I was at a meet recently and noticed how drastically slower my time was compared to my PB.
My 100m personal best was 12.17 with a 1.9 tailwind, but I only ran 12.69 into a -3.0 headwind. Do you think that a -3.0 headwind would have that much effect on a race, or did I just ran awful? How can I adjust my 100m with a -3.0 to find out what it would have been with no wind at all?