49 Wins, 55 Losses
| Date | Game Type | Upset Magnitude | |||
|---|---|---|---|---|---|
| 01/02/87 | Won | Lake Washington 57 | Mariner 52 | Non-league | 7.584 |
| 01/06/87 | Lost | Lake Washington 33 | Mercer Island 37 | League | 5.722 |
| 12/05/87 | Won | Lake Washington 59 | Kentridge 53 | Non-league | 7.988 |
| 12/21/87 | Lost | Lake Washington 55 | Cascade (Everett) 56 | Non-league | 1.372 |
| 12/22/87 | Lost | Lake Washington 50 | Kent-Meridian 58 | Non-league | 0.273 |
| 01/06/88 | Won | Lake Washington 62 | Newport (Bellevue) 47 | League | 4.153 |
| 12/30/88 | Lost | Lake Washington 59 | Everett 61 | Non-league | 5.939 |
| 01/04/89 | Won | Lake Washington 68 | Redmond 49 | League | 0.907 |
| 02/07/89 | Lost | Lake Washington 39 | Inglemoor 40 | League | 13.273 |
| 12/16/89 | Won | Lake Washington 47 | Mercer Island 41 | League | 1.135 |
| 02/17/90 | Won | Lake Washington 50 | Newport (Bellevue) 45 | Playoff | 10.599 |
| 02/24/90 | Lost | Lake Washington 50 | Bellevue 53 | Playoff | 1.487 |
| 11/30/90 | Lost | Lake Washington 42 | Blanchet 52 | Non-league | 7.063 |
| 12/12/90 | Lost | Lake Washington 49 | Bothell 57 | League | 2.402 |
| 01/09/91 | Lost | Lake Washington 39 | Sammamish 47 | League | 5.854 |
| 01/23/91 | Lost | Lake Washington 43 | Newport (Bellevue) 45 | League | 9.131 |
| 02/01/91 | Lost | Lake Washington 31 | Mercer Island 40 | League | 5.850 |
| 03/02/91 | Won | Lake Washington 43 | Garfield 38 | Playoff | 2.838 |
| 03/06/91 | Won | Lake Washington 58 | Lakes 54 | Playoff | 2.481 |
| 03/08/91 | Won | Lake Washington 70 | Redmond 66 | Playoff | 17.818 |
| 12/20/91 | Lost | Lake Washington 40 | Redmond 60 | League | 6.834 |
| 03/07/92 | Won | Lake Washington 58 | Edmonds-Woodway 40 | Playoff | 7.007 |
| 12/08/92 | Lost | Lake Washington 37 | Auburn 44 | Non-league | 2.445 |
| 12/22/92 | Won | Lake Washington 43 | Edmonds-Woodway 41 | Non-league | 10.683 |
| 01/06/93 | Won | Lake Washington 60 | Bothell 51 | League | 1.053 |
| 01/27/93 | Lost | Lake Washington 36 | Sammamish 38 | League | 14.160 |
| 02/19/93 | Won | Lake Washington 46 | Woodinville 43 | Playoff | 4.466 |
| 03/12/93 | Lost | Lake Washington 55 | Lakes 58 | Playoff | 1.984 |
| 01/05/94 | Lost | Lake Washington 45 | Redmond 48 | League | 17.143 |
| 03/12/94 | Lost | Lake Washington 57 | Mead 60 | Playoff | 1.599 |
| 01/27/95 | Lost | Lake Washington 36 | Interlake 44 | League | 14.759 |
| 03/11/95 | Lost | Lake Washington 35 | Kamiakin 41 | Playoff | 1.897 |
| 01/05/96 | Won | Lake Washington 52 | Bothell 36 | League | 3.100 |
| 01/12/96 | Lost | Lake Washington 46 | Eastlake 50 | League | 2.932 |
| 12/11/96 | Lost | Lake Washington 52 | Redmond 59 | League | 7.896 |
| 02/12/97 | Won | Lake Washington 61 | Bothell 59 | League | 11.969 |
| 02/18/97 | Lost | Lake Washington 49 | Redmond 55 | Playoff | 7.896 |
| 02/22/97 | Won | Lake Washington 51 | Eastlake 50 | Playoff | 1.360 |
| 12/15/97 | Won | Lake Washington 40 | Snohomish 37 | Non-league | 2.316 |
| 01/21/98 | Won | Lake Washington 61 | Roosevelt 56 | League | 7.232 |
| 01/30/98 | Lost | Lake Washington 58 | Franklin 60 | League | 8.328 |
| 02/24/98 | Lost | Lake Washington 55 | Franklin 62 | Playoff | 8.328 |
| 12/14/98 | Lost | Lake Washington 40 | Snohomish 46 | Non-league | 6.574 |
| 01/20/99 | Lost | Lake Washington 68 | Roosevelt 70 | League | 1.798 |
| 01/29/99 | Lost | Lake Washington 54 | Franklin 57 | League | 20.419 |
| 02/17/99 | Lost | Lake Washington 40 | Redmond 45 | Playoff | 7.540 |
| 03/12/99 | Won | Lake Washington 50 | South Kitsap 43 | Playoff | 2.964 |
| 03/02/00 | Lost | Lake Washington 41 | Redmond 57 | Playoff | 1.291 |
| 12/06/00 | Lost | Lake Washington 45 | Sammamish 46 | Non-league | 9.179 |
| 01/05/01 | Won | Lake Washington 43 | Roosevelt 41 | League | 9.584 |
| 01/17/01 | Lost | Lake Washington 48 | Juanita 55 | League | 8.700 |
| 12/17/01 | Lost | Lake Washington 23 | Issaquah 26 | Non-league | 6.334 |
| 01/25/02 | Won | Lake Washington 41 | Garfield 34 | League | 0.342 |
| 12/20/02 | Lost | Lake Washington 47 | Roosevelt 48 | League | 6.384 |
| 01/22/03 | Won | Lake Washington 60 | Garfield 54 | League | 7.867 |
| 01/24/03 | Lost | Lake Washington 46 | Bothell 52 | League | 19.055 |
| 01/29/03 | Lost | Lake Washington 58 | Inglemoor 60 | League | 15.819 |
| 12/01/04 | Won | Lake Washington 66 | Issaquah 54 | Non-league | 9.164 |
| 02/26/05 | Won | Lake Washington 56 | Inglemoor 48 | Playoff | 8.492 |
| 02/10/06 | Won | Lake Washington 52 | Eastlake 42 | League | 2.324 |
| 11/26/06 | Lost | Lake Washington 46 | Tahoma 53 | Non-league | 4.108 |
| 12/05/06 | Won | Lake Washington 56 | Eastlake 52 | League | 8.429 |
| 01/26/07 | Won | Lake Washington 45 | Franklin 39 | League | 4.839 |
| 01/30/07 | Won | Lake Washington 53 | Redmond 50 | League | 1.807 |
| 02/07/07 | Won | Lake Washington 52 | Inglemoor 49 | League | 11.641 |
| 12/12/07 | Won | Lake Washington 46 | Franklin 41 | League | 3.350 |
| 01/30/08 | Lost | Lake Washington 55 | Garfield 62 | League | 7.043 |
| 01/08/10 | Won | Lake Washington 45 | Roosevelt 43 | League | 7.247 |
| 01/13/10 | Won | Lake Washington 48 | Eastlake 42 | League | 12.122 |
| 02/20/10 | Won | Lake Washington 43 | Skyline 40 | Playoff | 9.226 |
| 01/05/11 | Won | Lake Washington 44 | Liberty (Issaquah) 39 | League | 0.368 |
| 01/12/11 | Won | Lake Washington 58 | Mercer Island 50 | League | 3.971 |
| 01/28/11 | Lost | Lake Washington 33 | Bellevue 36 | League | 1.664 |
| 12/28/11 | Lost | Lake Washington 57 | Bainbridge 60 | Non-league | 1.824 |
| 01/27/12 | Won | Lake Washington 47 | Bellevue 40 | League | 2.867 |
| 01/28/12 | Won | Lake Washington 43 | Juanita 38 | League | 11.244 |
| 02/03/12 | Lost | Lake Washington 44 | Mount Si 54 | League | 4.280 |
| 02/07/12 | Lost | Lake Washington 41 | Liberty (Issaquah) 42 | Playoff | 2.434 |
| 02/11/12 | Lost | Lake Washington 35 | Bainbridge 38 | Playoff | 1.824 |
| 02/09/13 | Lost | Lake Washington 53 | Sehome 54 | Playoff | 5.191 |
| 12/04/13 | Won | Lake Washington 70 | Cedarcrest 58 | Non-league | 2.900 |
| 12/30/13 | Lost | Lake Washington 34 | Enumclaw 54 | Non-league | 9.408 |
| 02/14/14 | Lost | Lake Washington 48 | Burlington-Edison 63 | Playoff | 2.129 |
| 02/17/14 | Won | Lake Washington 71 | Cedarcrest 60 | Playoff | 2.900 |
| 02/28/14 | Won | Lake Washington 51 | Sumner 44 | Playoff | 0.616 |
| 12/06/14 | Lost | Lake Washington 47 | Redmond 53 | Non-league | 7.881 |
| 12/09/14 | Lost | Lake Washington 35 | Interlake 39 | League | 10.767 |
| 12/12/14 | Lost | Lake Washington 29 | Sammamish 45 | League | 3.883 |
| 01/09/15 | Won | Lake Washington 59 | Mercer Island 51 | League | 16.861 |
| 01/30/15 | Won | Lake Washington 74 | Liberty (Issaquah) 61 | League | 7.324 |
| 01/29/16 | Lost | Lake Washington 38 | Liberty (Issaquah) 50 | League | 3.867 |
| 12/07/16 | Won | Lake Washington 46 | Interlake 45 | League | 3.527 |
| 12/10/16 | Lost | Lake Washington 45 | Kennedy Catholic 48 | Non-league | 0.848 |
| 12/17/16 | Lost | Lake Washington 48 | Mount Tahoma 52 | Non-league | 14.292 |
| 01/05/18 | Won | Lake Washington 48 | Mercer Island 44 | League | 9.554 |
| 01/12/18 | Won | Lake Washington 59 | Sammamish 39 | League | 0.808 |
| 12/19/18 | Lost | Lake Washington 38 | Liberty (Issaquah) 51 | League | 8.687 |
| 12/26/18 | Lost | Lake Washington 47 | Meadowdale 57 | Non-league | 0.548 |
| 01/05/19 | Won | Lake Washington 56 | Stanwood 52 | Non-league | 0.175 |
| 02/01/19 | Lost | Lake Washington 58 | Juanita 63 | League | 5.706 |
| 02/15/19 | Won | Lake Washington 47 | Roosevelt 45 | Playoff | 2.511 |
| 01/22/20 | Lost | Lake Washington 46 | Sammamish 47 | League | 17.789 |
| 03/05/20 | Won | Lake Washington 48 | Mount Spokane 45 | Playoff | 13.018 |
| 03/06/20 | Won | Lake Washington 62 | Eastside Catholic 49 | Playoff | 13.373 |
33 Wins, 42 Losses
| Date | Game Type | Upset Magnitude | |||
|---|---|---|---|---|---|
| 12/10/02 | Won | Lake Washington 68 | Mount Si 64 | Non-league | 4.399 |
| 01/14/03 | Lost | Lake Washington 59 | Ballard 70 | League | 3.321 |
| 02/28/03 | Won | Lake Washington 89 | Roosevelt 87 | Playoff | 7.656 |
| 12/12/03 | Won | Lake Washington 68 | Bothell 62 | League | 1.836 |
| 12/19/03 | Lost | Lake Washington 52 | Roosevelt 57 | League | 0.737 |
| 01/23/04 | Won | Lake Washington 80 | Bothell 67 | League | 1.836 |
| 01/30/04 | Lost | Lake Washington 61 | Roosevelt 64 | League | 0.737 |
| 02/10/04 | Lost | Lake Washington 41 | Eastlake 57 | League | 1.276 |
| 12/04/04 | Won | Lake Washington 62 | Prairie 56 | Non-league | 7.029 |
| 02/01/05 | Lost | Lake Washington 42 | Garfield 62 | League | 4.480 |
| 02/04/05 | Lost | Lake Washington 51 | Eastlake 52 | League | 4.067 |
| 03/01/05 | Lost | Lake Washington 41 | Garfield 54 | Playoff | 4.480 |
| 01/31/06 | Lost | Lake Washington 65 | Garfield 66 | League | 2.502 |
| 02/07/06 | Lost | Lake Washington 62 | Skyline 66 | League | 13.151 |
| 02/21/06 | Lost | Lake Washington 42 | Eastlake 44 | Playoff | 3.122 |
| 02/24/06 | Lost | Lake Washington 46 | Bothell 51 | Playoff | 9.273 |
| 12/02/06 | Won | Lake Washington 68 | Gig Harbor 57 | Non-league | 4.887 |
| 12/05/06 | Won | Lake Washington 52 | Eastlake 46 | League | 4.659 |
| 12/27/07 | Lost | Lake Washington 40 | Hazen 48 | Non-league | 10.920 |
| 01/22/08 | Won | Lake Washington 62 | Ballard 32 | League | 1.384 |
| 02/08/08 | Lost | Lake Washington 53 | Eastlake 64 | League | 3.170 |
| 01/13/09 | Lost | Lake Washington 47 | Eastlake 63 | League | 1.799 |
| 01/23/09 | Lost | Lake Washington 42 | Woodinville 43 | League | 1.987 |
| 01/30/09 | Lost | Lake Washington 48 | Ballard 49 | League | 1.905 |
| 01/31/09 | Won | Lake Washington 75 | Bothell 60 | League | 0.080 |
| 02/10/09 | Won | Lake Washington 53 | Roosevelt 39 | League | 2.835 |
| 12/05/09 | Won | Lake Washington 63 | Mount Si 61 | Non-league | 3.083 |
| 12/08/09 | Lost | Lake Washington 51 | Woodinville 54 | League | 3.111 |
| 12/22/09 | Won | Lake Washington 73 | Chief Sealth 67 | Non-league | 0.779 |
| 02/02/10 | Lost | Lake Washington 86 | Newport (Bellevue) 89 | League | 11.719 |
| 02/05/10 | Lost | Lake Washington 51 | Bothell 69 | League | 4.351 |
| 02/19/10 | Won | Lake Washington 77 | Garfield 72 | Playoff | 6.072 |
| 12/10/10 | Lost | Lake Washington 55 | Mount Si 65 | League | 5.131 |
| 12/11/10 | Won | Lake Washington 47 | Redmond 42 | Non-league | 3.290 |
| 01/07/11 | Won | Lake Washington 69 | Bellevue 66 | League | 14.621 |
| 01/21/11 | Lost | Lake Washington 55 | Mount Si 58 | League | 5.131 |
| 01/25/11 | Won | Lake Washington 59 | Sammamish 56 | League | 1.481 |
| 02/05/11 | Won | Lake Washington 66 | Sammamish 64 | Playoff | 1.481 |
| 12/13/11 | Lost | Lake Washington 69 | Sammamish 71 | League | 9.817 |
| 12/29/11 | Won | Lake Washington 46 | O'Dea 44 | Non-league | 5.105 |
| 01/10/12 | Lost | Lake Washington 48 | Mercer Island 58 | League | 3.164 |
| 03/03/12 | Won | Lake Washington 52 | O'Dea 51 | Playoff | 5.105 |
| 12/21/12 | Lost | Lake Washington 57 | Sammamish 61 | League | 4.504 |
| 01/04/13 | Lost | Lake Washington 44 | Liberty (Issaquah) 64 | League | 2.607 |
| 01/11/13 | Won | Lake Washington 55 | Mount Si 47 | League | 8.171 |
| 01/22/13 | Lost | Lake Washington 59 | Juanita 64 | League | 4.242 |
| 01/25/13 | Lost | Lake Washington 38 | Liberty (Issaquah) 41 | League | 2.607 |
| 02/11/13 | Lost | Lake Washington 58 | Cedarcrest 61 | Playoff | 5.630 |
| 12/21/13 | Lost | Lake Washington 62 | Bishop Blanchet 67 | Non-league | 8.620 |
| 01/07/14 | Won | Lake Washington 60 | Mercer Island 46 | League | 3.224 |
| 02/01/14 | Lost | Lake Washington 52 | Sammamish 65 | League | 7.624 |
| 02/04/14 | Lost | Lake Washington 37 | Liberty (Issaquah) 46 | League | 16.759 |
| 02/22/14 | Lost | Lake Washington 53 | Lynden 57 | Playoff | 3.067 |
| 03/06/14 | Won | Lake Washington 52 | Clarkston 48 | Playoff | 2.656 |
| 03/07/14 | Lost | Lake Washington 37 | Lynden 50 | Playoff | 3.067 |
| 12/02/14 | Won | Lake Washington 57 | Eastlake 49 | Non-league | 2.780 |
| 12/05/14 | Won | Lake Washington 67 | Sultan 53 | Non-league | 0.675 |
| 02/06/15 | Lost | Lake Washington 73 | Juanita 74 | League | 4.398 |
| 12/19/15 | Won | Lake Washington 80 | Bothell 73 | Non-league | 0.566 |
| 01/08/16 | Won | Lake Washington 64 | Mercer Island 63 | League | 8.516 |
| 01/12/16 | Lost | Lake Washington 57 | Juanita 74 | League | 9.769 |
| 12/06/16 | Lost | Lake Washington 58 | Interlake 65 | League | 17.996 |
| 01/03/17 | Lost | Lake Washington 61 | Redmond 66 | League | 3.202 |
| 01/06/17 | Won | Lake Washington 61 | Mercer Island 60 | League | 7.208 |
| 01/27/17 | Lost | Lake Washington 45 | Redmond 48 | League | 3.202 |
| 01/31/17 | Won | Lake Washington 48 | Mercer Island 42 | League | 7.208 |
| 01/03/18 | Lost | Lake Washington 46 | Redmond 54 | League | 6.164 |
| 01/05/18 | Won | Lake Washington 59 | Mercer Island 57 | League | 3.691 |
| 12/14/18 | Lost | Lake Washington 62 | Bellevue 71 | League | 0.257 |
| 01/25/19 | Won | Lake Washington 57 | Liberty (Issaquah) 53 | League | 0.175 |
| 02/06/19 | Lost | Lake Washington 50 | Interlake 51 | Playoff | 7.765 |
| 12/03/19 | Won | Lake Washington 67 | Kamiak 60 | Non-league | 3.930 |
| 12/17/19 | Won | Lake Washington 63 | Bothell 46 | Non-league | 1.843 |
| 01/28/20 | Won | Lake Washington 73 | Bellevue 68 | League | 4.417 |
| 01/30/20 | Lost | Lake Washington 44 | Juanita 45 | League | 9.998 |