63 Wins, 50 Losses
| Date | Game Type | Upset Magnitude | |||
|---|---|---|---|---|---|
| 01/06/87 | Won | Mercer Island 37 | Lake Washington 33 | League | 5.722 |
| 02/06/87 | Lost | Mercer Island 40 | Bothell 54 | League | 13.082 |
| 01/08/88 | Lost | Mercer Island 40 | Sammamish 48 | League | 6.416 |
| 02/12/88 | Won | Mercer Island 43 | Juanita 41 | Playoff | 8.041 |
| 02/17/89 | Lost | Mercer Island 43 | Newport (Newport) 67 | Playoff | 3.543 |
| 12/08/89 | Lost | Mercer Island L | Bellevue W | League | 2.621 |
| 12/12/89 | Lost | Mercer Island 37 | Woodinville 39 | League | 1.205 |
| 12/16/89 | Lost | Mercer Island 41 | Lake Washington 47 | League | 1.135 |
| 01/19/90 | Won | Mercer Island 48 | Redmond 46 | League | 11.760 |
| 01/26/90 | Lost | Mercer Island 33 | Bothell 41 | League | 12.378 |
| 02/09/90 | Lost | Mercer Island 35 | Bellevue 44 | League | 2.621 |
| 02/17/90 | Lost | Mercer Island 45 | Woodinville 51 | Playoff | 1.205 |
| 12/11/90 | Lost | Mercer Island 44 | Bellevue 50 | League | 6.999 |
| 12/27/90 | Won | Mercer Island 55 | Rainier Beach 45 | Non-league | 1.010 |
| 12/28/90 | Lost | Mercer Island 33 | Sammamish 36 | Non-league | 0.004 |
| 12/29/90 | Won | Mercer Island 40 | Franklin 27 | Non-league | 5.939 |
| 01/12/91 | Won | Mercer Island 49 | Bothell 43 | League | 3.448 |
| 01/30/91 | Lost | Mercer Island 41 | Newport (Bellevue) 46 | League | 3.281 |
| 02/01/91 | Won | Mercer Island 40 | Lake Washington 31 | League | 5.850 |
| 01/17/92 | Won | Mercer Island 56 | Redmond 54 | League | 1.152 |
| 01/22/92 | Lost | Mercer Island 38 | Inglemoor 39 | League | 12.132 |
| 03/12/92 | Lost | Mercer Island 30 | Sammamish 36 | Playoff | 4.952 |
| 12/11/92 | Won | Mercer Island 39 | Sammamish 36 | League | 4.769 |
| 01/06/93 | Lost | Mercer Island 48 | Bellevue 51 | League | 7.591 |
| 01/13/93 | Lost | Mercer Island 44 | Juanita 49 | League | 8.485 |
| 01/21/94 | Lost | Mercer Island 42 | Issaquah 52 | League | 2.540 |
| 01/28/94 | Lost | Mercer Island 50 | Inglemoor 54 | League | 1.994 |
| 02/10/95 | Won | Mercer Island 46 | Bellevue 35 | League | 10.800 |
| 12/15/95 | Won | Mercer Island 53 | Sammamish 44 | League | 4.780 |
| 12/28/95 | Lost | Mercer Island 39 | Newport (Bellevue) 49 | Non-league | 6.495 |
| 01/05/96 | Won | Mercer Island 54 | Interlake 42 | League | 14.038 |
| 12/13/96 | Lost | Mercer Island 43 | Bellevue 45 | League | 2.561 |
| 01/08/97 | Lost | Mercer Island 32 | Newport (Bellevue) 48 | League | 1.172 |
| 01/24/97 | Won | Mercer Island 58 | Juanita 50 | League | 6.039 |
| 12/31/97 | Won | Mercer Island 52 | Franklin 48 | Non-league | 7.639 |
| 01/16/98 | Lost | Mercer Island 43 | Interlake 54 | League | 2.373 |
| 01/21/98 | Won | Mercer Island 47 | Mount Si 43 | League | 5.742 |
| 01/23/98 | Lost | Mercer Island 50 | Sammamish 68 | League | 5.173 |
| 02/14/98 | Won | Mercer Island 61 | Liberty (Issaquah) 57 | Playoff | 1.949 |
| 02/17/98 | Lost | Mercer Island 43 | Mount Rainier 48 | Playoff | 0.918 |
| 12/04/98 | Lost | Mercer Island 29 | Lakeside (Seattle) 41 | Non-league | 1.639 |
| 12/09/98 | Won | Mercer Island 57 | Franklin 42 | Non-league | 1.823 |
| 01/13/99 | Won | Mercer Island 46 | Bellevue 44 | League | 13.018 |
| 01/15/99 | Lost | Mercer Island 47 | Skyline 53 | League | 9.448 |
| 02/20/99 | Lost | Mercer Island 38 | Mount Si 42 | Playoff | 9.412 |
| 02/23/99 | Lost | Mercer Island 40 | Lakeside (Seattle) 51 | Playoff | 1.639 |
| 12/03/99 | Lost | Mercer Island 43 | Garfield 51 | Non-league | 1.663 |
| 12/18/99 | Won | Mercer Island 48 | King's 47 | Non-league | 0.171 |
| 02/04/00 | Won | Mercer Island 41 | Issaquah 36 | League | 8.962 |
| 02/12/00 | Lost | Mercer Island 45 | Skyline 57 | Playoff | 0.095 |
| 12/30/00 | Won | Mercer Island 47 | Skyline 37 | Non-league | 4.409 |
| 01/03/01 | Won | Mercer Island 59 | Skyline 51 | League | 4.409 |
| 02/13/01 | Won | Mercer Island 65 | Holy Names 55 | Playoff | 7.513 |
| 11/30/01 | Won | Mercer Island 48 | Franklin 39 | Non-league | 1.592 |
| 01/11/02 | Won | Mercer Island 60 | Liberty (Issaquah) 52 | League | 0.844 |
| 01/18/02 | Won | Mercer Island 59 | Skyline 49 | League | 10.984 |
| 01/23/02 | Won | Mercer Island 53 | Mount Si 38 | League | 3.015 |
| 01/30/02 | Won | Mercer Island 57 | Newport (Bellevue) 52 | League | 6.202 |
| 02/09/02 | Won | Mercer Island 43 | Newport (Bellevue) 42 | Playoff | 6.202 |
| 02/15/02 | Won | Mercer Island 64 | Liberty (Issaquah) 62 | Playoff | 0.844 |
| 12/07/02 | Won | Mercer Island 46 | Holy Names 35 | Non-league | 4.757 |
| 02/11/03 | Lost | Mercer Island 47 | Liberty (Issaquah) 48 | Playoff | 1.986 |
| 12/11/03 | Lost | Mercer Island 38 | Cedarcrest 40 | League | 14.303 |
| 12/03/04 | Won | Mercer Island 45 | Juanita 39 | Non-league | 1.679 |
| 01/13/06 | Won | Mercer Island 50 | Liberty (Issaquah) 47 | League | 6.923 |
| 01/10/07 | Won | Mercer Island 63 | Bellevue 60 | League | 6.625 |
| 02/14/07 | Won | Mercer Island 49 | Newport (Bellevue) 44 | Playoff | 2.416 |
| 12/05/07 | Won | Mercer Island 61 | Mount Si 60 | League | 0.476 |
| 01/22/08 | Lost | Mercer Island 73 | Cedarcrest 75 | Non-league | 9.686 |
| 02/12/08 | Won | Mercer Island 61 | Skyline 41 | Playoff | 2.576 |
| 02/14/08 | Won | Mercer Island 61 | Issaquah 60 | Playoff | 13.653 |
| 02/04/09 | Won | Mercer Island 66 | Bellevue 58 | League | 0.695 |
| 02/12/09 | Lost | Mercer Island 47 | Mount Si 57 | League | 2.796 |
| 02/19/09 | Won | Mercer Island 46 | Bellevue 44 | Playoff | 0.695 |
| 03/12/09 | Won | Mercer Island 57 | Ferndale 51 | Playoff | 0.179 |
| 03/13/09 | Won | Mercer Island 56 | Yelm 47 | Playoff | 0.266 |
| 02/03/10 | Lost | Mercer Island 57 | Bellevue 59 | League | 11.353 |
| 03/12/10 | Lost | Mercer Island 55 | Cleveland 57 | Playoff | 8.706 |
| 03/13/10 | Lost | Mercer Island 36 | Shadle Park 49 | Playoff | 0.919 |
| 12/16/10 | Lost | Mercer Island 53 | Liberty (Issaquah) 58 | League | 3.603 |
| 01/12/11 | Lost | Mercer Island 50 | Lake Washington 58 | League | 3.971 |
| 01/28/11 | Won | Mercer Island 61 | Juanita 40 | League | 3.832 |
| 02/15/11 | Won | Mercer Island 65 | Cleveland 62 | Playoff | 11.303 |
| 02/17/11 | Won | Mercer Island 57 | Seattle Prep 45 | Playoff | 0.606 |
| 02/25/11 | Lost | Mercer Island 64 | Glacier Peak 69 | Playoff | 2.521 |
| 01/04/12 | Lost | Mercer Island 52 | Interlake 56 | League | 7.928 |
| 01/13/12 | Won | Mercer Island 47 | Mount Si 43 | League | 5.431 |
| 02/03/12 | Won | Mercer Island 53 | Bellevue 52 | League | 12.577 |
| 01/07/13 | Won | Mercer Island 54 | Newport (Bellevue) 50 | Non-league | 6.096 |
| 01/11/13 | Won | Mercer Island 57 | Juanita 46 | League | 0.889 |
| 02/05/13 | Won | Mercer Island 54 | Juanita 43 | Playoff | 0.889 |
| 01/10/14 | Won | Mercer Island 50 | Bellevue 49 | League | 10.977 |
| 01/29/14 | Won | Mercer Island 53 | Liberty (Issaquah) 45 | League | 6.046 |
| 02/11/14 | Won | Mercer Island 38 | Liberty (Issaquah) 27 | Playoff | 6.046 |
| 03/01/14 | Won | Mercer Island 59 | Glacier Peak 55 | Playoff | 12.259 |
| 12/12/14 | Lost | Mercer Island 36 | Stanwood 45 | Non-league | 1.893 |
| 01/09/15 | Lost | Mercer Island 51 | Lake Washington 59 | League | 16.861 |
| 01/30/15 | Lost | Mercer Island 41 | Sammamish 42 | League | 20.744 |
| 02/10/15 | Lost | Mercer Island 53 | Juanita 60 | Playoff | 1.053 |
| 02/21/15 | Won | Mercer Island 55 | Bishop Blanchet 49 | Playoff | 8.051 |
| 02/20/16 | Won | Mercer Island 48 | West Seattle 44 | Playoff | 1.742 |
| 02/27/16 | Lost | Mercer Island 41 | Prairie 57 | Playoff | 2.921 |
| 02/09/17 | Lost | Mercer Island 45 | Bellevue 49 | Playoff | 7.044 |
| 02/16/17 | Won | Mercer Island 50 | Bishop Blanchet 44 | Playoff | 0.558 |
| 02/18/17 | Lost | Mercer Island 50 | West Seattle 58 | Playoff | 5.903 |
| 03/02/17 | Won | Mercer Island 52 | Kamiakin 43 | Playoff | 2.840 |
| 03/04/17 | Won | Mercer Island 52 | Bishop Blanchet 47 | Playoff | 0.558 |
| 12/13/17 | Lost | Mercer Island 36 | Interlake 44 | League | 5.145 |
| 01/05/18 | Lost | Mercer Island 44 | Lake Washington 48 | League | 9.554 |
| 01/26/18 | Won | Mercer Island 50 | Bellevue 41 | League | 24.406 |
| 01/23/19 | Won | Mercer Island 59 | Interlake 57 | League | 7.177 |
| 01/29/20 | Won | Mercer Island 47 | Interlake 44 | League | 1.849 |
| 02/07/20 | Won | Mercer Island 58 | Bellevue 49 | League | 5.937 |
16 Wins, 44 Losses
| Date | Game Type | Upset Magnitude | |||
|---|---|---|---|---|---|
| 12/14/02 | Lost | Mercer Island 44 | Garfield 47 | Non-league | 2.472 |
| 01/07/03 | Lost | Mercer Island 28 | Newport (Bellevue) 37 | League | 6.019 |
| 02/15/03 | Lost | Mercer Island 52 | Issaquah 54 | Playoff | 3.265 |
| 03/07/03 | Lost | Mercer Island 62 | Issaquah 76 | Playoff | 3.265 |
| 12/15/03 | Lost | Mercer Island 56 | Bothell 59 | Non-league | 5.265 |
| 01/21/05 | Won | Mercer Island 58 | Issaquah 52 | League | 2.470 |
| 01/25/05 | Lost | Mercer Island 65 | Sammamish 67 | League | 3.135 |
| 02/08/05 | Lost | Mercer Island 41 | Bellevue 54 | Playoff | 10.094 |
| 02/15/05 | Lost | Mercer Island 52 | West Seattle 68 | Playoff | 2.270 |
| 12/12/05 | Lost | Mercer Island 53 | Issaquah 56 | League | 3.421 |
| 01/06/06 | Lost | Mercer Island 44 | Interlake 47 | League | 13.157 |
| 01/10/06 | Lost | Mercer Island 37 | Bellevue 40 | League | 4.284 |
| 01/17/06 | Lost | Mercer Island 48 | Newport (Bellevue) 53 | League | 3.132 |
| 01/27/06 | Won | Mercer Island 51 | Mount Si 44 | League | 3.922 |
| 02/07/06 | Lost | Mercer Island 38 | Newport (Bellevue) 39 | Playoff | 3.132 |
| 12/02/06 | Won | Mercer Island 59 | Eastlake 58 | Non-league | 2.960 |
| 01/09/07 | Won | Mercer Island 47 | Bellevue 34 | League | 4.315 |
| 02/06/07 | Lost | Mercer Island 43 | Newport (Bellevue) 55 | League | 4.961 |
| 02/12/07 | Won | Mercer Island 62 | Issaquah 52 | League | 2.446 |
| 02/16/07 | Lost | Mercer Island 53 | Newport (Bellevue) 55 | Playoff | 4.961 |
| 02/22/07 | Lost | Mercer Island 43 | West Seattle 47 | Playoff | 8.555 |
| 02/26/08 | Won | Mercer Island 46 | Seattle Prep 45 | Playoff | 2.455 |
| 03/05/08 | Lost | Mercer Island 42 | Columbia River 60 | Playoff | 8.779 |
| 03/06/08 | Lost | Mercer Island 48 | Meadowdale 52 | Playoff | 5.163 |
| 12/03/08 | Lost | Mercer Island 29 | Ballard 56 | Non-league | 2.440 |
| 01/20/09 | Won | Mercer Island 66 | Mount Si 62 | League | 5.157 |
| 01/28/09 | Won | Mercer Island 50 | Jefferson 44 | Non-league | 2.524 |
| 12/02/09 | Lost | Mercer Island 51 | Issaquah 56 | Non-league | 7.565 |
| 01/12/10 | Lost | Mercer Island 63 | Sammamish 69 | League | 0.435 |
| 02/11/10 | Won | Mercer Island 67 | Mount Si 53 | League | 7.346 |
| 02/19/10 | Lost | Mercer Island 36 | Sammamish 53 | Playoff | 0.435 |
| 01/18/11 | Lost | Mercer Island 47 | Sammamish 52 | League | 7.134 |
| 02/10/11 | Won | Mercer Island 53 | Bellevue 48 | Playoff | 6.005 |
| 02/19/11 | Won | Mercer Island 50 | Rainier Beach 43 | Playoff | 6.567 |
| 12/06/11 | Lost | Mercer Island 69 | Sammamish 72 | League | 6.653 |
| 01/10/12 | Won | Mercer Island 58 | Lake Washington 48 | League | 3.164 |
| 01/14/12 | Lost | Mercer Island 40 | Bellevue 45 | League | 1.651 |
| 02/04/12 | Lost | Mercer Island 46 | Bellevue 58 | Playoff | 1.651 |
| 02/07/12 | Lost | Mercer Island 44 | Bellevue 46 | Playoff | 1.651 |
| 02/18/12 | Won | Mercer Island 63 | Franklin 61 | Playoff | 1.738 |
| 02/24/12 | Lost | Mercer Island 67 | Kennedy Catholic 73 | Playoff | 7.190 |
| 01/25/13 | Lost | Mercer Island 50 | Bellevue 51 | League | 5.776 |
| 02/23/13 | Lost | Mercer Island 55 | Timberline 56 | Playoff | 16.023 |
| 01/07/14 | Lost | Mercer Island 46 | Lake Washington 60 | League | 3.224 |
| 02/22/14 | Won | Mercer Island 48 | Seattle Prep 41 | Playoff | 3.134 |
| 12/05/14 | Lost | Mercer Island 47 | Bellarmine Prep 62 | Non-league | 4.207 |
| 12/06/14 | Lost | Mercer Island 54 | Newport (Bellevue) 55 | Non-league | 5.978 |
| 12/08/15 | Lost | Mercer Island 69 | Liberty (Issaquah) 72 | League | 14.199 |
| 01/08/16 | Lost | Mercer Island 63 | Lake Washington 64 | League | 8.516 |
| 12/10/16 | Lost | Mercer Island 54 | Eastlake 56 | Non-league | 12.085 |
| 01/06/17 | Lost | Mercer Island 60 | Lake Washington 61 | League | 7.208 |
| 01/13/17 | Won | Mercer Island 48 | Bellevue 36 | League | 3.759 |
| 01/31/17 | Lost | Mercer Island 42 | Lake Washington 48 | League | 7.208 |
| 02/11/17 | Lost | Mercer Island 37 | Ballard 41 | Playoff | 2.352 |
| 12/01/17 | Lost | Mercer Island 48 | Sammamish 52 | League | 17.335 |
| 01/05/18 | Lost | Mercer Island 57 | Lake Washington 59 | League | 3.691 |
| 02/02/18 | Lost | Mercer Island 49 | Juanita 64 | Playoff | 2.230 |
| 12/04/18 | Lost | Mercer Island 52 | Liberty (Issaquah) 60 | League | 6.530 |
| 12/07/18 | Won | Mercer Island 54 | Marysville-Pilchuck 50 | Non-league | 1.417 |
| 12/06/19 | Lost | Mercer Island 68 | Eastlake 69 | Non-league | 9.945 |