[lightspeed2011]

Thanks Tom,

I understand the principles - I don’t understand these figs - looks like a moving par time or am I mixing apples and cement blocks.

I get 4 different par times from the same horse in 2 different races depending whether I use adj time or use shape (calcs below).

bris faq on shapes:

“.. relative to the par for the final time.”

“… how fast the leader ran relative to the average leader time for the race's final time. “

“This enables the user to quickly identify which segment(s) of the race were fastest and slowest (relative to each call's average pace for the final time).”

“For example, a "+6" Race Shape represents a pace which is three (3) lengths faster than normal.”



Is shape strictly a WITHIN THIS RACE measurement?
That it’s based on leader to par would seem that would not to be the case.

let me do this a different way

from DRF data file for gp 8.5f turf and using 5 lengths per sec:

bris par at 6f is 79 - not sure on the actual time used for par


race 1
known:
6f leader time = 75.6
horse bhnd 10 (2 sec)
horse pace 59 - 41 slow (20.5 lengths or 4.1 sec)
shape -13 (6.5 lengths or 1.3 sec)

calced:
horse adj time = 77.6 (75.6 + 2)
par time from horse pace = 73.5 (77.6 adj time - 4.1 pace diff)
par time from leader shape = 74.3 (75.6 leader time - 1.3 shape diff)


race 2
known:
6f leader time 71.1
horse bhnd 4 (0.8 sec)
horse pace 93 - 7 slow (3.5 lengths or 0.7 sec)
shape +11 for leader (5.5 lengths or 1.1 sec)

calced:
horse adj time using bhnd = 71.9 (71.1 + 0.8)
par time from horse pace = 71.2 (71.9 adj time - 0.7 pace diff)
par time from leader shape = 72.2 (71.1 leader time + 1.1 shape diff)