normally closed to runners, on Nov 8, 2026. A tough bridge course held only every two years. First-come entry.

Why attend here

Run the rolling roads of Kisarazu and climb the Aqua Bridge for sweeping autumn views of Tokyo Bay, then recover with a bowl of local clams or a warm bowl of ramen in the quiet, post-summer crowds of November. The mild, crisp air is perfect for a marathon, and the off-season means you'll have the seaside town and its fish markets to yourself.

Distance from you

From Columbus, US to Kisarazu, JP

~13.2h · 10,554 km

Kisarazu

typical Nov weather · 2025

8 Sat

16°13°

0mm8.5 m/s

Event Details

Elevation

280m

Course

A genuinely tough rolling course: surface roads through Kisarazu lead onto the Tokyo Bay Aqua-Line, where you climb the Aqua Bridge to roughly 40 m above the sea toward the Umihotaru turnaround, with the hardest pulls clustered late around 34, 37 and 40 km.