"My eyes have been bothering me something fierce and the training runs this last week have been horrible," said Oahu resident Krisine Thiessen.
Fingers are crossed that weather conditions will improve by Sunday.
But organizers have this advice to runners.
"Use common sense, slow down and drink a lot of fluids and remember it’s no disgrace to drop out of the race if it’s not your day," said Barahal.
The 40th Honolulu Marathon, a big deal race with big payoffs, but Barahol assures you can always run again next year.