Ok, for Terang, if you layed the horse with the jockey with the lowest strike rate recorded you would have had 100% success with your lays.

Top 5 worst jockey's in Vic (at least 100 rides):
(lowest to highest strike rate)
F ALESCI 3.9 (1 winner every 25.9 rides)
A MALLYON 4.2 (1 winner every 23.8 rides)
M CARSON 4.3 (1 winner every 23 rides)
MS C PULS 4.5 (1 winner every 22.3 rides)
R BOOTH 4.7 (1 winner every 21.1 rides)