Preseason - 2021-08-01 - biased: 0% 2020 scores, 100% last year's strength scores
Week 1 - 2021-08-27 - biased: 33% 2021 scores, 67% last year's strength scores
Week 2 - 2021-09-04 - biased: 50% 2021 scores, 50% last year's strength scores
Week 3 - 2021-09-11 - unbiased
Week 4 - 2021-09-18 - unbiased
Week 5 - 2021-09-25 - unbiased
Week 6 - 2021-10-02 - unbiased
Week 7 - 2021-10-09 - unbiased
Week 8 - 2021-10-16 - unbiased
Week 9 - 2021-10-23 - unbiased
Playoff 1 - 2021-10-30 - unbiased