I broke it down into quarters of the season and there's not much variability in the results.
WEEKS 1-4
p:AL and AD and week<=4
ATS: 69-56-1 (0.31, 55.2%)
WEEKS 5-8
p:AL and AD and 5<=week<=8
ATS: 107-81-3 (2.26, 56.9%)
WEEKS 9-12
p:AL and AD and 9<=week<=12
ATS: 108-90-2 (0.29, 54.5%)
WEEKS 13-17
p:AL and AD and 13<=week<=17
ATS: 128-111-3 (-0.28, 53.6%)