HONOLULU (KHON2) — Road closures start as early as 12:30 a.m. Sunday, Dec. 12 for the Honolulu Marathon.

Ala Moana Boulevard between Atkinson Drive and Ward Avenue will be shut down starting at 12:30 a.m. Sunday.

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Nimitz Highway, Kalakaua Avenue, and Kalanianaole Highway will also be impacted.

The Honolulu Marathon starts at 5 a.m.

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The roads will reopen as athletes clear each area.