| League | Season | ||||||
| Won | Lost | Pct | Won | Lost | Pct | ||
| Kennedy | 17 | 1 | 0.944 | 24 | 4 | 0.857 | State 7th |
| Hazen | 13 | 5 | 0.722 | 18 | 9 | 0.667 | State |
| Lindbergh | 12 | 6 | 0.667 | 14 | 9 | 0.609 | |
| Evergreen (Highline) | 11 | 7 | 0.611 | 13 | 10 | 0.565 | |
| Mount Si | 11 | 7 | 0.611 | 13 | 10 | 0.565 | |
| Tyee | 7 | 11 | 0.389 | 8 | 13 | 0.381 | |
| Highline | 7 | 11 | 0.389 | 7 | 14 | 0.333 | |
| Mount Rainier | 5 | 13 | 0.278 | 5 | 14 | 0.263 | |
| Liberty (Issaquah) | 4 | 14 | 0.222 | 5 | 14 | 0.263 | |
| Renton | 3 | 15 | 0.167 | 3 | 16 | 0.158 | |
Last Season: 1989-1990 Seamount
Next Season: 1991-1992 Seamount
1990-1991 boys Seamount | Main Page | 1990-1991 TOC
For league: 5 - 7 in non-league games
Home team wins 61.1% of league games (55 - 35)
119 games; average margin: 16.77
median margin: 14
23 games five points or less margin (including overtime games)
44 games ten points or less margin (including overtime games)
82 league games; average margin: 18.32
median margin: 15.5
14 games five points or less margin (including overtime games)
25 games ten points or less margin (including overtime games)
| 11/27/90 | Fife 55, Mount Rainier 42 | Non-league |
| 11/27/90 | Franklin Pierce 46, Highline 26 | Non-league |
| 11/27/90 | Lindbergh 50, Eastside Catholic 48 | Non-league |
| 11/29/90 | Hazen 86, Issaquah 30 | Non-league |
| 11/29/90 | Spanaway Lake 64, Lindbergh 53 | Non-league |
| 11/30/90 | at Mount Si 37, Chief Sealth 35 | Non-league |
| 11/30/90 | Enumclaw 85, Renton 29 | Non-league |
| 11/30/90 | Kennedy 47, Lake Stevens 38 | Non-league |
| 11/30/90 | Liberty (Issaquah) 46, at Tahoma 23 | Non-league |
| 11/30/90 | Tolt 30, Tyee 16 | Non-league |
| 12/04/90 | Evergreen (Highline) 47, at Liberty (Issaquah) 39 | |
| 12/04/90 | Hazen 77, at Mount Rainier 41 | |
| 12/04/90 | Lindbergh 40, at Renton 37 | |
| 12/04/90 | Mount Si 53, at Highline 38 | |
| 12/04/90 | at Kennedy 52, Tyee 25 | |
| 12/07/90 | at Lindbergh 63, Evergreen (Highline) 51 | |
| 12/07/90 | Kennedy 49, at Mount Si 24 | |
| 12/07/90 | at Hazen 88, Liberty (Issaquah) 36 | |
| 12/07/90 | at Highline 52, Mount Rainier 32 | |
| 12/07/90 | at Tyee 43, Renton 33 | |
| 12/11/90 | at Lindbergh 98, Hazen 83 | |
| 12/11/90 | Kennedy 53, at Renton 32 | |
| 12/11/90 | at Highline 43, Liberty (Issaquah) 20 | |
| 12/11/90 | at Mount Rainier 44, Mount Si 43 | |
| 12/11/90 | at Evergreen (Highline) 48, Tyee 39 | |
| 12/14/90 | at Kennedy 54, Evergreen (Highline) 37 | |
| 12/14/90 | Hazen 62, at Tyee 42 | |
| 12/14/90 | at Mount Rainier 50, Liberty (Issaquah) 33 | |
| 12/14/90 | at Highline 42, Lindbergh 30 | |
| 12/14/90 | at Mount Si 51, Renton 28 | |
| 12/18/90 | Highline defeated at Tyee | |
| 12/18/90 | at Lindbergh defeated Mount Rainier | |
| 12/18/90 | at Evergreen (Highline) 38, Renton 33 | |
| 01/02/91 | Garfield 73, Hazen 69 | Non-league |
| 01/04/91 | at Hazen 62, Evergreen (Highline) 42 | |
| 01/04/91 | at Tyee 37, Liberty (Issaquah) 33 | |
| 01/04/91 | at Kennedy 44, Mount Rainier 21 | |
| 01/04/91 | Mount Si defeated at Lindbergh | |
| 01/04/91 | at Highline 35, Renton 21 | |
| 01/05/91 | Kennedy 58, at Hazen 50 | |
| 01/07/91 | Hazen 67, at Renton 25 | |
| 01/07/91 | at Kennedy 60, Highline 26 | |
| 01/07/91 | at Mount Rainier 52, Tyee 37 | |
| 01/08/91 | Hazen 64, at Mount Si 31 | |
| 01/08/91 | at Evergreen (Highline) 43, Highline 31 | |
| 01/08/91 | Kennedy 52, at Liberty (Issaquah) 37 | |
| 01/08/91 | at Renton 40, Mount Rainier 29 | |
| 01/08/91 | at Lindbergh 50, Tyee 37 | |
| 01/11/91 | at Mount Rainier 57, Evergreen (Highline) 55 | |
| 01/11/91 | Hazen 70, at Highline 49 | |
| 01/11/91 | Liberty (Issaquah) 45, at Renton 42 | |
| 01/11/91 | at Kennedy 58, Lindbergh 50 | |
| 01/11/91 | at Tyee 32, Mount Si 29 | |
| 01/12/91 | Mount Si 46, at Evergreen (Highline) 38 | |
| 01/14/91 | Lindbergh 53, at Liberty (Issaquah) 37 | |
| 01/15/91 | at Mount Si 49, Highline 34 | |
| 01/15/91 | Kennedy 48, at Tyee 31 | |
| 01/15/91 | at Evergreen (Highline) 55, Liberty (Issaquah) 28 | |
| 01/15/91 | at Hazen 80, Mount Rainier 40 | |
| 01/15/91 | at Lindbergh 60, Renton 30 | |
| 01/18/91 | Hazen 66, at Liberty (Issaquah) 26 | |
| 01/18/91 | at Mount Rainier 47, Highline 41 | |
| 01/18/91 | at Evergreen (Highline) 60, Lindbergh 36 | |
| 01/18/91 | at Kennedy 55, Mount Si 25 | |
| 01/18/91 | at Renton defeated Tyee | |
| 01/19/91 | Evergreen (Highline) 47, at Tyee 34 | |
| 01/19/91 | at Liberty (Issaquah) defeated Highline | |
| 01/19/91 | at Hazen 100, Lindbergh 77 | |
| 01/19/91 | at Mount Si 46, Mount Rainier 34 | |
| 01/19/91 | at Kennedy 55, Renton 28 | |
| 01/22/91 | at Lindbergh 69, Highline 38 | |
| 01/22/91 | Kennedy 50, at Evergreen (Highline) 34 | |
| 01/22/91 | at Liberty (Issaquah) 38, Mount Rainier 35 | |
| 01/22/91 | Mount Si 51, at Renton 42 | |
| 01/22/91 | at Hazen 86, Tyee 41 | |
| 01/25/91 | Evergreen (Highline) defeated at Renton | |
| 01/25/91 | at Kennedy 74, Hazen 73 | |
| 01/25/91 | at Mount Si 48, Liberty (Issaquah) 25 | |
| 01/25/91 | Lindbergh 51, at Mount Rainier 28 | |
| 01/25/91 | Tyee 49, at Highline 41 | |
| 01/29/91 | Evergreen (Highline) 68, at Mount Si 45 | |
| 01/29/91 | Kennedy 57, at Highline 30 | |
| 01/29/91 | at Lindbergh 67, Liberty (Issaquah) 19 | |
| 01/29/91 | at Tyee 59, Mount Rainier 46 | |
| 01/29/91 | at Hazen 78, Renton 18 | |
| 01/31/91 | Tyee 38, at Liberty (Issaquah) 21 | |
| 02/01/91 | at Evergreen (Highline) 59, Hazen 52 | |
| 02/01/91 | Highline defeated at Renton | |
| 02/01/91 | Kennedy 59, at Mount Rainier 31 | |
| 02/01/91 | at Mount Si 36, Lindbergh 34 | |
| 02/02/91 | at Foster 59, Highline 28 | Non-league |
| 02/02/91 | Mount Si defeated at Liberty (Issaquah) | |
| 02/05/91 | at Highline 52, Evergreen (Highline) 51 | |
| 02/05/91 | at Kennedy 67, Liberty (Issaquah) 34 | |
| 02/05/91 | Lindbergh 50, at Tyee 34 | |
| 02/05/91 | Mount Si 51, at Hazen 50 | |
| 02/05/91 | Renton 31, at Mount Rainier 28 | |
| 02/08/91 | at Hazen 79, Highline 26 | |
| 02/08/91 | at Lindbergh 54, Kennedy 42 | |
| 02/08/91 | at Evergreen (Highline) 50, Mount Rainier 39 | |
| 02/08/91 | at Liberty (Issaquah) 39, Renton 37 | |
| 02/08/91 | Tyee 34, at Mount Si 28 | |
| 02/11/91 | Evergreen (Highline) 53, Mount Si 44 | Seamount tiebreaker (4th/5th) |
| 02/11/91 | at Tyee 41, Highline 35 | Seamount tiebreaker (6th/loser out) |
| 02/14/91 | Lindbergh 40, Evergreen (Highline) 38 | Seamount Tournament (winner 3rd) |
| 02/14/91 | Mount Si 43, Tyee 24 | Seamount Tournament (loser out) |
| 02/15/91 | Evergreen (Highline) 59, Mount Si 42 | Seamount Tournament (4th/loser out) |
| 02/15/91 | Kennedy 64, Hazen 58 | Seamount Tournament (1st/2nd) |
| 02/19/91 | Chief Sealth 58, Mount Si 51 | D2 AA Tournament (loser out) |
| 02/21/91 | Kennedy 57, Chief Sealth 53 | D2 AA Tournament |
| 02/21/91 | Rainier Beach 75, Lindbergh 56 | D2 AA Tournament |
| 02/22/91 | Lakeside (Seattle) 69, Evergreen (Highline) 54 | D2 AA Tournament |
| 02/22/91 | Hazen 72, Seattle Prep 60 | D2 AA Tournament |
| 02/23/91 | Chief Sealth 51, Lindbergh 41 | D2 AA Tournament (loser out) |
| 02/23/91 | Hazen 62, Lakeside (Seattle) 59 | D2 AA Tournament (winner to state) |
| 02/23/91 | Rainier Beach 58, Kennedy 54 | D2 AA Tournament (winner to state) |
| 02/23/91 | Seattle Prep 62, Evergreen (Highline) 53 | D2 AA Tournament (loser out) |
| 02/27/91 | Kennedy 56, Seattle Prep 36 | D2 AA Tournament (winner to state) |
| 03/01/91 | Kennedy 56, Chief Sealth 49 | D2 AA Tournament (3rd/4th) |
| 03/02/91 | Hazen 69, Rainier Beach 60 | D2 AA Tournament (1st/2nd) |
| 03/06/91 | Hazen 74, Gig Harbor 64 | State AA Tournament |
| 03/06/91 | Kennedy 68, Sehome 48 | State AA Tournament |
| 03/07/91 | Edmonds-Woodway 57, Hazen 45 | State AA Tournament |
| 03/07/91 | Sunnyside 50, Kennedy 35 | State AA Tournament |
| 03/08/91 | Enumclaw 65, Hazen 60 | State AA Tournament (loser out) |
| 03/08/91 | Kennedy 57, Rainier Beach 46 | State AA Tournament (loser out) |
| 03/09/91 | Enumclaw 48, Kennedy 46 OT | State AA Tournament (4th/7th) |