How many lengths is 68 feet

[Generation XYZ]

 

What does 11 inches look like

[EddieZ]

There is 8 feet in one length

[Mazola]

So 8 1/2 lengths is approx 1.5 seconds

[SwankToliverA]

So 8 1/2 lengths is approx 1.5 seconds

Probably a good guess

[rainman2]

FYI,  many people believe that many tracks race less than 1 mile. Rumor has it pocono and the meadowlands are too.

[Meadow Ford]

According to USTA specs.
You can google it.
A race track is measured three feet out from the pylons.
IMHO
 That means that todays horses with the offset bikes travel a shorter mile then their predecessors.

[Generation XYZ]

9.5 to 10 lengths for a pacer

[dinkadoo]

9.5 to 10 lengths for a pacer

11 feet is a length if the driver is laying back 

[Meadow Ford]

Officially
Thanks google
A length is based on the size of the lead horse as measured from nose to tail.
Not counting the tail, sulky, or driver.

[SDST2009]

Not sure what happened, whether it be length or surface, but NFLD times are significantly slower since they closed a week for track maintenance a while back.