Both. We have In-Season accuracy scores going back to the 2009 season. Our Preseason accuracy scores go back to 2010. However, we keep these accuracy scores separate from each other since many experts that do draft rankings do not offer weekly rankings.
Also, we believe In-Season accuracy scores provide a more significant analysis of advice quality since there’s simply much more data to work with (16 cheat sheets vs. 1). We suggest looking at both sets of scores, but caution you against putting too much weight against Preseason accuracy.