Have the following formula for each day of the week; however the Saturday (and Saturday only) is not functioning properly. It is not looking up only the Saturday values, but rather any value in the entire range. Every other day of the week: 1,2,3...is working correctly.

=SUMPRODUCT((WEEKDAY($A$3:$A$807,2)=6)*($T$3:$T$807))/SUMPRODUCT((WEEKDAY($A$3:$A$807,2)=6)*($U$3:$U$807))

Any ideas?