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In 1974, Terry Bradshaw was not very good. He threw for just 785 yards on 148 pass attempts, while throwing only 7 touchdowns against 8 interceptions. That translates to a 2.92 Adjusted Net Yards per Attempt average, which is terrible even for 1974. He ranked 25th in ANY/A among the 32 quarterbacks with at least 120 pass attempts. Given the league average of 3.91, that means Bradshaw finished the year with a Relative ANY/A of -0.99.

That’s the worst of any quarterback who wound up winning the Super Bowl. But that doesn’t mean Bradshaw wasn’t a big part of why Pittsburgh won its first title. He was excellent in the team’s three playoff games, particularly in Pittsburgh’s first win.

  • Against Buffalo, Bradshaw completed 12 of 19 passes for 203 yards, with 1 TD and no interceptions, and he was not sacked. In the regular season, the Bills pass defense allowed 2.71 ANY/A, making them one of the best in the league. But Bradshaw averaged 11.74 ANY/A over 19 dropbacks, or 171 Adjusted Net Yards over expectation.
  • The next week, in Oakland, Bradshaw was against above-average. Bradshaw went 8/17 for 95 yards with one touchdown and one interception and no sacks. That may not sound great, but it translates to a 4.12 ANY/A average, which is better than how the average quarterback fared against Oakland that year (2.82). Over 17 attempts, that’s worth 22 ANY over average.
  • In the Super Bowl against Minnesota, Bradshaw went 9/14 for 96 yards with a touchdown, no interception, and two sacks for 12 yards. That’s a 6.50 ANY/A average against a defense that allowed 3.45 ANY/A during the regular season, so Bradshaw gets credit for producing 49 Adjusted Net Yards over average.

So in the Division Round of the playoffs, Bradshaw was 171 ANY over average; in the conference championship game, he was 22 ANY above average, and then in the Super Bowl, he was 49 ANY over average. So throughout the postseason, he was 242 ANY over average. Among the 49 Super Bowl-winning quarterbacks, [1]In Super Bowl V, Earl Morrall led the Colts on a second half comeback victory over the Cowboys in relief of Johnny Unitas. Two years later, Bob Griese was the Dolphins starter in Super Bowl VII, … Continue reading that ranks as the 27th best performance. That may not be great, but (1) most Super Bowl-winning quarterbacks have excellent postseasons, and (2) he was one of the worst quarterbacks in the NFL during the regular season!

I went ahead and calculated the postseason numbers for the quarterback for the Super Bowl champion in each season. Let’s use Joe Montana in 1989 as an example, since he had the best playoff run ever. Playing for the 49ers, his *regular season* Relative ANY/A was +3.07, which means he was 3.07 ANY/A above average (that, combined with his scorched earth playoff run, is why he ranks number one here).

In the postseason, he threw 84 pass attempts. Montana didn’t play in the Wildcard round, but he provided 233 ANY of value over expectation — i.e., based on his opponent’s ANY/A allowed during the regular season — in that game. In the NFCCG, he was at +130, and in the Super Bowl, he was at +280. That totals to 643 ANY of value added in the postseason, the best ever.

RkQuarterbackYearTeamRANY/AAttWildcardDivCCGSBTotal
1Joe Montana1989SFO3.0784233130280643
2Joe Flacco2012BAL0.3913215221455163584
3Joe Montana1988SFO1.1797127218203548
4Troy Aikman1992DAL1.4996120142211473
5Terry Bradshaw1978PIT2.028218951224464
6Aaron Rodgers2010GNB1.7714077207-1166449
7Jim McMahon1985CHI1.257018162169412
8Kurt Warner1999STL3.13125223-7178394
9Bart Starr1966GNB4.08590220149369
10Phil Simms1986NYG0.036114824196368
11Joe Theismann1982WAS1.1595167855242347
12Steve Young1994SFO2.87913886223347
13Terry Bradshaw1979PIT1.288611690135341
14Doug Williams1987WAS2.28863543252329
15Eli Manning2011NYG1.55171139137-862329
16Drew Brees2009NOR2.6610414456122323
17Ken Stabler1976OAK3.387311268141321
18Troy Aikman1995DAL1.818411710599321
19Jim Plunkett1980OAK-0.2210430-146168244297
20Ben Roethlisberger2005PIT2.199916752156-88287
21John Elway1998DEN1.819010819158285
22Bart Starr1967GNB0.508412539119283
23Mark Rypien1991WAS3.1679-46185135274
24Eli Manning2007NYG-0.7012890822471267
25Joe Namath1968NYJ1.74810128138265
26Brett Favre1996GNB1.47782014890258
27Terry Bradshaw1974PIT-0.99521712249242
28Joe Montana1981SFO1.25951415050242
29Joe Montana1984SFO2.93116-1222227237
30Len Dawson1969KAN0.4067837378234
31Troy Aikman1993DAL2.01898212220225
32Johnny Unitas1970BAL0.336187111-3195
33Tom Brady2004NWE1.2988-4213797192
34Roger Staubach1977DAL2.4870534881182
35Jeff Hostetler1990NYG0.8783633575173
36Terry Bradshaw1975PIT1.3962-6370164171
37Tom Brady2003NWE0.74126618142166
38John Elway1997DEN1.32102657027-2160
39Russell Wilson2013SEA1.2275-96897157
40Brad Johnson2002TAM1.2199128644141
41Trent Dilfer2000BAL-0.748354174422137
42Ben Roethlisberger2008PIT-0.509736108-12132
43Tom Brady2014NWE1.3413955955119
44Roger Staubach1971DAL3.886176-3764103
45Jim Plunkett1983RAI0.148883-274399
46Bob Griese1973MIA1.913394-394196
47Tom Brady2001NWE0.201022114053
48Peyton Manning2006IND2.55159-71-42906441
49Earl Morrall1972MIA2.74284206

Peyton Manning was not very good during the 2006 postseason — at least statistically — and it shows here. In fact, he has perhaps the worst passing stats of any Super Bowl winning quarterback, when you consider the number of pass attempts he had verus Morrall. That said, it’s not like Manning was bad in the playoffs: he still ranked as above-average, in large part because his last three games came against the top three pass defenses in the NFL. After adjusting for average, Manning was bad by Super Bowl winning QB standards, but still above average. Interestingly enough, Tom Brady 2001 is just behind him, and even Brady 2014 isn’t too far behind.

Also pretty interesting: the worst two Super Bowl performances by the winning quarterback, at least by this method, came from Ben Roethlisberger. We all remember how much he struggled in Super Bowl XL, but I suppose years of watching his game-winning drive and touchdown to Santonio Holmes has overshadowed the rest of his performance in Super bowl XLIII. Roethlisberger was great on the last drive (6/8, 83, 1) but he was just 15 of 22 for 173 yards with no touchdowns and an interception against a pass defense that ranked 26th in the NFL.

Anyway, I’m of course more interested in your thoughts. There’s a lot of fun and useful data in here, I hope, so enjoy!

I will also leave one disclaimer: these are based purely on stats, and obviously stats don’t capture everything. One clear example is Jim Plunkett’s 1980 playoffs. A quick look at his line shows a disaster in the division round — a -146 score is in fact the worst in any single game by any quarterback in the table — followed by two great games. Plunkett was no star (hey, he was below-average during the regular season), but he deserves a pass here. His Division round game came in Cleveland in one of the worst weather games ever, and that ended in Red Right 88.

References

References
1 In Super Bowl V, Earl Morrall led the Colts on a second half comeback victory over the Cowboys in relief of Johnny Unitas. Two years later, Bob Griese was the Dolphins starter in Super Bowl VII, but threw just 15 passes all postseason; that’s because Morrall — yes, that Morrall — was the team’s starter for most of the year and in the playoffs, finishing the postseason with 24 passes. I’ve decided to count Unitas as the Colts 1970 starter and Morrall as the Dolphins 1972 starter.
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