Estimating Offline yardage based on on-screen GCQuad data

[Youngun87]

So I am wondering if there is a decent way to figure out how far offline the ball ends up just using the on-unit GCQuad data.....? Would be nice if I didn't have to look at a computer or phone app to see how far offline the ball ended up landing. I think I figured out that for every one degree the ball starts R or L that translates to roughly 5 yards offline at 300 yards and 2.5 yards offline at 150 yards on a shot with zero sidespin. I am unsure of a good way to estimate how much a ball curves based on side spin or spin-tilt axis.... Trackman has a table for their "spin axis" (see below) but is this the same "measurement" as spin-tilt axis on foresight? If spin-tilt axis isn't a good way to estimate curve is there an approximate table for sidespin given carry distance or ball speed? I REALLY wish foresight gave this as an on-unit display option....

Spin Axis Examples


Optimized 150 Yard Shot

• -2 spin axis ≈ 2.2 yards of left curvature
• -10 spin axis ≈ 11 yards of left curvature
• 2 spin axis ≈ 2.2 yards of right curvature
• 10 spin axis ≈ 11 yards of right curvature

Optimized 200 Yard Shot

• -2 spin axis ≈ -3 yards of left curvature
• -10 spin axis ≈ -15 yards of left curvature
• 2 spin axis ≈ 3 yards of right curvature
• 10 spin axis ≈ 15 yards of right curvature

[andygg1986]

I shoot for having the start direction be half the number of degrees as the spin axis and having opposite directions. So if it starts 2 degrees right, then you need 4 degrees of left axis tilt to bring it back to straight. Estimating how far offline though is trickier.