In the regular season, the Eagles defense allowed just 5.10 Adjusted Net Yards per Attempt to opposing quarterbacks. Therefore, Brady was a whopping 6.32 ANY/A above expectation; over the course of 49 dropbacks, it means Brady produced 310 Adjusted Net Yards above expectation.
The beauty of this formula is that it inherently adjusts for both schedule and era. Below are the best passing performances in Super Bowl history. Nobody can match the efficiency over such a high number of passing plays as what Brady did last night:
And what Nick Foles did last night was pretty darn good, too. He finished at +168, which would have been +213 if not for the tipped interception he threw last night. Foles was brilliant last night, but in a losing effort, Brady was even better — except on one play. Brady also set a record for most passing attempts in a playoff game while averaging over 10 yards per attempt.