I keep seeing various articles on this topic that don't quite spell it out completely so here goes.
You may have noticed that the Big Ten East has three of the best teams in the nation. According to our All-Division Strength power rating 3 of the top 4 teams in college football are from the Big Ten East:
# Team rec Rating Offense[rnk] Defense[rnk]
1. Michigan 8-0 79.47 65.20 [ 9] -14.27 [ 2]
2. Oregon 6-1 78.50 67.59 [ 4] -10.91 [ 9]
3. Penn State 6-1 78.45 66.33 [ 8] -12.12 [ 6]
4. Ohio State 7-0 77.94 58.36 [ 20] -19.58 [ 1]
In the ESPN FPI, the top three, period are from the Big Ten East.
So the order changes but it's possible that all three deserve to be in the Playoff. Odds are, though, that only one makes it. Maybe two (since it happened last year) but only one for sure.
Ohio State just beat Penn State but the Buckeyes were playing at home. The have to travel to Ann Arbor to play Michigan, which gives the Wolverines the advantage. But Michigan has to play at Penn State, meaning it's very possible that all three end up at 8-1 in the Big Ten, and only one team can make the Big Ten Conference Championship Game. And that team will have a virtual ticket to the Playoff.
The Big Ten tiebreaker rules are, like all college football conference tiebreaker rules, written to be as incomprehensible as possible. Instead of just saying "what if three teams are tied and they all beat each other?" so you know where to start, they make you wade through several pointless steps that almost never apply, written so poorly that you might think they do apply. For example:
(a) When arriving at a group of tied teams while comparing records, use each team’s record against the collective tied teams as a group, rather than record against the individual teams.
Just ignore all that crap. The relevant rule in a 3-way, A beats B beats C beats A situation, is this one:
5. The records of the three (or more) teams will be compared based on the best cumulative conference winning percentage of non-divisional opponents.
Meaning the combined record of the teams that they beat in the West division.
Ohio State, Michigan, and Penn State play mostly the same Big Ten teams. Of their nine games, six are games against the other teams in the East. So take away those six games—which includes games vs. each other—and you have three Big Ten games left, from teams in the West. Here they are (NOT in order that they play):
- Ohio State: Purdue, Minnesota, Wisconsin
- Michigan: Purdue, Minnesota, Nebraska
- Penn State: Illinois, Iowa, Northwestern
I've color-coded it in case you missed the obvious: Ohio State and Michigan have the same damn Big Ten schedule except a) they play each other, and b) Ohio State plays Wisconsin while Michigan plays Nebraska.
Right away, which team does it seem has the advantage in a 3-way tie, Michigan or Ohio State? Clearly the Buckeyes, since Wisconsin is likely to finish well ahead of Nebraska.
The only question becomes: Can Penn State's opponents add up to more than Ohio State's?
It looks good at a glance with Iowa in the mix for the Lions, but Illinois and Northwestern are piss-poor so Penn State might not even match Michigan's total. The current win aggregate for each team's West opponents is: Ohio State 6, Michigan 5, Penn State 5, Here's how it looks projected into the future:
- Ohio State: Purdue(4) + Minnesota(4) + Wisconsin(7) = 15 wins
- Michigan: Purdue(4) + Minnesota(4) + Nebraska(4) = 12 wins
- Penn State: Illinois(3) + Iowa(7) + Northwestern(1) = 11 wins
With Penn State in last position, Ohio State is almost certainly the winner of this tiebreaker because there's very little chance that Nebraska finishes ahead of Wisconsin to put Michigan in front. Of course things can change but it looks like the Buckeyes have a big advantage in winning the 3-way tie.
Update post-week 10: New figures show Penn State with an advantage here, ahead of the Penn State-Michigan game:
- Ohio State: Purdue(3) + Minnesota(3) + Wisconsin(6) = 12 wins
- Michigan: Purdue(3) + Minnesota(3) + Nebraska(3) = 9 wins
- Penn State: Illinois(4) + Iowa(7) + Northwestern(3) = 14 wins
Now Penn State is in the driver's seat of a 3-way tie, should they beat the Wolverines. All of Ohio State's teams were upset, as were all of Michigan's (since they share two teams), and Illinois and Northwestern really came through for the Nitanny Lions.
If Michigan has to have one loss, who should it be to?
Here's an interesting question: given the above, would it be better for Michigan to lose to Ohio State and beat Penn State? If they had to lose to one or the other, I'd say yes. Because if Ohio State gets in at 12-1 (due to 3-way tie), there might not be a 2nd Big Ten team chosen, and if there is one they would go with Penn State, who in that scenario beats Michigan head-to-head.
But if the Wolverines beat Penn State, and lose to a 13-0 Ohio State, it's much more likely that a 2nd Big Ten team is chosen and that would clearly be the Wolverines. Assuming their game vs. Ohio State was pretty close, it gives them better odds than being chosen in the 3-way tie scenario.
This is clearly a totally hypothetical situation—Michigan is going to try to beat everyone, and regardless of the Playoff ramifications they'd probably choose to beat the Buckeyes anyway over Penn State—but for Penn State, who to root for between Michigan and Ohio State is a real question I'll cover in a bit.
What if tiebreaker rule #5 is a tie?
...And they all end up with, say, 13 wins from their West opponents?
Then they go through the top West teams—not necessarily one by one, but by groups of teams with the most wins—and compare based on that, and this time the foes don't have to be common foes. If Wisconsin has the most wins, then Ohio State gets the nod. If Iowa finished on top, Penn State is chosen.
Michigan looks SOL here because they don't play one of the standout teams, but for Michigan end up tied with Ohio State, Nebraska would have a record equal to Wisconsin's, and they'd still be alive. That seems doubtful, which leaves Ohio State and Penn State as the only realistic tie scenario under rule #5. If that happens we go to the 2-team tiebreaker where head-to-head chooses Ohio State. Again the Buckeyes have the advantage.
Who should Penn State root for assuming they beat Michigan?
Obviously both Michigan and Ohio State are still thinking 13-0. Only Penn State is rooting for a 3-way tie. But would a 13-0 Ohio State be better for them? Assuming Penn State beats Michigan, maybe Ohio State beating Michigan—and knocking the Wolverines from Playoff contention—is better for the Lions. An 11-1 finish with the loss to Ohio State and a win over Michigan might put the Lions in a position like Ohio State was in last year. The Buckeyes needed a lot of help to finish #4 and so would the Nittany Lions in the same scenario this year. But that might work out better than the 3-way tie which just doesn't look good right now for Penn State. (Update: though now, after a few weeks, it does)
Of course we'll know a lot more about the West's teams by the time Michigan and Ohio State play, and Penn State fans who have done their homework will know whether to root for Michigan to create the 3-way tie, or for Ohio State to run the table and make Penn State's solitary loss look better. If they're way behind in the 3-way tie scenario—their West opponents have faltered too much—they should root for Ohio State to beat Michigan. And obviously they have to beat Michigan themselves, too.
For their part both Ohio State and Michigan still control their own destiny, which is why all the 3-way tie articles appear on Penn State sites or articles about how Penn State might still win the Big Ten. But if Penn State beats Michigan at home, look for Wolverine pages to take a sudden interest in the tiebreaker rules. Ohio State fans can wait the longest before wading through the legalese.
Hopefully it doesn't get to step 8, winner-by-lottery. Most conferences have "placement in College Football Playoff Committee rankings" as the last resort, but not the Big Ten.