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Originally Posted by SentToStud
MY understanding is this...
If you assume
1. Mile turf course
2. both straights are 1/4 mile and both turns are 1/4 mile
That's 2640 ft of turns in a 1 mile race. Radius of one turn = 2640 / 3.14 /2 = 420 ft
Move the rail out 20 feet, circ = 440(new radius) * 3.14 *2 = 2765 ft. So on a "20 ft out rail" they run 125 ft more on the turns than on a "Hedge rail" track. 125 ft is how far the starting gate is placed for the start of a '20 ft out' rail start past the start of a 'hedge rail' mile.
My understainding is:
1. Starting gate is moved.
2. Poles don't move.
3. Timers are not connected to poles, they're clipped to the rail.
4. They do move the timers.
1/8 mile is 660 ft. 125 feet is about 1/5 or so of 1/8 mile or about 2.5 seconds. That's roughly how much longer in a mile race timewise they run on the turns in a 20 ft out rail vs a hedge rail.
I got a C- in Chemistry so I could be very very wrong.
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Saratoga people told us 2 years ago that they DO NOT MOVE the starting gate in the added on distance. Gate is kept at the same point (mile race gate position is never moved) except for grass wear...and it's only a matter of 10-25 feet.