It is, but I suppose Belmont officials wanted to let all those people who paid good money to attend to at least see the horse.
In my opinion, it would have been more appropriate if he was walked around the paddock prior to the other horses coming out. It doesn't look right him 'upstaging' the current field by being on the track with them for the actual race.
I was thinking about the whole Belmont deal last night and I couldn’t help but wonder...why would you go to the effort and expense to have an “isolation barn” at Belmont where you can monitor the contact with the horses 24 hours a day a few days before the race...if you were fully confident in your medical/veterinary tesing procedures? You wouldn’t.
Also - and I’m sure this is a question that NBC Execs are asking this morning - why would you have your strictest scrutiny of the horses in the last race of the triple crown? Why not have the same procedures at the Derby and the Preakness? This is an issue that horse racing has to fix.