1/1 blood refers to horses which can trace their bloodlines back to the “1/1” PFPs, these are the 5 rarest PFPs in the Photo Finish PFP collection.

PFPs were used to breed the first generation of race horses in Photo Finish™ LIVE, learn more about PFPs here.

To say 1/1 blood is bad is not accurate because many of the strongest horses in the game have 1/1 blood - but it can limit breeding options when seeking to avoid inbreeding due to how commonly the 1/1s and horses with 1/1s in their bloodline have been bred.

Learn more about inbreeding here.