The more accurate measurement is 0.167 of a second which translates to 6.09 lens per second.

In regard to the 1kg = 1 len per 1,000 not sure that this is correct. For instance Don Scott claimed the measurement should be 1.5kgs per length, while others have used a variable kg = a length depending on the overall distance of the race.

Of course, what has been taken into account is the pace which translates into energy usage, e.g. the slower the pace, the less the energy usage. That's why for instance God's Own was able to win the Guineas because of the crazy early pace with the leaders stopping. His last 600m sectional was quite slow - it's just that because of the interference earlier in the race then most thought it a super run, while in fact it was quite deceptive.

Not saying it wasn't a good run, it was but the way it finished was deceptive as it ran its last 600m in 37.64s over two seconds slower than the winner's time in the Toorak over the same distance at the same meeting.