Goulburn trained two year old Aylmerton caused an upset win in a dramatic Group 2 $300,000 UNSW Todman Stakes (1200m) at Randwick today.

Aylmerton, above in blue colours, wins the Todman Stakes at Randwick. Photo by Steve Hart.

Alymerton ($17) was only having his second race start but was able to sneak up along the inside fence for Andrew Adkins to down the Queenslander Ef Troop ($3.50) with Tchaikovsky ($16) running home for third.

But all the post attention on jockey Hugh Bowman who was dumped from the $2.10 favourite Performer at the 150m mark when the Exceed And Excel colt ducked out sharply.

Early reports was that Bowman was moving on the track but he will be unable to take his mounts for the remainder of the day.

Sky Sports Radio reported that Bowman is suffering from concussion and is out for the rest of the day.

The Jean Dubois trained Aylmerton scored on debut with a win over 1200m at Canterbury on February 21 and remained unbeaten from two starts with his win today in the Todman Stakes.

Aylmerton is now a $13 chance for the Group 1 $3.5m Longines Golden Slipper Stakes (1200m) at Rosehill on March 24 while the Chris Waller trained Performer is now an $8.50 chance.

The Magic Millions 2yo Classic winner Sunlight is now a clear cut Golden Slipper favourite at $4 with Ladbrokes.com.au ahead of Estijaab at $6 and the Blue Diamond Stakes winner Written By at $7.50.