2018 Stanford Cardinal K.J. Costello #3 Passing Split Stats through 01/07/2019
| Split | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G |
|---|---|---|---|---|---|---|---|---|---|---|---|
| All Games | 13 | 413 | 269 | 65.1 | 3540 | 8.6 | 29 | 11 | 154.97 | 31.8 | 272.3 |
| at Home | 6 | 205 | 137 | 66.8 | 1775 | 8.7 | 16 | 6 | 159.48 | 34.2 | 295.8 |
| on Road/Neutral Site | 7 | 208 | 132 | 63.5 | 1765 | 8.5 | 13 | 5 | 150.56 | 29.7 | 252.1 |
| in Wins | 9 | 259 | 165 | 63.7 | 2315 | 8.9 | 21 | 5 | 161.69 | 28.8 | 257.2 |
| in Losses | 4 | 154 | 104 | 67.5 | 1225 | 8.0 | 8 | 6 | 143.70 | 38.5 | 306.3 |
| vs. Conference | 9 | 308 | 210 | 68.2 | 2715 | 8.8 | 22 | 7 | 161.25 | 34.2 | 301.7 |
| vs. Non-Conference | 4 | 105 | 59 | 56.2 | 825 | 7.9 | 7 | 4 | 136.57 | 26.3 | 206.3 |
| vs. Ranked (AP) | 3 | 113 | 78 | 69.0 | 844 | 7.5 | 7 | 4 | 145.13 | 37.7 | 281.3 |
| vs. Unranked (AP) | 10 | 300 | 191 | 63.7 | 2696 | 9.0 | 22 | 7 | 158.69 | 30.0 | 269.6 |
| vs. FBS (I-A) | 12 | 383 | 252 | 65.8 | 3326 | 8.7 | 27 | 9 | 157.32 | 31.9 | 277.2 |
| vs. FCS (I-AA) | 1 | 30 | 17 | 56.7 | 214 | 7.1 | 2 | 2 | 125.26 | 30.0 | 214.0 |
| vs. FBS Winning | 8 | 269 | 184 | 68.4 | 2352 | 8.7 | 17 | 7 | 157.50 | 33.6 | 294.0 |
| vs. FBS Non-Winning | 4 | 114 | 68 | 59.6 | 974 | 8.5 | 10 | 2 | 156.86 | 28.5 | 243.5 |
| vs. FBS Power 5 | 10 | 325 | 216 | 66.5 | 2820 | 8.7 | 22 | 7 | 157.38 | 32.5 | 282.0 |
| vs. FBS non-Power 5 | 2 | 58 | 36 | 62.1 | 506 | 8.7 | 5 | 2 | 156.90 | 29.0 | 253.0 |
| in August/September | 5 | 141 | 88 | 62.4 | 1230 | 8.7 | 11 | 4 | 155.75 | 28.2 | 246.0 |
| in October | 3 | 113 | 82 | 72.6 | 935 | 8.3 | 6 | 2 | 156.05 | 37.7 | 311.7 |
| in November | 3 | 113 | 75 | 66.4 | 1033 | 9.1 | 11 | 5 | 166.44 | 37.7 | 344.3 |
| in December/January | 2 | 46 | 24 | 52.2 | 342 | 7.4 | 1 | 0 | 121.79 | 23.0 | 171.0 |