Ok I was just wondering if there were any rules on this. Like how long they stay at F before you determine if an older horse is sill good. One of my starter horses is still at F after 5 days post race. The other is at C. I’m not opposed to waiting but a week at F seems excessive. I don’t know how E/F work though so maybe this horse is just slow 
would anyone be able to give me further details?
Here’s the FAQ, your answer is in General -> Starting Out -> How do you tell how much rest to give your horse between races?
Hope that helps, let me know if that answer isn’t clear. 
Ahh I didn’t see that tyvm. I play mostly from my phone so sometimes things don’t show up right even though I’m using chrome.
No problem. The site is very much not designed to be mobile friendly (something I hope to fix in the beta, plus maybe making a mobile app if I get super ambitious), so I apologise if things are wonky.