Historical RPI standings from the 2018 boys lacrosse season. All classes are included below.
Class 5A
Last updated: 5/7/2018 8:25:01 AM
| Rank | Team | RPI | Record | WP | OWP | OOWP | SOS |
| 1 | Regis Jesuit | 0.716387 | 14-1-0 | 0.933 | 0.689 | 0.554 | 2 |
| 2 | Mountain Vista | 0.653646 | 10-5-0 | 0.667 | 0.700 | 0.548 | 1 |
| 3 | Kent Denver | 0.652936 | 12-3-0 | 0.800 | 0.627 | 0.559 | 3 |
| 4 | Columbine | 0.651983 | 13-2-0 | 0.867 | 0.597 | 0.547 | 7 |
| 5 | Arapahoe | 0.630257 | 11-4-0 | 0.733 | 0.616 | 0.556 | 5 |
| 6 | Cherry Creek | 0.626240 | 12-3-0 | 0.800 | 0.567 | 0.572 | 12 |
| 7 | Rock Canyon | 0.610477 | 12-3-0 | 0.800 | 0.540 | 0.563 | 17 |
| 8 | Denver East | 0.601128 | 9-6-0 | 0.600 | 0.633 | 0.538 | 4 |
| 9 | Chaparral | 0.600543 | 12-3-0 | 0.800 | 0.526 | 0.549 | 21 |
| 10 | Colorado Academy | 0.595251 | 9-6-0 | 0.600 | 0.622 | 0.536 | 6 |
| 11 | Highlands Ranch | 0.588088 | 11-4-0 | 0.733 | 0.530 | 0.559 | 19 |
| 12 | Lewis-Palmer | 0.577245 | 9-6-0 | 0.600 | 0.588 | 0.533 | 11 |
| 13 | Heritage | 0.572390 | 9-6-0 | 0.600 | 0.567 | 0.556 | 13 |
| 14 | Dakota Ridge | 0.567848 | 13-2-0 | 0.867 | 0.437 | 0.531 | 36 |
| 15 | Monarch | 0.556151 | 9-6-0 | 0.600 | 0.543 | 0.539 | 18 |
| 16 | Legend | 0.551008 | 7-8-0 | 0.467 | 0.610 | 0.518 | 9 |
| 17 | Lakewood | 0.547917 | 11-4-0 | 0.733 | 0.470 | 0.519 | 34 |
| 18 | Fruita Monument | 0.541522 | 10-5-0 | 0.667 | 0.507 | 0.485 | 28 |
| 19 | Grandview | 0.538968 | 7-8-0 | 0.467 | 0.574 | 0.541 | 14 |
| 20 | Rocky Mountain | 0.537742 | 9-6-0 | 0.600 | 0.497 | 0.557 | 23 |
| 21 | Fairview | 0.534529 | 6-9-0 | 0.400 | 0.615 | 0.509 | 8 |
| 22 | Castle View | 0.526674 | 9-6-0 | 0.600 | 0.481 | 0.545 | 27 |
| 23 | Chatfield | 0.514994 | 6-9-0 | 0.400 | 0.569 | 0.522 | 16 |
| 24 | Wheat Ridge | 0.511431 | 5-10-0 | 0.333 | 0.587 | 0.537 | 10 |
| 25 | Palmer | 0.511168 | 6-8-0 | 0.429 | 0.558 | 0.500 | 20 |
| 26 | Cherokee Trail | 0.498788 | 7-8-0 | 0.467 | 0.502 | 0.524 | 24 |
| 27 | Douglas County | 0.489394 | 7-8-0 | 0.467 | 0.477 | 0.538 | 29 |
| 28 | Mullen | 0.483908 | 4-11-0 | 0.267 | 0.557 | 0.555 | 15 |
| 29 | Boulder | 0.450265 | 5-10-0 | 0.333 | 0.478 | 0.512 | 32 |
| 30 | Eaglecrest | 0.450164 | 6-9-0 | 0.400 | 0.452 | 0.496 | 37 |
| 31 | Pine Creek | 0.448053 | 5-10-0 | 0.333 | 0.468 | 0.522 | 33 |
| 32 | Prairie View | 0.445808 | 6-9-0 | 0.400 | 0.440 | 0.502 | 38 |
| 33 | Denver South | 0.444549 | 6-9-0 | 0.400 | 0.442 | 0.494 | 39 |
| 34 | ThunderRidge | 0.444388 | 4-11-0 | 0.267 | 0.496 | 0.519 | 26 |
| 35 | Grand Junction | 0.443690 | 4-10-0 | 0.286 | 0.508 | 0.473 | 30 |
| 36 | Ralston Valley | 0.430557 | 3-12-0 | 0.200 | 0.505 | 0.513 | 25 |
| 37 | Rangeview | 0.416808 | 6-9-0 | 0.400 | 0.387 | 0.493 | 40 |
| 38 | Smoky Hill | 0.409575 | 3-12-0 | 0.200 | 0.470 | 0.498 | 35 |
| 39 | Bear Creek | 0.406331 | 1-14-0 | 0.067 | 0.532 | 0.495 | 22 |
| 40 | Overland | 0.372017 | 0-15-0 | 0.000 | 0.500 | 0.488 | 31 |
Class 4A
Last updated: 5/7/2018 8:25:01 AM
| Rank | Team | RPI | Record | WP | OWP | OOWP | SOS |
| 1 | Thompson Valley | 0.659311 | 14-1-0 | 0.933 | 0.593 | 0.517 | 1 |
| 2 | Dawson School | 0.632809 | 14-1-0 | 0.933 | 0.533 | 0.531 | 8 |
| 3 | Battle Mountain | 0.617987 | 12-2-0 | 0.857 | 0.545 | 0.525 | 7 |
| 4 | Steamboat Springs | 0.608949 | 11-4-0 | 0.733 | 0.590 | 0.522 | 2 |
| 5 | Golden | 0.607141 | 12-3-0 | 0.800 | 0.562 | 0.505 | 5 |
| 6 | Aspen | 0.591768 | 12-2-0 | 0.857 | 0.509 | 0.491 | 12 |
| 7 | Cheyenne Mountain | 0.581484 | 11-4-0 | 0.733 | 0.550 | 0.492 | 9 |
| 8 | Valor Christian | 0.577029 | 11-4-0 | 0.733 | 0.541 | 0.494 | 10 |
| 9 | Littleton | 0.575515 | 10-5-0 | 0.667 | 0.573 | 0.490 | 3 |
| 10 | Green Mountain | 0.560213 | 12-3-0 | 0.800 | 0.482 | 0.478 | 17 |
| 11 | Evergreen | 0.544225 | 12-3-0 | 0.800 | 0.449 | 0.479 | 19 |
| 12 | Conifer | 0.523320 | 8-7-0 | 0.533 | 0.521 | 0.518 | 11 |
| 13 | Ponderosa | 0.514736 | 9-6-0 | 0.600 | 0.496 | 0.467 | 16 |
| 14 | Windsor | 0.506599 | 6-9-0 | 0.400 | 0.562 | 0.503 | 6 |
| 15 | Summit | 0.494311 | 8-6-0 | 0.571 | 0.445 | 0.515 | 18 |
| 16 | Vail Mountain | 0.491720 | 5-10-0 | 0.333 | 0.563 | 0.509 | 4 |
| 17 | Durango | 0.477167 | 8-6-0 | 0.571 | 0.437 | 0.463 | 21 |
| 18 | Air Academy | 0.474318 | 6-9-0 | 0.400 | 0.511 | 0.475 | 13 |
| 19 | Jefferson Academy | 0.469968 | 9-6-0 | 0.600 | 0.417 | 0.447 | 24 |
| 20 | Fountain Valley/Colorado Springs | 0.441366 | 7-4-0 | 0.636 | 0.352 | 0.424 | 32 |
| 21 | Glenwood Springs | 0.435948 | 4-11-0 | 0.267 | 0.489 | 0.499 | 14 |
| 22 | Eagle Valley | 0.435676 | 4-11-0 | 0.267 | 0.487 | 0.502 | 15 |
| 23 | Telluride | 0.433877 | 6-8-0 | 0.429 | 0.419 | 0.469 | 22 |
| 24 | Thomas Jefferson | 0.429343 | 7-6-0 | 0.538 | 0.365 | 0.448 | 30 |
| 25 | Lutheran | 0.398847 | 5-10-0 | 0.333 | 0.416 | 0.430 | 25 |
| 26 | George Washington | 0.396237 | 5-9-0 | 0.357 | 0.391 | 0.445 | 26 |
| 27 | Clear Creek | 0.384426 | 3-9-0 | 0.250 | 0.426 | 0.436 | 23 |
| 28 | Montrose | 0.370790 | 2-13-0 | 0.133 | 0.448 | 0.453 | 20 |
| 29 | Bishop Machebeuf | 0.366890 | 4-10-0 | 0.286 | 0.378 | 0.426 | 29 |
| 30 | Pueblo West | 0.347822 | 3-10-0 | 0.231 | 0.361 | 0.439 | 31 |
| 31 | Englewood | 0.334519 | 2-13-0 | 0.133 | 0.385 | 0.435 | 28 |
| 32 | Denver North | 0.323685 | 1-11-0 | 0.083 | 0.387 | 0.436 | 27 |
| 33 | St. Mary’s | 0.316535 | 2-11-0 | 0.154 | 0.344 | 0.425 | 33 |
| 34 | Kennedy | 0.268927 | 0-14-0 | 0.000 | 0.332 | 0.411 | 34 |