Division I (Mountain)
| League | Season | ||||||
| Won | Lost | Pct | Won | Lost | Pct | ||
| Rainier Beach | 11 | 2 | 0.846 | 19 | 8 | 0.704 | State |
| Seattle Prep | 9 | 4 | 0.692 | 14 | 10 | 0.583 | |
| Nathan Hale | 4 | 9 | 0.308 | 6 | 14 | 0.300 | |
| Holy Names | 4 | 9 | 0.308 | 5 | 15 | 0.250 | |
| West Seattle | 2 | 11 | 0.154 | 3 | 15 | 0.167 | |
Division II (Sound)
| League | Season | ||||||
| Won | Lost | Pct | Won | Lost | Pct | ||
| Lakeside (Seattle) | 12 | 1 | 0.923 | 18 | 8 | 0.692 | State |
| Chief Sealth | 11 | 2 | 0.846 | 16 | 13 | 0.552 | State |
| Eastside Catholic | 7 | 6 | 0.538 | 9 | 11 | 0.450 | |
| Ballard | 3 | 10 | 0.231 | 4 | 14 | 0.222 | |
| Cleveland | 2 | 11 | 0.154 | 5 | 11 | 0.312 | |
Last Season: 1989-1990 Metro AA
Next Season: 1991-1992 Metro
1990-1991 boys Metro AA | Main Page | 1990-1991 TOC
For league: 17 - 28 in non-league games
Home team wins 58.5% of league games (38 - 27)
129 games; average margin: 18.81
median margin: 14
29 games five points or less margin (including overtime games)
54 games ten points or less margin (including overtime games)
62 league games; average margin: 24.74
median margin: 19
11 games five points or less margin (including overtime games)
22 games ten points or less margin (including overtime games)
| 11/27/90 | Everett 48, Chief Sealth 39 | Non-league |
| 11/27/90 | Lindbergh 50, Eastside Catholic 48 | Non-league |
| 11/28/90 | at Blanchet 46, Seattle Prep 41 | Non-league |
| 11/28/90 | at Shorewood 55, Lakeside (Seattle) 39 | Non-league |
| 11/30/90 | at Lakeside (Seattle) 45, Bainbridge 37 | Non-league |
| 11/30/90 | at Roosevelt 62, Ballard 41 | Non-league |
| 11/30/90 | at Mount Si 37, Chief Sealth 35 | Non-league |
| 11/30/90 | Granite Falls 46, Nathan Hale 25 | Non-league |
| 11/30/90 | at Seattle Prep 47, Interlake 43 OT | Non-league |
| 11/30/90 | Meadowdale 64, at Eastside Catholic 51 | Non-league |
| 12/01/90 | at Lakeside (Seattle) 46, Mountlake Terrace 18 | Non-league |
| 12/03/90 | Mountlake Terrace 73, at Ballard 30 | Non-league |
| 12/04/90 | Bellevue 63, Chief Sealth 48 | Non-league |
| 12/04/90 | at Eastside Catholic 51, Interlake 49 | Non-league |
| 12/04/90 | Redmond 60, Lakeside (Seattle) 36 | Non-league |
| 12/05/90 | Cleveland 57, Ingraham 35 | Non-league |
| 12/05/90 | Kent-Meridian 61, West Seattle 23 | Non-league |
| 12/06/90 | Mountlake Terrace 58, at Eastside Catholic 43 | Non-league |
| 12/06/90 | Rainier Beach 102, Belmont (BC) 91 | Non-league |
| 12/07/90 | Ballard 41, at Marysville Pilchuck 39 | Non-league |
| 12/07/90 | Edmonds-Woodway 54, Lakeside (Seattle) 38 | Non-league |
| 12/07/90 | Meadowdale 42, at Seattle Prep 40 | Non-league |
| 12/07/90 | Rainier Beach 62, Mount Talbot (Canada) 46 | Non-league |
| 12/08/90 | Rainier Beach 78, Sax Prep (Canada) 52 | Non-league |
| 12/08/90 | Roosevelt 56, Ballard 36 | Non-league |
| 12/12/90 | at Rainier Beach 93, Ballard 46 | |
| 12/12/90 | at Lakeside (Seattle) 62, Chief Sealth 35 | |
| 12/12/90 | at Eastside Catholic 51, Cleveland 49 | |
| 12/12/90 | at Seattle Prep 53, Nathan Hale 30 | |
| 12/12/90 | at Holy Names 49, West Seattle 36 | |
| 12/14/90 | Chief Sealth 62, at West Seattle 32 | |
| 12/14/90 | Eastside Catholic 74, at Ballard 49 | |
| 12/14/90 | at Nathan Hale 42, Holy Names 32 | |
| 12/14/90 | Lakeside (Seattle) 76, at Cleveland 38 | |
| 12/14/90 | at Rainier Beach 52, Seattle Prep 51 | |
| 12/15/90 | Lakeside (Seattle) 50, Lincoln 33 | Non-league |
| 12/15/90 | Mariner 58, Seattle Prep 39 | Non-league |
| 12/27/90 | Holy Names defeated Forest Ridge | Non-league |
| 12/27/90 | Meadowdale 75, Ballard 40 | Non-league |
| 12/27/90 | Mercer Island 55, at Rainier Beach 45 | Non-league |
| 12/27/90 | Mountlake Terrace 55, Nathan Hale 41 | Non-league |
| 12/27/90 | Sammamish 48, Chief Sealth 43 | Non-league |
| 12/28/90 | at Rainier Beach 62, Chief Sealth 55 | Non-league |
| 12/28/90 | at King's 67, Holy Names 31 | Non-league |
| 12/29/90 | Chief Sealth 57, Garfield 54 | Non-league |
| 12/29/90 | Redmond 87, at Rainier Beach 48 | Non-league |
| 12/31/90 | at Rainier Beach 63, Chief Sealth 59 | Non-league |
| 01/03/91 | Eastside Catholic 48, at Interlake 40 | Non-league |
| 01/04/91 | at Rainier Beach defeated Holy Names | |
| 01/04/91 | Nathan Hale 43, West Seattle 40 | Non-league |
| 01/04/91 | at Eastside Catholic 44, Seattle Prep 39 | |
| 01/05/91 | at Ingraham 53, Nathan Hale 50 | Non-league |
| 01/05/91 | West Seattle 52, Port Alberni (BC) 37 | Non-league |
| 01/09/91 | Chief Sealth 78, at Ballard 20 | |
| 01/09/91 | at Nathan Hale 52, Cleveland 37 | |
| 01/09/91 | at Seattle Prep 67, Holy Names 21 | |
| 01/09/91 | Lakeside (Seattle) 63, at Eastside Catholic 49 | |
| 01/09/91 | Rainier Beach 101, at West Seattle 41 | |
| 01/11/91 | at Cleveland 46, Ballard 43 OT | |
| 01/11/91 | at Chief Sealth 55, Eastside Catholic 45 | |
| 01/11/91 | at Lakeside (Seattle) 79, Holy Names 17 | |
| 01/11/91 | Rainier Beach 69, at Nathan Hale 41 | |
| 01/11/91 | Seattle Prep 72, at West Seattle 15 | |
| 01/12/91 | at Chief Sealth 60, Cleveland 26 | |
| 01/14/91 | at Lakeside (Seattle) 74, Ballard 24 | |
| 01/14/91 | at Lynnwood 62, Eastside Catholic 55 | Non-league |
| 01/16/91 | at Seattle Prep 71, Ballard 29 | |
| 01/16/91 | Eastside Catholic defeated at Holy Names | |
| 01/16/91 | at Chief Sealth 74, Nathan Hale 31 | |
| 01/16/91 | Rainier Beach 71, at Cleveland 44 | |
| 01/16/91 | at Lakeside (Seattle) 65, West Seattle 36 | |
| 01/18/91 | Chief Sealth 73, at Rainier Beach 63 | |
| 01/18/91 | at Seattle Prep 51, Cleveland 32 | |
| 01/18/91 | Holy Names 48, at Ballard 44 | |
| 01/18/91 | Lakeside (Seattle) 55, at Nathan Hale 45 | |
| 01/18/91 | at Eastside Catholic 67, West Seattle 26 | |
| 01/19/91 | Nathan Hale 46, at West Seattle 43 | |
| 01/22/91 | at Lakeside (Seattle) 59, Rainier Beach 41 | |
| 01/23/91 | Ballard 44, at West Seattle 38 | |
| 01/23/91 | at Holy Names 46, Cleveland 43 | |
| 01/23/91 | at Eastside Catholic 54, Nathan Hale 45 | |
| 01/23/91 | at Chief Sealth 41, Seattle Prep 29 | |
| 01/25/91 | Chief Sealth 64, at Cleveland 32 | |
| 01/25/91 | at Rainier Beach 69, Eastside Catholic 35 | |
| 01/25/91 | at West Seattle 44, Holy Names 34 | |
| 01/25/91 | Lakeside (Seattle) 75, at Ballard 28 | |
| 01/25/91 | Seattle Prep 67, at Nathan Hale 34 | |
| 01/30/91 | Ballard 54, at Eastside Catholic 48 | |
| 01/30/91 | at Lakeside (Seattle) 50, Cleveland 18 | |
| 01/30/91 | at Chief Sealth 100, Holy Names 19 | |
| 01/30/91 | at Rainier Beach 77, Nathan Hale 38 | |
| 01/30/91 | at Seattle Prep 74, West Seattle 35 | |
| 02/01/91 | Eastside Catholic 51, at Cleveland 47 | |
| 02/01/91 | Lakeside (Seattle) 63, at Chief Sealth 48 | |
| 02/01/91 | Nathan Hale 49, at Ballard 47 | |
| 02/01/91 | Seattle Prep defeated at Holy Names | |
| 02/01/91 | at Rainier Beach 91, West Seattle 47 | |
| 02/06/91 | Chief Sealth 65, at Eastside Catholic 39 | |
| 02/06/91 | at Ballard 49, Cleveland 40 | |
| 02/06/91 | at Seattle Prep 44, Lakeside (Seattle) 32 | |
| 02/06/91 | Rainier Beach 100, at Holy Names 27 | |
| 02/06/91 | West Seattle 61, at Nathan Hale 52 | |
| 02/08/91 | at Chief Sealth 69, Ballard 50 | |
| 02/08/91 | at Lakeside (Seattle) 55, Eastside Catholic 37 | |
| 02/08/91 | at Holy Names 41, Nathan Hale 37 | |
| 02/08/91 | Rainier Beach 52, at Seattle Prep 47 | |
| 02/08/91 | at Cleveland 48, West Seattle 41 | |
| 02/11/91 | at Nathan Hale 40, Holy Names 34 | Metro divisional tiebreaker (3rd/loser out) |
| 02/13/91 | at Seattle Prep 52, Eastside Catholic 40 | Metro AA Tournament |
| 02/13/91 | at Chief Sealth 52, Nathan Hale 44 | Metro AA Tournament |
| 02/16/91 | Seattle Prep 49, Chief Sealth 42 | Metro AA Tournament (3rd/4th) |
| 02/19/91 | Chief Sealth 58, Mount Si 51 | D2 AA Tournament (loser out) |
| 02/19/91 | Lakeside (Seattle) 69, Rainier Beach 49 | Metro AA Tournament (1st/2nd) |
| 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) |
| 02/26/91 | Chief Sealth 44, Lakeside (Seattle) 42 | D2 AA Tournament (winner to state) |
| 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) |
| 03/01/91 | Lakeside (Seattle) 54, Seattle Prep 32 | D2 AA Tournament (winner 5th to state/loser out) |
| 03/02/91 | Hazen 69, Rainier Beach 60 | D2 AA Tournament (1st/2nd) |
| 03/06/91 | Enumclaw 46, Chief Sealth 45 | State AA Tournament |
| 03/06/91 | Rainier Beach 61, R.A. Long 58 | State AA Tournament |
| 03/06/91 | Sunnyside 59, Lakeside (Seattle) 39 | State AA Tournament |
| 03/07/91 | Anacortes 66, Chief Sealth 45 | State AA Tournament (loser out) |
| 03/07/91 | Battle Ground 60, Rainier Beach 49 | State AA Tournament |
| 03/07/91 | Sehome 67, Lakeside (Seattle) 44 | State AA Tournament (loser out) |
| 03/08/91 | Kennedy 57, Rainier Beach 46 | State AA Tournament (loser out) |