Update - Conference records at 2/24/25, plus remaining opponents:
7. Illinois (9-8) ... Iowa, @Mich, Purdue
8. Oregon (9-8) ... USC, Indiana, @Washington
9. Nebraska (7-9) ... Michigan, Minnesota, @Ohio St, Iowa
10. Indiana (7-9) ... Penn St, @Washington, @Oregon, Ohio St
11. Ohio St (7-10) ... @USC, Nebraska, @Indiana
12. RU (7-10) ... @Michigan, @ Purdue, Minnesota
13. Minnesota (6-10) ... Northwestern, @Nebraska, Wisconsin, @Rutgers
14. USC (6-10) ... Ohio St, @Oregon, Washington, @UCLA
15. Iowa (6-10) ... @Illinois, @Northwestern, Michigan St, @Nebraska
16. Northwestern (5-11) ... Iowa, UCLA, @Maryland
17. Penn St (5-12) ... @Indiana, Maryland, @Wisconsin
18. Washington (4-12) ... @Wisconsin, Indiana, @USC, Oregon
RU has arguably the most difficult remaining schedule, with road games against 2 of the top 6 teams in the standings. Only Illinois and Penn State play 2 of the top 6 teams in the standings (no other team plays more than 1 of the top 6 teams), and each of them get at least 1 of those top games at home ... RU is the only team with both their toughest games on the road.
That said ... ONE more win by RU almost certainly locks them into at least 15th, if not better. One more win gets RU to no worse than 8-12: No way PSU and Washington go undefeated ... Northwestern would also have to sweep Iowa, UCLA and @Maryland - because an 8-12 RU has the tiebreaker over an 8-12 Northwestern (or presuming NW beats Iowa, even if RU is in 3-way tie with NW).
RU beats out USC for 15th - and likely Iowa (NW would edge out RU due to a win over Maryland) in a 4-way tie with NW, Iowa and USC. So RU might finish 14th in this scenario, behind NW, ahead of Iowa and USC.
If RU beats Minnesota, and a 5-way tie with Minnesota added ... I think RU beats out USC and Minnesota.
If RU upsets Purdue or Michigan, and beats Minnesota, finishing 9-11, they could finish as high as 10th in the league (maybe 9th, but that seems less likely).
Even in the extremely unlikely event if RU wins out with 2 upsets plus Minnesota, and finishes 10-10 ... anywhere from 8th to 11th in conference. FYI, still would have to win the Big 10 tournament for an NCAA bid (21-15, assuming winning out, no bye in the Big 10 tourney, and 4 wins to the final - not enough IMO ... though that WOULD have RU with 7-12 in Quad 1 ... and 5-1 or 6-1 Quad 2 ... 12-13 or 13-13 Quad 1 and 2 ... Just those awful losses.