Every number says whose it is. No sport's numbers are validated as better than the bookmakers' yet. How we grade
How each source has done, last 30 days
Soccer
Model + bookmakers blend (ours): its favourite won 59% of 375, after saying 53%: too cautious · Model (ours): too few to say (7) · Bookmakers or data provider: too few to say (1). Over 463 matches in the last 60 days, the bookmakers' closing prices were slightly more accurate than ours.
NFL/College
Bookmakers: their favourite won 66% of 237, after their prices said 68% · Model (ours): too few to say (2) · Default (home side): too few to say (2).
MLB
No graded model of ours yet · Bookmakers: their favourite won 56% of 34, after their prices said 56%.
Basketball
No graded model of ours yet · Bookmakers: too few to say (16).