AU's rushing performance compared to S&P+ rush defense

I was curious on how well AU did on the ground against differently ranked rush defenses. I wanted to know how we did against comparable defenses to Oklahoma via S&P+. I ranked each rush defense in a tier based off their S&P+ rushing defense rank.

Tier 1

1.) Alabama - 26 carries 66 yds 2.5 avg
9.) LSU - 49 carries 154 yds 3.1 avg

1-1 vs Tier 1 - 75 carries 220 yds 2.9 avg

Tier 2

24.) Georgia - 32 carries 127 yds 3.97 avg TD
32.) Clemson - 41 carries 87 yds 2.1 avg TD
36.) Arkansas State - 62 carries 462 yds 7.5 avg 3 TD

1-2 vs Tier 2 - 135 carries 676 yds 5.0 avg 5 TD (obviously the Arkansas State game makes this look nicer)

Tier 3

51.) Mississippi State - 56 carries 228 yds 4.1 avg 3 TD
52.) Vanderbilt - 45 carries 271 yds 6.0 avg TD
56.) Texas A&M - 54 carries 236 yds 4.4 avg 2 TD
64.) Ole Miss - 32 carries 307 yds 9.6 avg 3 TD

3-1 vs Tier 3 - 187 carries 1042 yds 5.6 avg 9 TD

Tier 4
115.) Arkansas - 57 carries 543 yds 9.5 avg 7 TD
128.) UL Monroe - 64 carries 410 yds 6.4 avg 5 TD

2-0 vs Tier 4 - 121 carries 953 yds 7.9 avg 12 TD


So against top 40 rush defenses life wasn't great. Granted in the 2 games we won we played one healthy QB the majority of the time which obviously has a big affect but our rushing attack just wasn't as dominant. However against the bottom half tiers we were nearly unstoppable.

So where does Oklahoma rank in rush defense according to S&P+? 55th. Putting them in Tier 3 where we averaged 47 carries 261 yds 5.6 avg 2 TD. I don't know how healthy White will be or how well our defense can hold up to this passing attack but I feel pretty confident this will be a game no matter what because we will have a tremendous success on the ground.