Fastest marathon dressed as a zombie (male)

According to Official Guinness Records,

The fastest marathon dressed as a zombie is 3 hr 18 min 38 sec and was achieved by Sean McShane (Ireland) at the Dublin City Marathon in Dublin, Ireland, on 28 October 2013.
Sean combined his love of running and zombie movies to achieve a life times ambition of setting a Guinness World Records title.

For a complete list of 2013 records, please visit 2013 Guinness Records in Ireland.

Other Ireland records that might interest you:

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