The trainer of a gelding inadvertently given female hormone treatment before he won a $100,000 race has been fined $6000.

Connections of Lautaro have also lost the $54,000 prize money the Andrew Dale-trained gelding won in the Kia Ora Stud Handicap at Scone on May 13 before testing positive to Altrenogest.

Altrenogest is an oral progestogen used to regulate the cyclic activity of fillies and mares.

In a statement, Racing NSW stewards said they were comfortably satisfied "inadvertent contamination" had led to Lautaro's exposure to Altrenogest.

A stewards' inquiry was told that in the lead-up to the race, the Albury-based gelding was stabled at Scone between two female horses routinely treated with the steroid hormone.

Godolphin's Interlocuter, who was ridden by Tye Angland, was elevated to first place following the decision to disqualify Lautaro.

It takes Darren Beadman to 36 wins for his two-month stint as head trainer of the racing superpower's Australian operation.