This race has long been considered one of the best weight-for-age races for fillies and mares in Tasmania. After the 2013 running it was upgraded from a Listed race to a Group 3 race which made it the first Tasmanian race to be upgraded on merit by the Pattern Commiteee. Two years earlier the weight for-age fillies and mares Bow Mistress Trophy (1200m) was upgraded from Listed to a Group 3 but that was a trade-off with the Tasmanian Derby being downgraded from a Group 3 to a Listed race.
Vamos was foaled in 1947 from a mare called Imshi. Her sire was Beau Son. She was owned by Tom Johnston and Harry Johnston (not related to each other) and was trained by Ken Evans at Launceston.
She raced in the 1950s and was one of the best staying mares in Tasmania, winning back-to-back Launceston Cups in 1954-55. She carried 9st 10lb (61.5kg) to win the 1955 Cup which is still the record for the highest winning weight for that race. Jockey Bill Dunstone rode her in all her feature race wins. She was very versatile winning over distances from 1200m to 2600m and has been inducted into the Tasmanian Racing Hall of Fame for her feats.