I am creating a spreadsheet to track pitch counts in Little League. There are
new rules about a number of days rest required depending on pitch counts. The
criteria is below:

If a player pitches 61 or more pitches in a day, three (3) calendar days of
rest must be observed.
If a player pitches 41 - 60 pitches in a day, two (2) calendar days of rest
must be observed.
If a player pitches 21 - 40 pitches in a day, one (1) calendar days of rest
must be observed.
If a player pitches 1-20 pitches in a day, no (0) calendar day of rest must
be observed.

I writing an IF statement to give the players next available date based on
this criteria. this is what I have so far - not sure where the error in my
formula is -it may be in the second IF part where I am looking for a range
between two number. My formula gives back TRUE.

cell D15 contains number of pitches, D9 is the date pitched.

=IF(D15=61,D$9+4,IF(D15=41,D15<=60,""))


Appreciate the help!!