Understanding a wind vane

[The Indomitable DrugS]

These are the type of questions best left to the gang of eggheads at Pace Advantage I suppose.

Anyway - the wind at AQU today was "S at 13 mph" - or, a 13MPH backstretch tailwind.

The wind aided opening quarter in all six 6f races went in 22 and change - the wind hindered opening quarter in the three 8f races went in 23.57, 25.08, and 26.26.

Sky Hosoya - who set a brutally fast pace in the Grade 1 Spinaway this summer - ran a crazy fast opening quarter in the first and should never ever attempt to route again.

Gulfstream is the exact same thing as AQU - a wind from the South is a tail wind down the backstretch. Still - knowing the cross-winds is just as important as knowing the line-winds because horses race around turns. Google isn't helping me with this. Did everyone else also not pay attention in 5th grade?