Best Upsets (2019)
Rankings / Best Games / Best Upsets / Best Upcoming Games
How the FanLax Computer Rankings Work
Sports / Lacrosse / High School Boys / National A
| – | Team | Rank | VS | Rank | Opp Team | Details |
| 1 | Garden Spot (PA) | #2879 | 7 - 6 | #976 | Lancaster CDS (PA) | 04/25/2019 |
| 2 | Milton VT (VT) | #2908 | 9 - 8 | #1214 | Spaulding VT (VT) | 06/01/2019 |
| 3 | Palmer (CO) | #2584 | 11 - 10 | #905 | Grand Junction (CO) | 05/03/2019 |
| 4 | Classical RI (RI) | #3254 | 18 - 0 | #1661 | Lincoln RI (RI) | 05/07/2019 |
| 5 | Marlborough (MA) | #3079 | 16 - 3 | #1632 | Nashoba Regional (MA) | 05/13/2019 |
| 6 | Ridgeview (OR) | #3317 | 1 - 0 | #1877 | Camas (WA) | 04/20/2019 |
| 7 | Waterford UT (UT) | #2433 | 4 - 3 | #1090 | Skyline UT (UT) | 04/05/2019 |
| 8 | Mundelein (IL) | #2604 | 11 - 10 | #1281 | Grayslake North (IL) | 05/20/2019 |
| 9 | Westwood NJ (NJ) | #2324 | 12 - 10 | #1021 | Dwight-Englewood (NJ) | 04/23/2019 |
| 10 | Olympian HS (CA) | #2923 | 1 - 0 | #1660 | Valley Center (CA) | 03/09/2019 |
| 11 | Islands (GA) | #3855 | 11 - 2 | #2614 | South Effingham LC (GA) | 03/05/2019 |
| 12 | Chicopee (MA) | #3029 | 14 - 5 | #1798 | East Longmeadow (MA) | 04/11/2019 |
| 13 | Hoover AL (AL) | #2164 | 15 - 7 | #944 | Auburn AL (AL) | 02/10/2019 |
| 14 | Deer Creek (OK) | #2848 | 8 - 4 | #1646 | Jenks (OK) | 02/23/2019 |
| 15 | South Fork (FL) | #2797 | 13 - 9 | #1602 | Vero Beach (FL) | 04/05/2019 |
| 16 | Bothell (WA) | #2736 | 13 - 11 | #1557 | Centennial NV (NV) | 03/30/2019 |
| 17 | Bronx HS Science (NY) | #2322 | 4 - 3 | #1157 | Tottenville (NY) | 04/08/2019 |
| 18 | Triton Regional MA (MA) | #2276 | 10 - 4 | #1139 | Winthrop (MA) | 06/03/2019 |
| 19 | Glacier LC (MT) | #2314 | 13 - 3 | #1178 | Whitefish LC (MT) | 04/18/2019 |
| 20 | Oakland Tech (CA) | #1871 | 8 - 4 | #742 | Woodcreek LC (CA) | 02/24/2019 |
| 21 | Oswego (NY) | #1867 | 10 - 9 | #745 | East Syracuse-Minoa (NY) | 04/16/2019 |
| 22 | M L Collins (KY) | #3131 | 12 - 8 | #2012 | Madison County LC KY (KY) | 03/07/2019 |
| 23 | Red Bank Catholic (NJ) | #1860 | 14 - 13 | #741 | Wall Township (NJ) | 04/22/2019 |
| 24 | North St Paul (MN) | #3733 | 6 - 4 | #2617 | Cooper (MN) | 04/15/2019 |
| 25 | Brunswick MD (MD) | #1870 | 13 - 10 | #760 | Oakdale (MD) | 04/18/2019 |