Whirl is the first foal of Salsa (Galileo) and so far her only runner. Salsa won a maiden over a mile at Thurles at three. Salsa is a full sister to three top-class performers: Hermosa, winner of the Gr.1 1,000 Guineas and the Gr.1 Irish 1,000 Guineas, Hydrangea, winner of the Gr.1 British Champions Fillies & Mares S. and the Gr.1 Matron S., and The United States, winner of the Gr.1 Ranvet S. in Australia and now a sire.

Second dam Beauty Is Truth (Pivotal) won the Prix du Gros-Chene, then a Group 2, and the Gr.3 Prix d'Arenberg. Her other winners include Fire Lily (Dansili), a triple Group 3 winner and twice second at Group 1 level, and she is also the grandam of several smart performers. Hydrangea is the dam of Wingspan (Dubawi), a Listed winner and second in last year's Gr.1 British Champions Fillies & Mares S., and of Officer, winner of this season's Listed Tetrarch S., while Hermosa has produced Trinity College (Dubawi), winner of the Gr.3 Hampton Court S. and runner-up in the Gr.1 Grand Prix de Paris. Another grandchild is Sounds Of Heaven (Kingman), a Listed winner and third in the Gr.1 Coronation S. Beauty Is Truth is a half-sister to Glorious Sight (Singspiel), a Listed winner, second in the Gr.1 Poule d'Essai des Pouliches and dam of Glycon, winner of the Gr.2 Grand Prix de Deauville and Group 1-placed.

Third dam Zelding (Warning) won the Gr.3 Prix du Bois and produced ten winners.

This is the family of Zipping (Zafonic), a half-brother to Zelding who won the Gr.2 Prix Robert Papin, was second in the Gr.1 Prix Morny and later became a stallion, of Nipping (Night Shift), winner of the Gr.3 Prix du Petit Couvert, and of the leading sire Last Tycoon.

Salsa has a 2-year-old full brother to Whirl named Kepler, an unnamed yearling full sister and a filly foal by Justify, and she has been covered by Justify again for 2026.