Jockey Weights

[sekrah]

Is there a TG formula to adjust for weights? i.e. For a mile race, how many lengths would 7 extra pounds affect a horse?

[TGJB]

There\'s a guide to all this on this site, and with every set of sheets. 5 pounds is worth a point, a point is worth about a length at 5f, gradually going up to about 2 lengths at a mile and a quarter.