They are going to Oahu and are all WAY south of the rhumbline. So the hazard seems pretty low.
I've got 85% of this done already --
data from here:
http://yb.tl/Links/greatpacificrace2014
Import Expedition files and parse to get
PROJ 36.602 -121.89 201406241400
ROWI 35.0136 -121.707 201406241500
ELSA 32.8468 -121.49 201406241400
JIMB 34.9357 -121.2 201406241500
CLEA 36.6041 -121.892 201406111600
CC4P 30.0638 -123.685 201406241400
FATC 32.7535 -122.512 201406241400
BATT 28.3586 -129.111 201406241400
BOAT 33.302 -123.36 201406241400
PACI 33.578 -121.526 201406241400
NOMA 30.0787 -126.484 201406241400
PACI 31.0135 -125.745 201406241400
UNIT 28.2012 -130.676 201406241400
SUPP 36.6038 -121.89 201406241400
SUPP 36.6012 -121.905 201406241400
Their VMGs are really low -- our fleet should pass way to the north of them .