Underdog organizes its leagues around the four calendar seasons each year: Winter, Spring, Summer, and Fall. With staggered start dates during each, seasons overlap by a number of weeks across leagues.
Registration for leagues open several weeks in advance of each season, as noted below. While Underdog registration is strictly first come, first serve (we do not hold spots for returning teams), teams that have played in a previous league can register one week "early" after logging into their Player's Page.
To be reminded of registration dates and receive other information, click here and enter your email in the bottom left corner.
To sign up for a league that is currently open, click here.
Summer I Fall I Winter | Spring
Start dates are subject to change, and leagues may be added or changed.
LEAGUES OPEN April 7th to Returning Captains/Indys and April 14th to Everyone
Jump to a sport: Softball I Kickball I Football I Volleyball I Dodgeball I Bocce
Northacres Sundays: early June
Queen Anne Sundays: early June
Greenlake Sundays: early June
Paramount Sundays: mid June
Soundview/Lower Woodlands Sundays: mid June
Greenlake Saturdays: early June
Dahl Mondays/Wednesdays: early June
Dahl Tuesdays/Thursdays: early June
Queen Anne Tuesdays/Thursdays: early June
Maplewood Thursdays: early June
Lower Woodlands Fridays: early June
Ballard Sundays: early June
Ballard Boys & Girls Club Sundays: mid June
Eastside (132nd Square Park) Sundays: mid June
Denny Park Tuesdays/Thursdays: late June
Downtown (Cascade Park) Mondays/Wednesdays: late June
Downtown (Cascade Park) Tuesdays/Thursdays: late June
U-District Mondays/Wednesdays: early June
U-District Tuesdays/Thursdays: early June
Eastlake Mondays/Wednesdays: early June
Ballard Boys & Girls Club Mondays/Wednesdays: mid June
Ballard Boys & Girls Club Tuesdays/Thursdays: mid June
West Seattle (Fairmont Park): late June
Fremont Tuesdays/Thursdays: early June
Ravenna Mondays/Wednesdays: late June
Ravenna Tuesdays/Thursdays: late June
Everett Thursdays: early July
Red Rubber Showdown (Tournament): end July
Loyal Heights Mondays Co-ed: mid June
Juanita High School Tuesdays Co-ed & Mens: early July
Seattle Center Sundays Co-ed & Mens: late June
Alki Beach Mondays: late June
Alki Beach Wednesdays: late June
Golden Gardens Beach Mondays: late June
Golden Gardens Beach Tuesdays: late June
Golden Gardens Beach Thursdays: late June
Wallingford Boys & Girls Club Thursdays: early July
Greenlake Wednesdays: May, June, and August
Greenlake Thursdays: May, June and August
LEAGUES OPEN June 16th to Returning Captains/Indys and June 23rd to Everyone
Jump to a sport: Softball I Kickball I Football I Volleyball I Dodgeball I Bowling
Queen Anne Sundays: early August
Lower Woodlands Sundays: late August
Lower Woodlands Mondays: late July
Lower Woodlands Wednesdays: late July
Lower Woodlands Tuesdays/Thursdays: late July
Hamlin Saturdays: early September
Dahl Mondays/Wednesdays: early August
Ballard Boys & Girls Club Sundays: early September
Lower Woodlands Sundays: early August
Lower Woodlands Mondays: early August
Lower Woodlands Tuesdays: early August
Lower Woodlands Wednesdays: early August
Lower Woodlands Thursdays: early August
Seattle Center Sundays Co-ed & Mens: mid September
Seattle Center Saturdays Co-ed & Mens: mid September
Seattle Center Mondays Co-ed & Mens: late November
Seattle Center Tuesdays Co-ed & Mens: late November
Juanita High School Sundays Co-ed & Mens: late September
Juanita High School Tuesdays Co-ed & Mens: Early Fall in early September, Late Fall in mid November
Ballard Tuesdays Co-ed: early September
Ballard Thursdays Co-ed & Mens: early September
Needlebowl (Tournament): early December
Seattle Central Tuesdays: Early Fall in early September, Late Fall in late October
Seattle Central Thursdays: Early Fall in early September, Late Fall in late October
First Baptist Mondays: early October
First Baptist Tuesdays: early October
First Baptist Wednesdays: early October
First Baptist Thursdays: early October
Wallingford Boys & Girls Club Wednesdays: Early Fall in early September, Late Fall in late October
Wallingford Boys & Girls Club Thursdays: Early Fall in early September, Late Fall in late October
SkyMania Trampoline Dodgeball (Kirkland): mid October
Garage Sundays: mid September
Garage Mondays: mid September
Imperial Mondays: mid October
Imperial Tuesdays: Early Fall in mid September, Late Fall in mid November
Imperial Wednesdays: Early Fall in mid September, Late Fall in mid November
LEAGUES OPEN November 3rd to Returning Captains/Indys and November 10th to Everyone
Jump to a sport: Kickball I Football I Volleyball I Dodgeball I Bowling I Cornhole | Softball
Ballard Saturdays: early January
Seattle Center Sundays Co-ed & Mens: early January
Seattle Center Saturdays Co-ed & Mens: early January
Juanita High School Sundays Co-ed & Mens: mid January
Juanita High School Tuesdays Co-ed & Mens: mid January
Seattle Center Tuesdays Co-ed & Mens: late January
Nathan Hale Wednesdays Co-ed & Mens: late January
Seattle Central Tuesdays: early January
Seattle Central Thursdays: early January
First Baptist Mondays: mid January
First Baptist Tuesdays: mid January
First Baptist Wednesdays: early January
First Baptist Thursdays: late January
Seattle Central Fridays: early February
Wallingford Boys & Girls Club Wednesdays: early January
Wallingford Boys & Girls Club Thursdays: early January
SkyMania Trampoline Dodgeball in Kirkland: late January
Imperial Tuesdays: mid January
Imperial Wednedays: mid January
Tech City Wednesdays: early February
Garage Mondays: mid February
Garage Sundays: mid February
South Lake Union Wednesdays: mid January
Stadium District Thursdays: early February
Capitol Hill Sundays: early February
LEAGUES OPEN February 10th to Returning Captains/Indys and February 17th to Everyone
Jump to a sport: Softball I Kickball I Football I Volleyball I Dodgeball I Bowling
Northacres Sundays: mid March
Magnolia/Queen Anne Sundays: mid March
Greenlake Sundays: mid March
Bobby Morris Saturdays: early April
Bobby Morris Mondays/Wednesdays: Early & Late Spring: mid March
Bobby Morris Tuesdays/Thursdays: Early & Late Spring: mid March
Paramount Sundays: early April
Ballard Playfield Sundays: mid March
Ballard Boys & Girls Club Sundays: early April
U-District Mondays/Wednesdays: early April
U-District Tuesdays/Thursdays: early April
Downtown Mondays/Wednesdays: late April
Downtown Tuesdays/Thursdays: late April
Denny Tuesdays/Thursdays: late April
Queen Anne Tuesdays/Thursdays: early April
Lower Woodlands Mondays: early April
Lower Woodlands Tuesdays: early April
Lower Woodlands Wednesdays: early April
Lower Woodlands Thursdays: early April
Everett Thursdays: early May
Juanita High School Sundays Co-ed & Mens: early April
Juanita High School Tuesdays Co-ed & Mens: early April
Seattle Center Saturdays Co-ed & Mens: late March
Seattle Center Sundays Co-ed & Mens: late March
Seattle Center Thursdays Co-ed & Mens: mid April
Seattle Central Tuesdays: mid-March
Seattle Central Thursdays: mid-March
First Baptist Wednesdays: late March
First Baptist Thursdays: late March
Loyal Heights Tuesdays: late March
Alki Beach Mondays: early May
Alki Beach Wednesdays: early May
Golden Gardens Beach Mondays: early May
Golden Gardens Beach Tuesdays: early May
Golden Gardens Beach Thursdays: early May
Wallingford Boys & Girls Club Wednesdays: early March
Wallingford Boys & Girls Club Thursdays: early March
Imperial Mondays: late March
Imperial Tuesdays: late March
Imperial Wednedays: late March
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