"She seems to have come through the whole thing well and wasn't sore this morning," said co-trainer Mark Purdon.
"So while it wasn't a great thing to happen, we think she will be able to start this Friday.
"The main thing is she seems all right and Dominique Dowding [ATC chief executive] rang to talk over the whole situation with us, which we appreciated."
Dowding says while the incident shocked the ATC they are confident the nail didn't come from one of the two construction sites at Alexandra Park where two apartment buildings are being built.
"While we can't be certain we think that is very doubtful," says Dowding.
"The construction sites are 8-9 metres back from the track and they are at a stage where nails aren't being used, mainly metal and bolts.
"The guys here who looked at the nail said it was very encrusted with track surface and we are thinking there is a chance it was in the surface material we put on the track last week.
"Either way, the safety of the horses and the drivers is paramount to us and the staff here have been right around the track with a metal detector three times today and found nothing else."
Dowding says the float park area where the horses arrive and the stabling area will also be scanned.
Princess Tiffany has a golden opportunity to remain unbeaten and claim another group one in the $150,000 Sires' Stakes Final this Friday, drawing barrier three while her two stablemates have drawn the second line over the 1700m.
Winterfell will also be short odds in the $100,000 Northern Trotting Derby after he drew the ace but the $100,000 Messenger looks more spicy with a host of the big names drawing the front line.
Last Friday's Taylor Mile winner A G's White Socks has barrier two in the 2700m group one, More The Better (three), Eamon Maguire (four) and Star Galleria (seven).
Speeding Spur has been the big win in the draws for the $150,000 Rowe Cup, drawing handy on the front line over 3200m whereas defending champion Temporale and Enghien are drawn wide and last Friday's Anzac Cup winner Lemond will start from the second line.
Nailed
• Top juvenile pacer Princess Tiffany was found to have a nail in her hoof after winning at Alexandra Park last Friday.
• ATC officials are confident it did not come from construction sites at Alexandra Park.
• The entire racing surface, stabling area and float park will be covered by a metal detector before Friday's Rowe Cup meeting.