It depends what time you want to be in your corral. If you want to be at the front of the corral I’d get there as soon as the corrals open. I actually prefer to be at the back of my corral cause I like to sit on the curb as long as I can before the race start. The less time on my feet before the race the better! Race starts at 5:30 for the half, so I want to be in my corral by 5:00. I’m staying at Hojo’s on Harbor so I have a 20 minute walk to
Disneyland Drive. I will probably leave my hotel about 4:15 so I don’t feel rushed at all. This gives me 45 minutes to walk through the esplanade, through DTD, through security check over to bag check, check my bag, use a portapotty and then head to my corral. Staying at DLH you’re really in the best location. Assuming you’re not checking a bag or stopping at the portapotty, it shouldn’t take you more than 10 minutes to get from the hotel to your corral. Last year and for Tink the security check was very fast so no need to worry about that holding you up.