• To replicate the college football SRS ratings from sports-reference.com, use the following settings: Home Adjustment = Unchecked, Minimum Win = 7, Maximum Win = 24
• To replicate the NFL SRS ratings from pro-football-reference.com, use the following settings: Home Adjustment = Checked, Minimum/Maximum Win = Unchecked
• The other sports-reference.com sites don't use scoring caps or home adjustments. Home Adjustment = Unchecked, Minimum/Maximum Win = Unchecked
The previous rules are all explicitly defined here, but feel free to experiment: SRS Calculation Details