For those who have done races with a run/walk plan, what ratios did you use?
See below...
First I am not a big coach with on 'one size fits all'. We are all an experiment of one. So what works for Joe or Sally may not work for you. Try out different intervals and see what works best for you.
^^ I could not agree more. Even as an individual, I run different intervals based on lots of factors, including tired or injured legs, temperature, distance, mood, etc. That said, my first race was the Princess 5K and I threw my prescribed intervals out the door within 5 minutes - there was so much slowing down due to crowding and stopping for pics, that sticking to an interval pattern proved impossible; I just ran when I could and walked when I couldn't. Ditto for the Expedition Everest Challenge. I think the TOT will have a little of that in narrower, more congested spots, but a lot less than those shorter races.
As for finding
your perfect intervals, I think it's all about trial and error. Keep testing them out on your training runs and see what feels good!
I just finished 9.4. I'm still too slow but hopefully I can still take some time off my pace in the next 3 months.
9.4 is fantastic - you're almost there!
... in the heat that will be a Florida Run is this something that will be an issue and how can I ease it?
b. Just any suggestions to help me be ready for the heat of the TOT run? I'm counting on a bit of a break in Temps because it will be dark & late!
(can't do noontime runs due to work schedule, although Saturday could be an option)
Floridian here! :

: In a word, YES, heat will be an issue. Late Sept. is still summer here - temps will be high and humidity higher. I'm slogging through it now and I won't lie - it's tough, even being "used to it." How to deal with it?
1. HYDRATE!!! Not just during the race, but in the days before. I've seen a huge difference in long runs when I make sure to pre-hydrate vs. not.
2. Slow it down. I hate this one, but I can attest that slowing down my pace in the heat means I can go longer, easier.
3. Lightweight, wicking clothes. Frankly, with every inch of me drenched in sweat, it's hard to understand why good tech fabrics work at all, but they do.
You're right that we at least won't have the blazing FL sun to deal with, but we will have asphalt that's been baking in it all day and that holds heat for many hours after the sun goes down, plus the air temps and humidity. Totally manageable - I do it 3 times a week! - but do assume it'll be different from what you're used to.