Win rate and top-3 rate will show once this horse has raced.
Its family tree gives a few clues. Groovy Train is by Rajasinghe, and its mother is a mare sired by Cockney Rebel, a horse whose name has been around British racing for years. Pedigree is never a guarantee, but it's the closest thing a newcomer has to a preview, a bit like reading the reviews before seeing a film you've never heard of.
The horse is trained by Richard Spencer, based in Newmarket, Suffolk, which many people call the headquarters of British horse racing. Newmarket is home to hundreds of horses and the people who look after them day to day. Spencer's yard has sent out 30 winners so far this season, which tells you the operation is busy and productive. For a debutant, a trainer who is winning regularly is a reassuring sign.
So what should a newcomer take from all this? Groovy Train is a blank page. It could turn out to be something special or simply a useful first outing, and the only way to find out is to watch it run. For anyone new to the sport, a debut is a fine place to start paying attention.