Klawervlei Stud’s well bred young sire Royal Mo has enjoyed a great strike rate with his runners over the past few weeks and the former G3 Robert B. Lewis Stakes winner came up with a third first crop winner at Kenilworth on Monday afternoon.

Royal Mo’s two-year-old son Rule Of Thumb was sent off favourite to land Monday’s fourth race, the www.caperacing.co.za Maiden Plate (1400m), and he duly obliged in smart style.

The Justin Snaith trained gelding hit the front 100m from home and he powered away to score impressively by two lengths.

Remarkably, sons of Royal Mo filled the first three placings in Monday’s fourth race, with Rule Of Thumb relegating his paternal half-brothers Royal Port Louis and Matsuyamo to second and third placings respectively. Both Royal Port Louis and Matsuyamo look poised to win soon, with their sire himself going from strength to strength,

Bred by Klawervlei Stud, Rule Of Thumb has done nothing wrong in his brief career thus far, with the promising two-year-old running third on debut, behind the promising Le Mans, before finishing second on his only other appearance.

He joins a growing list of promising winners for Royal Mo, with others including Royal Aussie and Mo Jive.

This list looks sure to growing further in coming weeks, with Royal Mo now sporting the eye catching statistic of having six winners or placed runners from just nine starters.

A son of outstanding sire, and emerging sire of sires, Uncle Mo (whose other progeny include US classic winners Nyquist and Mo Donegal), Royal Mo’s granddam Irish Linnet won no fewer than 19 races including the G2 New York Handicap. Irish Linnet was sired by Seattle Song, who also is broodmare sire of US Horse Of The Year and outstanding sire Tiznow.

Picture: Rule Of Thumb lead home his paternal half-brothers Royal Port Louis and Matsuyamo in the fourth race at Kenilworth today (Wayne Marks).