Brent Yarina, BTN.com Senior Editor, October 18, 2015

Four Big Ten teams are ranked in the latest AP and Coaches polls, released Sunday, headlined by No. 1 Ohio State.

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The Buckeyes, No. 1 for the ninth straight week, including the preseason poll, are receiving 73 of a total 124 first-place votes following its convincing 38-10 victory vs. Penn State.

Big Ten East rival Michigan State, fresh off its improbable last-second win at ranked Michigan, remains No. 7 in the AP and No. 4 in the Coaches.

Undefeated Iowa (No. 12/No. 13) moved up five and four spots, respectively, after dismantling previously ranked Northwestern on the road, while Michigan (No. 15/No. 18) drops three spots in both polls as a result of its heartbreaking loss to instate rival Michigan State.

Northwestern fell out of both rankings.

View the full AP Poll:

AP Rankings
Rankings as of 10/18/2015
Rank School Votes Prev
1 Ohio State (7-0) 1428 (28) 1
2 Baylor (6-0) 1416 (12) 2
3 Utah (6-0) 1362 (16) 4
4 TCU (7-0) 1338 (3) 3
5 LSU (6-0) 1306 (1) 6
6 Clemson (6-0) 1252 (1) 5
7 Michigan State (7-0) 1202 7
8 Alabama (6-1) 1133 10
9 Florida State (6-0) 1041 11
10 Stanford (5-1) 917 15
11 Notre Dame (6-1) 898 14
12 Iowa (7-0) 820 17
13 Florida (6-1) 785 8
14 Oklahoma State (6-0) 735 16
15 Michigan (5-2) 614 12
15 Texas A&M (5-1) 614 9
17 Oklahoma (5-1) 565 19
18 Memphis (6-0) 553 NR
19 Toledo (6-0) 345 22
20 California (5-1) 336 23
21 Houston (6-0) 317 24
22 Temple (6-0) 216 NR
23 Duke (5-1) 210 25
24 Ole Miss (5-2) 157 13
25 Pittsburgh (5-1) 73 NR
Others: Mississippi State (62) , BYU (21) , UCLA (18) , North Carolina (17) , Texas Tech (14) , Georgia (12) , Western Kentucky (11) , Arizona State (10) , Wisconsin (8) , Boise State (8) , Utah State (7) , Northwestern (4)
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And the Coaches Poll:

Coaches' Rankings
Rankings as of 10/18/2015
Rank School Votes Prev
1 Ohio State (7-0) 1547 (45) 1
2 Baylor (6-0) 1488 (12) 2
3 TCU (7-0) 1417 (4) 3
4 Michigan State (7-0) 1334 4
5 LSU (6-0) 1324 (1) 5
6 Clemson (6-0) 1271 6
7 Utah (6-0) 1258 (1) 7
8 Alabama (6-1) 1123 9
9 Florida State (6-0) 1111 8
10 Notre Dame (6-1) 924 13
11 Stanford (5-1) 898 16
12 Oklahoma State (6-0) 839 15
13 Iowa (7-0) 833 17
14 Florida (6-1) 751 11
15 Oklahoma (5-1) 665 19
16 Texas A&M (5-1) 623 10
17 Michigan (5-2) 544 14
17 Memphis (6-0) 544 22
19 California (5-1) 370 23
20 Toledo (6-0) 322 25
21 Duke (5-1) 305 24
22 Houston (6-0) 289 NR
23 Ole Miss (5-2) 201 12
24 Temple (6-0) 163 NR
25 Georgia (5-2) 95 NR
Others: Mississippi State (38) , Wisconsin (37) , Pittsburgh (32) , North Carolina (30) , UCLA (30) , Texas Tech (14) , BYU (9) , Navy (9) , Illinois (5) , Utah State (5) , Oregon (5) , Washington State (5) , Western Kentucky (5) , Northwestern (4) , Marshall (3) , Arizona (2) , Boise State (2) , Bowling Green (1)