21 days rest vs 8

Rayo Vallecano has had 21 days since their last match; Athletic Club has had 8. A 13-day gap in recovery going into the same 90 minutes. This number is never published anywhere — it only exists if you pull both clubs' fixture lists and subtract, which is why it doesn't reach a price the way an injury or a suspension does. It matters most in the last half hour, so it reads through to second-half and late-goal markets more cleanly than it does to a full-match line. A gap this size is the top end of what a league calendar produces. Rest is a real input and not a result: it says who should be fresher, not who is better.