PFSN's College Defense Impact (DEFi) assigns a numerical score and a letter grade to a team's defensive performance. We arrive at the grade by combining a variety of situational passing and rushing EPA and success rate metrics, weighted for volume. The last part is key given the wide variance in college offensive systems. A defense that holds an opponent to a 30% rushing success rate on 50 carries will get far more credit than one that does so while facing 10 carries.
Each team's game and season grades are also adjusted for opponent strength. Past seasons use end-of-season SOS, but this means that in-season grades can and will fluctuate as we learn more about the true performance level of each team.
Team↕ | Season↕ | Conference↕ | Record↕ | Defense
Impact↓ | Grade↕ | Season
Rank↕ | Overall
Rank↕ | Games↕ | Plays↕ | Yards
per Play↕ | Points
Against↕ | Points
per Game↕ | Points
per Drive↕ | First
Downs↕ | Passing
Yards↕ | Passing
TDs↕ | Interceptions↕ | Pass Yards
per Game↕ | Rush
Yards↕ | Rush
TDs↕ | 3rd Down
Avoid %↕ | 3rd/4th Down
Conversion↕ | Red Zone
TD %↕ | Turnover
%↕ | Turnovers↕ | Sack
%↕ | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| - | - | - | - | - | 75.6 | - | - | - | 12.1 | 805.6 | 5.51 | 304.6 | 25.14 | 2.06 | 238.1 | 2631.8 | 17.4 | 9.6 | 216.9 | 1813.0 | 18.2 | 21.4% | 40.4% | 59.6% | 10.6% | 15.8 | 6.7% |
| 2025 | Big Ten | 13-0 | 97.2(1) | A+ | 1 | 1 | 13 | 731(123) | 4.6(11) | 141(2) | 10.846153846153847(2) | 0.90(3) | 165(1) | 2334(29) | 7(2) | 17(7) | 179.5(19) | 1009(4) | 5(2) | 24.2%(4) | 31.4%(9) | 27.3%(1) | 17.0%(4) | 25(6) | 10.2%(8) | ||
| 2025 | Big Ten | 12-1 | 96.6(2) | A | 2 | 2 | 13 | 704(133) | 3.9(1) | 106(1) | 8.153846153846153(1) | 0.83(2) | 166(2) | 1678(1) | 6(1) | 8(76) | 129.1(1) | 1098(8) | 4(1) | 24.0%(5) | 30.2%(2) | 33.3%(2) | 10.2%(74) | 14(81) | 10.4%(5) | ||
| 2025 | SEC | 10-2 | 96.4(3) | A | 3 | 3 | 12 | 774(102) | 4.2(6) | 167(7) | 13.916666666666666(7) | 1.07(6) | 182(6) | 2306(27) | 9(5) | 9(65) | 192.2(31) | 977(2) | 6(5) | 23.6%(7) | 30.5%(4) | 39.3%(5) | 8.2%(103) | 13(94) | 10.8%(2) | ||
| 2025 | Big 12 | 12-1 | 95.6(4) | A | 4 | 4 | 13 | 836(36) | 4.0(3) | 142(3) | 10.923076923076923(3) | 0.81(1) | 180(4) | 2417(38) | 11(10) | 16(10) | 185.9(26) | 890(1) | 6(5) | 24.4%(2) | 30.4%(3) | 59.1%(61) | 18.0%(2) | 31(1) | 8.7%(19) | ||
| 2025 | MAC | 8-4 | 90.4(5) | A- | 5 | 10 | 12 | 758(114) | 3.9(1) | 146(4) | 12.166666666666666(4) | 0.94(5) | 168(3) | 1901(7) | 9(5) | 13(21) | 158.4(8) | 1072(7) | 9(11) | 23.6%(7) | 31.2%(6) | 52.0%(22) | 12.3%(42) | 20(24) | 10.6%(4) | ||
| 2025 | ACC | 10-2 | 89.6(6) | B+ | 6 | 12 | 12 | 738(121) | 4.5(8) | 166(6) | 13.833333333333334(6) | 1.22(7) | 192(11) | 2291(26) | 11(10) | 12(33) | 190.9(30) | 1042(6) | 8(8) | 22.4%(25) | 32.6%(12) | 60.0%(68) | 14.7%(16) | 20(24) | 8.9%(17) | ||
| 2025 | Sun Belt | 12-1 | 89.3(7) | B+ | 7 | 13 | 13 | 794(79) | 4.1(4) | 206(10) | 15.846153846153847(10) | 1.23(8) | 182(6) | 2229(22) | 14(29) | 12(33) | 171.5(12) | 990(3) | 7(7) | 24.5%(1) | 30.5%(4) | 51.6%(19) | 8.9%(96) | 15(67) | 9.1%(15) | ||
| 2025 | MWC | 9-3 | 89.0(8) | B+ | 8 | 17 | 12 | 779(97) | 4.1(4) | 151(5) | 12.583333333333334(5) | 0.92(4) | 181(5) | 1884(5) | 11(10) | 13(21) | 157.0(5) | 1316(21) | 5(2) | 24.4%(2) | 33.0%(13) | 41.7%(8) | 11.0%(60) | 16(57) | 8.7%(19) | ||
| 2025 | SEC | 11-1 | 88.0(9) | B+ | 9 | 22 | 12 | 737(122) | 5.0(29) | 263(40) | 21.916666666666668(41) | 1.63(29) | 193(12) | 2193(17) | 16(54) | 3(130) | 182.8(21) | 1525(34) | 13(31) | 21.9%(49) | 24.1%(1) | 59.4%(65) | 5.3%(130) | 9(120) | 11.4%(1) | ||
| 2025 | IND (FBS) | 10-2 | 87.5(10) | B+ | 10 | 26 | 12 | 815(55) | 4.6(11) | 211(12) | 17.583333333333332(13) | 1.51(16) | 222(35) | 2561(50) | 14(29) | 21(1) | 213.4(56) | 1191(11) | 8(8) | 22.7%(18) | 36.7%(34) | 56.0%(42) | 16.9%(5) | 23(12) | 8.5%(27) | ||
| 2025 | SEC | 10-3 | 87.3(11) | B+ | 11 | 28 | 13 | 765(110) | 4.8(17) | 226(16) | 17.384615384615383(12) | 1.47(15) | 198(14) | 2050(9) | 11(10) | 10(57) | 157.7(6) | 1633(47) | 14(38) | 23.0%(12) | 38.3%(45) | 50.0%(14) | 12.5%(35) | 19(36) | 7.4%(40) | ||
| 2025 | SEC | 8-4 | 87.1(12) | B+ | 12 | 29 | 12 | 716(130) | 4.6(11) | 233(19) | 19.416666666666668(22) | 1.58(21) | 187(10) | 2057(10) | 15(37) | 7(91) | 171.4(11) | 1240(16) | 11(17) | 23.0%(12) | 33.9%(18) | 55.9%(41) | 7.9%(107) | 11(109) | 10.3%(7) | ||
| 2025 | Big 12 | 11-2 | 87.0(13) | B+ | 13 | 30 | 13 | 844(32) | 5.1(35) | 247(30) | 19(20) | 1.61(26) | 230(49) | 2682(73) | 15(37) | 16(10) | 206.3(49) | 1587(37) | 12(21) | 22.2%(32) | 35.0%(25) | 39.6%(6) | 13.1%(30) | 22(14) | 7.3%(43) | ||
| 2025 | Big Ten | 8-4 | 86.8(14) | B | 14 | 33 | 12 | 718(129) | 4.5(8) | 182(9) | 15.166666666666666(9) | 1.32(9) | 183(9) | 1898(6) | 7(2) | 11(46) | 158.2(7) | 1349(23) | 11(17) | 22.5%(22) | 33.1%(15) | 51.6%(19) | 9.9%(81) | 14(81) | 6.3%(77) | ||
| 2025 | SEC | 7-5 | 86.7(15) | B | 15 | 34 | 12 | 765(110) | 5.0(29) | 220(13) | 18.333333333333332(15) | 1.43(12) | 211(23) | 2430(40) | 10(8) | 17(7) | 202.5(43) | 1406(26) | 14(38) | 22.1%(42) | 35.5%(28) | 58.6%(58) | 15.1%(10) | 21(18) | 7.2%(46) | ||
| 2025 | ACC | 8-4 | 86.3(16) | B | 16 | 38 | 12 | 772(105) | 4.7(15) | 253(34) | 21.083333333333332(35) | 1.51(16) | 200(15) | 2287(24) | 14(29) | 14(15) | 190.6(28) | 1317(22) | 12(21) | 22.9%(14) | 33.5%(16) | 58.1%(51) | 12.2%(45) | 19(36) | 7.1%(51) | ||
| 2025 | SEC | 9-3 | 86.0(17) | B | 17 | 47 | 12 | 815(55) | 4.9(22) | 237(20) | 19.75(23) | 1.60(24) | 230(49) | 2851(100) | 16(54) | 13(21) | 237.6(101) | 1177(10) | 12(21) | 22.4%(25) | 34.3%(21) | 62.5%(87) | 13.6%(21) | 20(24) | 9.0%(16) | ||
| 2025 | Big Ten | 11-1 | 85.6(18) | B | 18 | 55 | 12 | 726(128) | 4.2(6) | 178(8) | 14.833333333333334(8) | 1.36(10) | 182(6) | 1732(3) | 12(18) | 13(21) | 144.3(3) | 1287(19) | 9(11) | 24.0%(5) | 38.8%(49) | 75.0%(129) | 12.2%(45) | 17(48) | 7.1%(51) | ||
| 2025 | Big 12 | 10-2 | 85.5(19) | B | 19 | 56 | 12 | 807(64) | 5.4(51) | 224(14) | 18.666666666666668(16) | 1.58(21) | 225(42) | 2130(15) | 11(10) | 14(15) | 177.5(17) | 2194(110) | 16(49) | 22.3%(30) | 37.2%(36) | 51.7%(21) | 12.0%(48) | 17(48) | 8.7%(19) | ||
| 2025 | ACC | 8-4 | 85.3(20) | B | 20 | 58 | 12 | 853(28) | 4.5(8) | 258(37) | 21.5(38) | 1.63(29) | 223(38) | 2396(37) | 11(10) | 4(123) | 199.7(41) | 1467(31) | 17(61) | 23.3%(10) | 37.7%(39) | 50.0%(14) | 9.1%(94) | 15(67) | 5.8%(98) | ||
| 2025 | SEC | 12-1 | 85.3(21) | B | 21 | 61 | 13 | 775(100) | 4.8(17) | 207(11) | 15.923076923076923(11) | 1.45(13) | 204(18) | 2669(68) | 12(18) | 9(65) | 205.3(48) | 1030(5) | 12(21) | 22.7%(18) | 35.9%(31) | 54.8%(36) | 8.4%(100) | 12(104) | 4.8%(115) | ||
| 2025 | Big 12 | 9-3 | 84.6(22) | B | 22 | 69 | 12 | 794(79) | 4.6(11) | 227(17) | 18.916666666666668(19) | 1.52(18) | 196(13) | 1871(4) | 9(5) | 19(4) | 155.9(4) | 1748(60) | 16(49) | 23.1%(11) | 37.7%(39) | 56.3%(43) | 18.6%(1) | 28(2) | 5.9%(96) | ||
| 2025 | SEC | 4-8 | 84.4(23) | B | 23 | 77 | 12 | 806(66) | 5.2(37) | 265(43) | 22.083333333333332(45) | 1.68(31) | 236(61) | 2596(56) | 13(22) | 12(33) | 216.3(60) | 1632(46) | 13(31) | 21.4%(68) | 40.9%(65) | 46.5%(10) | 14.1%(19) | 22(14) | 5.9%(96) | ||
| 2025 | Big Ten | 8-4 | 83.9(24) | B | 24 | 83 | 13 | 846(31) | 4.8(17) | 243(26) | 18.692307692307693(18) | 1.75(38) | 231(52) | 2747(88) | 17(64) | 14(15) | 211.3(54) | 1301(20) | 9(11) | 22.0%(47) | 40.2%(59) | 48.8%(13) | 12.9%(31) | 19(36) | 5.4%(105) | ||
| 2025 | Big Ten | 9-3 | 83.7(25) | B | 25 | 92 | 12 | 787(89) | 4.8(17) | 224(14) | 18.666666666666668(16) | 1.70(35) | 216(30) | 2527(47) | 15(37) | 13(21) | 210.6(52) | 1220(13) | 11(17) | 22.1%(42) | 41.2%(67) | 51.4%(17) | 12.9%(31) | 18(43) | 7.1%(51) | ||
| 2025 | SEC | 5-7 | 83.6(26) | B | 26 | 93 | 12 | 798(71) | 4.9(22) | 248(31) | 20.666666666666668(32) | 1.76(40) | 230(49) | 2758(90) | 15(37) | 11(46) | 229.8(91) | 1192(12) | 12(21) | 22.2%(32) | 38.9%(50) | 61.5%(80) | 12.5%(35) | 17(48) | 7.9%(32) | ||
| 2025 | ACC | 10-3 | 83.6(27) | B | 27 | 95 | 13 | 822(50) | 5.0(29) | 267(45) | 20.53846153846154(31) | 1.57(19) | 207(20) | 2637(61) | 15(37) | 13(21) | 202.8(44) | 1436(28) | 16(49) | 22.9%(14) | 33.6%(17) | 66.7%(107) | 12.5%(35) | 20(24) | 8.0%(31) | ||
| 2025 | Sun Belt | 9-3 | 83.4(28) | B | 28 | 101 | 12 | 829(41) | 4.8(17) | 231(18) | 19.25(21) | 1.38(11) | 211(23) | 2208(19) | 15(37) | 11(46) | 184.0(23) | 1769(63) | 13(31) | 22.5%(22) | 32.4%(11) | 56.8%(46) | 12.1%(47) | 20(24) | 9.5%(11) | ||
| 2025 | ACC | 8-4 | 83.4(29) | B | 29 | 102 | 12 | 899(3) | 5.2(37) | 248(31) | 20.666666666666668(32) | 1.60(24) | 257(100) | 3416(134) | 23(112) | 17(7) | 284.7(135) | 1271(18) | 5(2) | 22.2%(32) | 38.1%(42) | 38.6%(4) | 15.6%(9) | 27(3) | 7.1%(51) | ||
| 2025 | American | 8-4 | 83.2(30) | B | 30 | 107 | 12 | 808(63) | 5.2(37) | 244(27) | 20.333333333333332(28) | 1.59(23) | 226(43) | 2744(87) | 15(37) | 9(65) | 228.7(89) | 1443(29) | 11(17) | 22.2%(32) | 32.2%(10) | 40.5%(7) | 12.4%(38) | 19(36) | 7.2%(46) | ||
| 2025 | ACC | 7-5 | 82.9(31) | B- | 31 | 118 | 12 | 795(78) | 5.3(43) | 245(28) | 20.416666666666668(29) | 1.62(27) | 227(45) | 3006(117) | 16(54) | 9(65) | 250.5(119) | 1234(14) | 10(16) | 21.2%(80) | 31.2%(6) | 60.0%(68) | 11.9%(51) | 17(48) | 7.3%(43) | ||
| 2025 | ACC | 8-4 | 82.8(32) | B- | 32 | 119 | 12 | 826(47) | 4.9(22) | 299(67) | 24.916666666666668(70) | 1.81(44) | 219(33) | 2882(103) | 26(131) | 15(12) | 240.2(104) | 1164(9) | 12(21) | 21.2%(80) | 34.2%(20) | 69.4%(115) | 12.4%(38) | 20(24) | 6.8%(62) | ||
| 2025 | Big Ten | 4-8 | 82.4(33) | B- | 33 | 123 | 12 | 716(130) | 5.4(51) | 259(38) | 21.583333333333332(39) | 1.96(55) | 204(18) | 2619(59) | 19(85) | 5(116) | 218.3(63) | 1263(17) | 12(21) | 21.4%(68) | 38.2%(43) | 53.8%(30) | 4.5%(134) | 6(133) | 9.3%(14) | ||
| 2025 | SEC | 11-1 | 82.2(34) | B- | 34 | 129 | 12 | 768(106) | 5.2(37) | 241(22) | 20.083333333333332(24) | 1.71(36) | 216(30) | 2191(16) | 13(22) | 7(91) | 182.6(20) | 1806(67) | 16(49) | 21.8%(52) | 35.8%(30) | 56.3%(43) | 5.7%(126) | 10(113) | 7.1%(51) | ||
| 2025 | Big 12 | 9-3 | 81.8(35) | B- | 35 | 143 | 12 | 805(67) | 5.2(37) | 262(39) | 21.833333333333332(40) | 1.69(33) | 218(32) | 2578(54) | 13(22) | 12(33) | 214.8(59) | 1600(41) | 16(49) | 22.2%(32) | 36.2%(32) | 44.7%(9) | 11.6%(53) | 17(48) | 6.4%(73) | ||
| 2025 | Big 12 | 8-4 | 81.2(36) | B- | 36 | 156 | 12 | 819(51) | 5.0(29) | 276(51) | 23(53) | 1.89(48) | 229(48) | 2708(76) | 16(54) | 7(91) | 225.7(77) | 1400(25) | 18(71) | 22.2%(32) | 38.2%(43) | 52.2%(23) | 10.3%(73) | 14(81) | 7.8%(35) | ||
| 2025 | MAC | 9-4 | 80.5(37) | B- | 37 | 176 | 13 | 789(85) | 4.9(22) | 237(20) | 18.23076923076923(14) | 1.57(19) | 215(29) | 2310(28) | 13(22) | 10(57) | 177.7(18) | 1589(38) | 16(49) | 21.7%(57) | 33.0%(13) | 56.8%(46) | 13.3%(26) | 20(24) | 10.7%(3) | ||
| 2025 | Big Ten | 6-6 | 79.9(38) | C+ | 38 | 199 | 12 | 757(116) | 5.3(43) | 257(36) | 21.416666666666668(37) | 2.01(62) | 213(27) | 2202(18) | 16(54) | 6(104) | 183.5(22) | 1810(70) | 15(47) | 22.1%(42) | 42.4%(84) | 59.1%(61) | 9.4%(87) | 13(94) | 8.6%(24) | ||
| 2025 | Pac-12 | 6-6 | 79.8(39) | C+ | 39 | 200 | 12 | 727(127) | 5.0(29) | 242(24) | 20.166666666666668(26) | 1.69(33) | 203(17) | 2073(11) | 14(29) | 5(116) | 172.8(13) | 1567(36) | 14(38) | 21.7%(57) | 35.6%(29) | 63.3%(91) | 7.5%(111) | 10(113) | 8.6%(24) | ||
| 2025 | ACC | 5-7 | 79.7(40) | C+ | 40 | 207 | 12 | 788(86) | 5.0(29) | 264(42) | 22(43) | 1.93(52) | 223(38) | 2289(25) | 20(92) | 12(33) | 190.8(29) | 1657(50) | 12(21) | 22.8%(17) | 42.2%(80) | 65.7%(105) | 10.2%(74) | 14(81) | 9.5%(11) | ||
| 2025 | Big 12 | 8-4 | 79.4(41) | C+ | 41 | 214 | 12 | 761(112) | 5.6(66) | 242(24) | 20.166666666666668(26) | 1.77(42) | 211(23) | 2622(60) | 14(29) | 11(46) | 218.5(64) | 1656(49) | 14(38) | 22.0%(47) | 39.7%(54) | 55.6%(38) | 12.8%(33) | 18(43) | 3.4%(134) | ||
| 2025 | Big 12 | 8-4 | 78.7(42) | C+ | 42 | 234 | 12 | 828(42) | 5.5(58) | 302(69) | 25.166666666666668(73) | 1.93(52) | 244(75) | 2913(107) | 24(122) | 12(33) | 242.8(109) | 1612(44) | 9(11) | 21.4%(68) | 41.5%(72) | 59.0%(60) | 12.4%(38) | 19(36) | 6.1%(88) | ||
| 2025 | Big 12 | 5-7 | 78.7(43) | C+ | 43 | 241 | 12 | 796(76) | 5.1(35) | 283(59) | 23.583333333333332(61) | 1.92(50) | 223(38) | 2221(21) | 13(22) | 9(65) | 185.1(25) | 1808(68) | 18(71) | 22.2%(32) | 39.4%(51) | 65.0%(101) | 9.3%(90) | 14(81) | 8.1%(30) | ||
| 2025 | MAC | 5-7 | 78.5(44) | C+ | 44 | 246 | 12 | 843(33) | 4.9(22) | 282(57) | 23.5(59) | 1.68(31) | 222(35) | 2237(23) | 17(64) | 7(91) | 186.4(27) | 1886(77) | 16(49) | 23.5%(9) | 37.4%(37) | 57.1%(49) | 9.4%(87) | 15(67) | 10.4%(5) | ||
| 2025 | MWC | 4-8 | 78.5(45) | C+ | 45 | 252 | 12 | 784(93) | 5.3(43) | 246(29) | 20.5(30) | 1.62(27) | 220(34) | 2106(13) | 15(37) | 10(57) | 175.5(15) | 2025(91) | 13(31) | 22.2%(32) | 37.4%(37) | 53.1%(27) | 10.6%(67) | 15(67) | 5.2%(108) | ||
| 2025 | C-USA | 8-4 | 78.2(46) | C+ | 46 | 268 | 12 | 851(30) | 5.7(77) | 281(55) | 23.416666666666668(57) | 1.71(36) | 245(77) | 2657(65) | 11(10) | 8(76) | 221.4(68) | 2176(107) | 14(38) | 22.7%(18) | 34.9%(24) | 36.2%(3) | 7.4%(113) | 13(94) | 3.8%(129) | ||
| 2025 | SEC | 10-2 | 78.1(47) | C+ | 47 | 274 | 12 | 781(96) | 5.5(58) | 263(40) | 21.916666666666668(41) | 2.07(72) | 239(64) | 3030(120) | 22(105) | 7(91) | 252.5(122) | 1239(15) | 8(8) | 22.2%(32) | 44.2%(103) | 53.8%(30) | 11.0%(60) | 14(81) | 6.7%(65) | ||
| 2025 | MWC | 9-4 | 78.1(48) | C+ | 48 | 275 | 14 | 871(17) | 5.4(51) | 337(87) | 24.071428571428573(63) | 1.86(47) | 233(56) | 2458(43) | 17(64) | 14(15) | 175.6(16) | 2259(114) | 25(110) | 21.7%(57) | 34.3%(21) | 75.0%(129) | 12.4%(38) | 23(12) | 7.0%(57) | ||
| 2025 | SEC | 4-8 | 77.8(49) | C+ | 49 | 289 | 12 | 798(71) | 5.7(77) | 288(61) | 24(62) | 1.99(59) | 234(57) | 2675(71) | 13(22) | 10(57) | 222.9(73) | 1847(74) | 21(84) | 21.8%(52) | 46.3%(119) | 54.5%(35) | 11.4%(56) | 17(48) | 7.8%(35) | ||
| 2025 | Big 12 | 6-6 | 77.5(50) | C+ | 50 | 303 | 12 | 873(15) | 5.3(43) | 320(78) | 26.666666666666668(81) | 2.08(74) | 249(81) | 2669(68) | 14(29) | 13(21) | 222.4(71) | 1965(87) | 23(96) | 21.4%(68) | 40.9%(65) | 60.0%(68) | 17.1%(3) | 26(4) | 7.2%(46) |
Showing 1 to 50 of 136 results
Last updated: 12/24/2025, 7:24 AM