The brief-but-frustrating Australian career of imported stayer Tac de Boistron is over.

The brief-but-frustrating Australian career of imported stayer Tac de Boistron is over. Trainer Mick Kent says the stayer will be returning to Europe. The five-year-old is a dour stayer at best on wet tracks and Kent reckons he's better suited back in Europe, where he raced before coming to Australia after being purchased by Darren Dance’s Australian Thoroughbred Bloodstock midway through last year. MK says: “I said to Darren, just take him back...there’s the Cadran and all those (suitable) races...I do all the heart rate, lactate stuff and he’s just an aerobic machine. Maybe he’s too aerobic for here...We just never got any (soft) ground either. Every time we galloped him he was jarring up, bashing his joints all the time.” The Prix du Cadran is a 4000-metre race run at Longchamp in France on Arc de Triomphe weekend in early October.