Quarterbacks are ranked according to DYAR, or Defense-adjusted Yards Above Replacement. This gives the value of the quarterback's performance compared to replacement level, adjusted for situation and opponent and then translated into yardage. DYAR (and its cousin, YAR, which isn't adjusted based on opponent) is further explained here [1].
The other statistic given is DVOA, or Defense-adjusted Value Over Average. This number represents value, per play, over an average quarterback in the same game situations. The more positive the DVOA rating, the better the player's performance. Negative DVOA represents below-average offense. DVOA (and its cousin, VOA, which isn't adjusted based on opponent) is further explained here [2].
The simple version: DYAR means a quarterback with more total value. DVOA means a quarterback with more value per play.
Effective Yards, listed in red, translate DVOA into a yards per attempt figure. This provides an easy comparison: in general, players with more Effective Yards than standard yards played better than standard stats would otherwise indicate, while players with fewer Effective Yards than standard yards played worse than standard stats would otherwise indicate. Effective Yards are not the best way to measure total value because they are more dependent on usage than DYAR.
| Player | Team | DYAR | Rk | YAR | Rk | DVOA | Rk | VOA | Passes | Yards | EYds | TD | FK | FL | INT | C% |
| P.Manning [3] | IND | 2,308 | 1 | 2,287 | 1 | 51.0% | 1 | 50.5% | 571 | 4,381 | 6,131 | 31 | 1 | 1 | 9 | 65.5% |
| D.Brees [4] | NO | 1,386 | 2 | 1,458 | 2 | 25.1% | 2 | 27.0% | 575 | 4,349 | 4,964 | 26 | 2 | 2 | 11 | 64.7% |
| C.Palmer [5] | CIN | 1,189 | 3 | 1,007 | 4 | 21.7% | 4 | 16.7% | 561 | 3,928 | 4,535 | 28 | 8 | 7 | 12 | 62.8% |
| M.Bulger [6] | STL | 1,142 | 4 | 1,274 | 3 | 16.6% | 11 | 19.8% | 639 | 4,110 | 4,869 | 24 | 2 | 3 | 7 | 63.9% |
| T.Brady [7] | NE | 1,009 | 5 | 953 | 5 | 17.4% | 8 | 15.8% | 549 | 3,519 | 4,223 | 24 | 8 | 3 | 12 | 62.0% |
| P.Rivers [8] | SD | 904 | 6 | 943 | 6 | 17.9% | 7 | 19.1% | 494 | 3,275 | 3,739 | 22 | 3 | 2 | 9 | 62.3% |
| C.Pennington [9] | NYJ | 740 | 7 | 595 | 11 | 10.4% | 13 | 6.1% | 519 | 3,320 | 3,777 | 17 | 2 | 4 | 15 | 65.3% |
| T.Romo [10] | DAL | 696 | 8 | 821 | 7 | 18.9% | 5 | 24.3% | 362 | 2,793 | 2,810 | 19 | 4 | 3 | 13 | 65.3% |
| D.McNabb [11] | PHI | 660 | 9 | 751 | 8 | 18.8% | 6 | 23.0% | 338 | 2,542 | 2,671 | 18 | 1 | 1 | 5 | 57.3% |
| S.McNair [12] | BAL | 627 | 10 | 660 | 9 | 9.4% | 14 | 10.5% | 482 | 2,973 | 3,309 | 16 | 5 | 1 | 12 | 64.3% |
| B.Roethlisberger [13] | PIT | 616 | 11 | 428 | 14 | 8.0% | 15 | 2.2% | 516 | 3,307 | 3,422 | 18 | 2 | 2 | 21 | 60.4% |
| D.Huard [14] | KC | 584 | 12 | 655 | 10 | 24.3% | 3 | 28.6% | 266 | 1,798 | 2,121 | 11 | 3 | 3 | 1 | 60.9% |
| E.Manning [15] | NYG | 519 | 13 | 475 | 13 | 3.9% | 16 | 2.6% | 548 | 3,125 | 3,500 | 24 | 6 | 1 | 17 | 58.2% |
| B.Favre [16] | GB | 408 | 14 | 479 | 12 | -1.2% | 19 | 0.6% | 637 | 3,801 | 3,842 | 18 | 1 | 4 | 18 | 56.1% |
| J.Kitna [17] | DET | 370 | 15 | 295 | 18 | -2.3% | 21 | -4.1% | 664 | 3,929 | 3,886 | 21 | 1 | 7 | 21 | 62.7% |
| M.Brunell [18] | WAS | 363 | 16 | 344 | 17 | 10.5% | 12 | 9.3% | 274 | 1,710 | 1,846 | 8 | 2 | 1 | 4 | 62.8% |
| Player | Team | DYAR | Rk | YAR | Rk | DVOA | Rk | VOA | Passes | Yards | EYds | TD | FK | FL | INT | C% |
| J.Garcia [19] | PHI | 359 | 17 | 365 | 16 | 17.4% | 9 | 17.8% | 195 | 1,273 | 1,503 | 10 | 3 | 2 | 2 | 61.7% |
| J.Delhomme [20] | CAR | 303 | 18 | 416 | 15 | -0.9% | 18 | 3.0% | 459 | 2,677 | 2,785 | 17 | 2 | 4 | 11 | 61.3% |
| M.Leinart [21] | ARI | 246 | 19 | 215 | 19 | -1.2% | 20 | -2.5% | 401 | 2,474 | 2,322 | 11 | 6 | 2 | 11 | 57.8% |
| T.Rattay [22] | TB | 201 | 20 | 160 | 21 | 17.2% | 10 | 11.5% | 107 | 728 | 844 | 4 | 1 | 1 | 2 | 60.8% |
| J.Campbell [23] | WAS | 140 | 21 | 159 | 22 | -0.7% | 17 | 0.8% | 214 | 1,242 | 1,271 | 10 | 1 | 0 | 6 | 53.4% |
| T.Green [24] | KC | 121 | 22 | -15 | 32 | -2.5% | 22 | -12.2% | 222 | 1,210 | 1,302 | 7 | 1 | 3 | 9 | 61.1% |
| D.Garrard [25] | JAC | 107 | 23 | 108 | 26 | -4.8% | 24 | -4.8% | 261 | 1,613 | 1,513 | 10 | 1 | 1 | 9 | 60.2% |
| V.Young [26] | TEN | 99 | 24 | 9 | 30 | -6.9% | 25 | -10.8% | 382 | 2,173 | 2,007 | 12 | 4 | 1 | 12 | 52.4% |
| J.Losman [27] | BUF | 85 | 25 | 12 | 29 | -8.3% | 27 | -10.7% | 481 | 2,808 | 2,565 | 19 | 4 | 6 | 13 | 62.8% |
| D.Carr [28] | HOU | 81 | 26 | -50 | 33 | -8.6% | 28 | -12.7% | 488 | 2,557 | 2,663 | 11 | 8 | 6 | 12 | 68.9% |
| K.Warner [29] | ARI | 74 | 27 | 154 | 23 | -4.7% | 23 | 2.3% | 186 | 1,277 | 1,022 | 6 | 5 | 3 | 5 | 64.7% |
| J.Plummer [30] | DEN | 66 | 28 | -2 | 31 | -8.1% | 26 | -11.2% | 338 | 1,932 | 1,844 | 11 | 3 | 2 | 13 | 55.4% |
| R.Grossman [31] | CHI | 60 | 29 | 212 | 20 | -9.3% | 29 | -4.7% | 512 | 3,221 | 2,728 | 23 | 2 | 5 | 20 | 54.7% |
| M.Hasselbeck [32] | SEA | 23 | 30 | 118 | 25 | -10.2% | 31 | -6.4% | 406 | 2,294 | 2,056 | 18 | 0 | 2 | 15 | 57.1% |
| B.Leftwich [33] | JAC | 13 | 31 | 138 | 24 | -10.1% | 30 | 0.0% | 194 | 1,113 | 1,020 | 7 | 0 | 0 | 5 | 59.0% |
| D.Bledsoe [34] | DAL | 2 | 32 | 20 | 28 | -11.0% | 32 | -9.4% | 190 | 1,176 | 925 | 7 | 1 | 1 | 8 | 53.9% |
| Player | Team | DYAR | Rk | YAR | Rk | DVOA | Rk | VOA | Passes | Yards | EYds | TD | FK | FL | INT | C% |
| J.Cutler [35] | DEN | -15 | 33 | 68 | 27 | -12.7% | 33 | -4.2% | 156 | 961 | 779 | 9 | 3 | 1 | 5 | 59.1% |
| D.Anderson [36] | CLE | -94 | 34 | -120 | 37 | -22.8% | 39 | -26.1% | 124 | 730 | 517 | 5 | 1 | 0 | 8 | 56.9% |
| J.Harrington [37] | MIA | -98 | 35 | -241 | 42 | -14.9% | 34 | -20.4% | 403 | 2,126 | 1,963 | 12 | 3 | 0 | 15 | 58.1% |
| C.Weinke [38] | CAR | -100 | 36 | -103 | 35 | -25.7% | 41 | -26.1% | 106 | 570 | 416 | 2 | 1 | 0 | 4 | 58.3% |
| D.Culpepper [39] | MIA | -109 | 37 | -77 | 34 | -23.1% | 40 | -19.6% | 154 | 785 | 584 | 2 | 3 | 0 | 3 | 60.9% |
| A.Smith [40] | SF | -126 | 38 | -119 | 36 | -15.3% | 35 | -15.1% | 476 | 2,723 | 2,249 | 16 | 5 | 2 | 16 | 58.8% |
| C.Simms [41] | TB | -154 | 39 | -215 | 41 | -32.5% | 44 | -41.0% | 110 | 571 | 372 | 1 | 0 | 0 | 7 | 55.2% |
| S.Wallace [42] | SEA | -165 | 40 | -130 | 38 | -28.3% | 42 | -24.7% | 157 | 864 | 549 | 8 | 1 | 3 | 7 | 58.2% |
| B.Johnson [43] | MIN | -202 | 41 | -186 | 40 | -17.8% | 36 | -17.3% | 468 | 2,558 | 2,154 | 9 | 5 | 3 | 15 | 62.5% |
| C.Frye [44] | CLE | -216 | 42 | -245 | 43 | -18.7% | 37 | -19.7% | 444 | 2,248 | 2,006 | 10 | 1 | 5 | 15 | 64.7% |
| M.Vick [45] | ATL | -253 | 43 | -144 | 39 | -20.1% | 38 | -16.3% | 437 | 2,247 | 1,919 | 20 | 4 | 1 | 11 | 52.7% |
| A.Brooks [46] | OAK | -373 | 44 | -272 | 44 | -38.4% | 45 | -31.0% | 221 | 956 | 601 | 3 | 1 | 3 | 7 | 57.9% |
| B.Gradkowski [47] | TB | -451 | 45 | -443 | 45 | -31.5% | 43 | -31.1% | 353 | 1,512 | 1,171 | 9 | 3 | 4 | 9 | 54.5% |
| A.Walter [48] | OAK | -658 | 46 | -619 | 46 | -45.6% | 46 | -43.6% | 329 | 1,416 | 644 | 3 | 3 | 7 | 11 | 53.5% |
| Player | Team | DYAR | YAR | DVOA | VOA | Passes | Yards | EYds | TD | FK | FL | INT | C% |
| C.Batch [49] | PIT | 278 | 262 | 64.6% | 60.3% | 57 | 502 | 673 | 5 | 0 | 0 | 0 | 58.5% |
| S.Rosenfels [50] | HOU | 158 | 156 | 47.3% | 46.6% | 40 | 268 | 431 | 3 | 0 | 0 | 1 | 69.2% |
| A.Feeley [51] | PHI | 153 | 152 | 50.7% | 50.5% | 40 | 336 | 407 | 3 | 0 | 1 | 0 | 70.3% |
| K.Boller [52] | BAL | 118 | 95 | 19.9% | 14.0% | 60 | 457 | 467 | 5 | 1 | 1 | 2 | 60.0% |
| M.Schaub [53] | ATL | 95 | 74 | 47.2% | 34.2% | 29 | 200 | 263 | 1 | 0 | 0 | 1 | 66.7% |
| C.Lemon [54] | MIA | 73 | 69 | 4.9% | 4.0% | 70 | 388 | 467 | 2 | 0 | 0 | 1 | 58.5% |
| Q.Gray [55] | JAC | 50 | 60 | 26.5% | 34.1% | 24 | 162 | 174 | 0 | 0 | 0 | 0 | 59.1% |
| B.Bollinger [56] | MIN | 27 | 3 | 7.7% | -8.9% | 24 | 104 | 155 | 0 | 0 | 0 | 0 | 72.2% |
| B.Basanez [57] | CAR | 24 | 28 | 24.0% | 28.8% | 11 | 56 | 90 | 0 | 0 | 0 | 0 | 54.5% |
| M.Cassel [58] | NE | -52 | -49 | -90.4% | -85.0% | 11 | 15 | -18 | 0 | 0 | 1 | 0 | 62.5% |
| A.Rodgers [59] | GB | -54 | -68 | -59.4% | -71.9% | 19 | 50 | 17 | 0 | 0 | 1 | 0 | 40.0% |
| M.Tuiasosopo [60] | OAK | -82 | -71 | -100.7% | -88.2% | 13 | 68 | -38 | 1 | 0 | 0 | 2 | 46.2% |
| J.Martin [61] | NO | -83 | -101 | -57.3% | -67.7% | 29 | 185 | 32 | 1 | 2 | 1 | 1 | 66.7% |
| B.Griese [62] | CHI | -84 | -87 | -52.3% | -54.0% | 35 | 198 | 50 | 1 | 0 | 0 | 2 | 56.3% |
| K.Collins [63] | TEN | -205 | -201 | -45.8% | -45.2% | 94 | 514 | 197 | 1 | 0 | 0 | 6 | 47.2% |
| T.Jackson [64] | MIN | -238 | -236 | -52.7% | -52.3% | 89 | 469 | 137 | 2 | 2 | 1 | 4 | 58.8% |
| Player | Team | DYAR | Rk | YAR | Rk | DVOA | Rk | VOA | Runs | Yards | EYds | TD | FUM |
| M.Vick [45] | ATL | 275 | 1 | 268 | 1 | 36.4% | 4 | 35.2% | 119 | 1,038 | 1,054 | 2 | 4 |
| D.McNabb [11] | PHI | 95 | 2 | 85 | 2 | 58.9% | 1 | 51.9% | 24 | 217 | 318 | 3 | 1 |
| V.Young [26] | TEN | 58 | 3 | 75 | 3 | 3.1% | 14 | 7.6% | 75 | 551 | 413 | 7 | 4 |
| D.Garrard [25] | JAC | 56 | 4 | 64 | 4 | 17.0% | 8 | 21.0% | 37 | 260 | 293 | 0 | 1 |
| S.McNair [12] | BAL | 55 | 5 | 58 | 5 | 34.4% | 5 | 37.1% | 21 | 135 | 214 | 1 | 1 |
| C.Frye [44] | CLE | 42 | 6 | 47 | 6 | 6.7% | 9 | 9.0% | 40 | 215 | 259 | 3 | 2 |
| P.Manning [3] | IND | 42 | 7 | 41 | 7 | 48.2% | 2 | 48.1% | 10 | 54 | 147 | 4 | 0 |
| M.Hasselbeck [32] | SEA | 33 | 8 | 28 | 8 | 38.6% | 3 | 31.6% | 14 | 112 | 123 | 0 | 1 |
| J.Campbell [23] | WAS | 29 | 9 | 26 | 9 | 23.0% | 7 | 19.2% | 17 | 114 | 130 | 0 | 0 |
| T.Brady [7] | NE | 25 | 10 | 22 | 12 | 4.4% | 13 | 2.8% | 26 | 121 | 167 | 0 | 1 |
| C.Pennington [9] | NYJ | 23 | 11 | 22 | 13 | 4.6% | 12 | 4.0% | 24 | 119 | 152 | 0 | 0 |
| S.Wallace [42] | SEA | 21 | 12 | 23 | 11 | 30.3% | 6 | 35.0% | 10 | 123 | 84 | 0 | 1 |
| D.Carr [28] | HOU | 20 | 13 | 24 | 10 | -3.0% | 17 | -1.3% | 40 | 212 | 209 | 2 | 2 |
| Player | Team | DYAR | Rk | YAR | Rk | DVOA | Rk | VOA | Runs | Yards | EYds | TD | FUM |
| J.Garcia [19] | PHI | 17 | 14 | 14 | 14 | 6.2% | 10 | 3.1% | 15 | 87 | 108 | 0 | 1 |
| B.Roethlisberger [13] | PIT | 15 | 15 | 7 | 19 | -1.9% | 16 | -7.0% | 23 | 105 | 138 | 2 | 1 |
| T.Romo [10] | DAL | 14 | 16 | 12 | 17 | 0.1% | 15 | -1.4% | 21 | 109 | 117 | 0 | 1 |
| M.Leinart [21] | ARI | 13 | 17 | 13 | 15 | 4.7% | 11 | 4.8% | 14 | 63 | 89 | 2 | 0 |
| B.Gradkowski [47] | TB | 11 | 18 | 7 | 20 | -6.1% | 21 | -8.4% | 35 | 167 | 156 | 0 | 2 |
| J.Plummer [30] | DEN | 9 | 19 | 13 | 16 | -4.4% | 19 | -1.8% | 20 | 123 | 110 | 1 | 2 |
| B.Johnson [43] | MIN | 9 | 20 | 4 | 23 | -4.6% | 20 | -8.7% | 21 | 83 | 108 | 1 | 1 |
| T.Jackson [64] | MIN | 6 | 21 | 12 | 18 | -3.7% | 18 | 3.5% | 15 | 77 | 69 | 1 | 0 |
| J.Kitna [17] | DET | 4 | 22 | 0 | 26 | -9.2% | 23 | -12.3% | 28 | 153 | 93 | 2 | 3 |
| A.Smith [40] | SF | 3 | 23 | -3 | 27 | -10.5% | 25 | -13.6% | 32 | 161 | 135 | 2 | 3 |
| C.Palmer [5] | CIN | 2 | 24 | 2 | 24 | -9.3% | 24 | -10.1% | 14 | 47 | 69 | 0 | 0 |
| T.Green [24] | KC | 2 | 25 | 2 | 25 | -8.2% | 22 | -9.4% | 11 | 57 | 48 | 0 | 1 |
| B.Leftwich [33] | JAC | 0 | 26 | 5 | 22 | -12.3% | 26 | -7.0% | 16 | 49 | 66 | 2 | 1 |
| Player | Team | DYAR | Rk | YAR | Rk | DVOA | Rk | VOA | Runs | Yards | EYds | TD | FUM |
| A.Brooks [46] | OAK | -1 | 27 | 6 | 21 | -13.1% | 27 | -6.3% | 18 | 125 | 68 | 0 | 1 |
| K.Boller [52] | BAL | -16 | 28 | -23 | 31 | -40.4% | 31 | -52.9% | 11 | 43 | 4 | 0 | 1 |
| E.Manning [15] | NYG | -17 | 29 | -19 | 28 | -38.8% | 30 | -41.6% | 11 | 33 | 7 | 0 | 2 |
| J.Harrington [37] | MIA | -19 | 30 | -24 | 32 | -33.6% | 29 | -39.6% | 12 | 28 | 20 | 0 | 1 |
| M.Brunell [18] | WAS | -19 | 31 | -21 | 30 | -52.0% | 33 | -55.5% | 9 | 31 | -10 | 0 | 2 |
| B.Favre [16] | GB | -24 | 32 | -25 | 33 | -55.4% | 34 | -58.0% | 10 | 30 | -16 | 1 | 2 |
| J.Losman [27] | BUF | -24 | 33 | -21 | 29 | -25.7% | 28 | -23.8% | 32 | 135 | 71 | 1 | 3 |
| A.Walter [48] | OAK | -42 | 34 | -39 | 34 | -101.5% | 36 | -95.5% | 9 | 30 | -64 | 0 | 3 |
| P.Rivers [8] | SD | -45 | 35 | -47 | 35 | -41.7% | 32 | -42.7% | 24 | 60 | 6 | 0 | 2 |
| D.Brees [4] | NO | -51 | 36 | -55 | 36 | -72.4% | 35 | -77.9% | 16 | 57 | -57 | 0 | 3 |
| J.Cutler [35] | DEN | -65 | 37 | -66 | 37 | -159.0% | 37 | -160.0% | 9 | 10 | -120 | 0 | 4 |
Links:
[1] http://www.footballoutsiders.com/methods#dyar
[2] http://www.footballoutsiders.com/methods#dvoa
[3] http://www.footballoutsiders.com/player/16426/peyton-manning
[4] http://www.footballoutsiders.com/player/15478/drew-brees
[5] http://www.footballoutsiders.com/player/16646/carson-palmer
[6] http://www.footballoutsiders.com/player/15523/marc-bulger
[7] http://www.footballoutsiders.com/player/15472/tom-brady
[8] http://www.footballoutsiders.com/player/16771/philip-rivers
[9] http://www.footballoutsiders.com/player/16671/chad-pennington
[10] http://www.footballoutsiders.com/player/23611/tony-romo
[11] http://www.footballoutsiders.com/player/16501/donovan-mcnabb
[12] http://www.footballoutsiders.com/player/17465/steve-mcnair
[13] http://www.footballoutsiders.com/player/16792/ben-roethlisberger
[14] http://www.footballoutsiders.com/player/16148/damon-huard
[15] http://www.footballoutsiders.com/player/16424/eli-manning
[16] http://www.footballoutsiders.com/player/15811/brett-favre
[17] http://www.footballoutsiders.com/player/16315/jon-kitna
[18] http://www.footballoutsiders.com/player/17639/mark-brunell
[19] http://www.footballoutsiders.com/player/23501/jeff-garcia
[20] http://www.footballoutsiders.com/player/23607/jake-delhomme
[21] http://www.footballoutsiders.com/player/16366/matt-leinart
[22] http://www.footballoutsiders.com/player/16742/tim-rattay
[23] http://www.footballoutsiders.com/player/15550/jason-campbell
[24] http://www.footballoutsiders.com/player/15966/trent-green
[25] http://www.footballoutsiders.com/player/15897/david-garrard
[26] http://www.footballoutsiders.com/player/17283/vince-young
[27] http://www.footballoutsiders.com/player/16402/jp-losman
[28] http://www.footballoutsiders.com/player/15563/david-carr
[29] http://www.footballoutsiders.com/player/23503/kurt-warner
[30] http://www.footballoutsiders.com/player/17833/jake-plummer
[31] http://www.footballoutsiders.com/player/15984/rex-grossman
[32] http://www.footballoutsiders.com/player/16057/matt-hasselbeck
[33] http://www.footballoutsiders.com/player/16361/byron-leftwich
[34] http://www.footballoutsiders.com/player/17621/drew-bledsoe
[35] http://www.footballoutsiders.com/player/15684/jay-cutler
[36] http://www.footballoutsiders.com/player/15331/derek-anderson
[37] http://www.footballoutsiders.com/player/16029/joey-harrington
[38] http://www.footballoutsiders.com/player/17576/chris-weinke
[39] http://www.footballoutsiders.com/player/15678/daunte-culpepper
[40] http://www.footballoutsiders.com/player/16910/alex-smith
[41] http://www.footballoutsiders.com/player/16894/chris-simms
[42] http://www.footballoutsiders.com/player/17130/seneca-wallace
[43] http://www.footballoutsiders.com/player/16216/brad-johnson
[44] http://www.footballoutsiders.com/player/15875/charlie-frye
[45] http://www.footballoutsiders.com/player/17914/michael-vick
[46] http://www.footballoutsiders.com/player/17631/aaron-brooks
[47] http://www.footballoutsiders.com/player/15941/bruce-gradkowski
[48] http://www.footballoutsiders.com/player/17131/andrew-walter
[49] http://www.footballoutsiders.com/player/15393/charlie-batch
[50] http://www.footballoutsiders.com/player/16804/sage-rosenfels
[51] http://www.footballoutsiders.com/player/15814/aj-feeley
[52] http://www.footballoutsiders.com/player/15450/kyle-boller
[53] http://www.footballoutsiders.com/player/16850/matt-schaub
[54] http://www.footballoutsiders.com/player/23848/cleo-lemon
[55] http://www.footballoutsiders.com/player/23827/quinn-gray
[56] http://www.footballoutsiders.com/player/15451/brooks-bollinger
[57] http://www.footballoutsiders.com/player/15390/brett-basanez
[58] http://www.footballoutsiders.com/player/15573/matt-cassel
[59] http://www.footballoutsiders.com/player/16791/aaron-rodgers
[60] http://www.footballoutsiders.com/player/17085/marques-tuiasosopo
[61] http://www.footballoutsiders.com/player/16438/jamie-martin
[62] http://www.footballoutsiders.com/player/15974/brian-griese
[63] http://www.footballoutsiders.com/player/15635/kerry-collins
[64] http://www.footballoutsiders.com/player/16187/tarvaris-jackson