So
@LittlePig and I covered the East above.
The West is, to put it mildly, MICH more complicated.
Even last place Purdue (1-5) might have some theoretical mathematical chance because nobody has five wins yet so each one could end up 4-5 or worse and Purdue would end up 4-5 if they win out.
4-2 Iowa, vsRU, vsIL, @UNL:
The Hawkeyes control their own destiny. If they win our, they'll go to Indy. A loss to either RU or IL would only keep them out if Minnesota managed to win out.
3-3 Minnesota, @PU, @tOSU, vs UW:
If they win out, all they need is an Iowa loss because they already own the H2H tiebreaker over UNL and IA and winning out would take out Wisconsin. The major problem is that winning out requires winning in Columbus. The last time the Gophers won in Columbus Bill Clinton was President and the time before that it was Harry Truman.
3-3 Wisconsin, vs NU, vs UNL, @MN:
The loss to Iowa is crushing them. They can't get to Indy unless Iowa loses twice.
3-3 Nebraska, vsUMD, @UW, vsIA:
The Cornhuskers more-or-less control their own destiny because winning out would take out the Badgers and put them into no worse than a tie with the Hawkeyes. At that point all they'd need would be a Minnesota loss and the Gophers go to Columbus next weekend.
The rest:
- 2-4 Illinois and Northwestern
- 1-5 Purdue
These teams may be mathematically alive but I think they are practically out.