The trainer is Jack Channon, operating out of West Ilsley in Berkshire — a yard that has been in fine form, sending out 46 winners already this season. That kind of output isn't luck; it tells you the horses are fit, well-prepared, and arriving at the track ready to run. When a yard is firing like that, a debut runner tends to show up in decent shape, and there's every reason to think Topaz will be given every chance to perform.
Beyond that, the honest answer is that first-time runners are something of an unknown quantity. Some horses take to racing immediately; others need the experience before they find their stride. What Topaz does today will tell us far more than anything written here — watch closely, because this is where the story starts.