Chain Of Lightning has claimed her first Group 1 win, upsetting some more-fancied rivals in the TJ Smith Stakes at Randwick.

Chris Scholtz previews the Doncaster/Derby Day meeting at Randwick on April 6 with selections and best bets plus Trial Watch and Blackbook runners.

Track conditions at Randwick will determine the chances of Joe Pride’s three T J Smith Stakes hopefuls.

Top galloper I Wish I Win returns to chase back-to-back wins in the T J Smith Stakes.

There’s a consensus between trainer Mark Walker and jockey Opie Bosson as to why star mare Imperatriz has been able to climb to the top of the sprinting ranks in the past 12 months.