Probability Theory is a 3 year old filly by Microphone out of the So You Think mare, Actuarial.
Last start was 5th at Newcastle on November 15, 2025 in the NZB Spring Stakes (Gr.1) over 1600 metres.
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Sale Details

Lot 50 2024 Inglis Classic Yearling Sale
Vendor: Kirks Bridge Farm, Baerami
Buyer: Domeland Pty Ltd $40,000
Microphone (AUS)
Actuarial (AUS)
Exceed And Excel (AUS)
Sung (AUS)
So You Think (NZ)
Pentasia (AUS)
Danehill (USA)
Patrona (USA)
Anabaa (USA)
Vocalist (AUS)
High Chaparral (IRE)
Triassic (NZ)
Pentire (GB)
Ecstasia (JPN)
Danzig (USA)
Lomond (USA)
Danzig (USA)
Bluebird (USA)
Sadler's Wells (USA)
Tights (USA)
Be My Guest (USA)
Singspiel (IRE)