Calculus (JPN) Horse
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About
Calculus is a 2yo bay colt from Japan trained by Hiroki Koga. He is by Mikki Isle out of Primer Grado. Calculus has yet to break his maiden, having finished unplaced in three starts. In his most recent race at Niigata on 26 July 2026, he was ridden by Keita Tosaki and finished fourth behind Spinning Globe.
Race Record
| Event Summary | Runner Stats | Rank |
|---|---|---|
| Niigata 26-Jul-26 1200m R3 Md $870,000 (of $11,050,000) Barrier 6, Winning Time: 01:11.200, SP: 8.50 1st Spinning Globe ( J Collett 126 ) 2nd Hanna Pearl ( Y Yoshida 121 ) 5.00L 3rd Rose Of Japan ( M Matsuoka 121 ) 5.10L 4th Calculus ( K Tosaki 121 ) 5.60L See full results | K Tosaki 54.9kg 5.60L | 4 (15) |
| Tokyo 23-May-26 1600m HEAVY R1 Md (of $11,280,000) Barrier 15, Winning Time: 01:38.800, SP: 2.63 1st Thorough ( D Sasaki 121 ) 2nd Iron Pike ( N Yokoyama 121 ) 0.50L 3rd Ho O Laurentia ( S Sato 115 ) 1.75L 9th Calculus ( M Dee 121 ) 6.40L See full results | M Dee 54.9kg 6.40L | 9 (15) |
| Tokyo 03-May-26 1600m GOOD R1 Md $1,500,000 (of $11,280,000) Barrier 4, Winning Time: 01:38.700, SP: 5.50 1st Blue Thermal ( Y Hara 121 ) 2nd Efcharisto ( K Yokoyama 121 ) 0.75L 3rd Calculus ( M Dee 121 ) 3.75L See full results | M Dee 54.9kg 3.75L | 3 (15) |