Major Series Lacrosse

Major Series Lacrosse

Major Series Lacrosse
Sport	Box lacrosse
Founded	1887
No. of teams	6
Country	Canada
Most recent champion(s)	Peterborough Lakers
Official website	MSL

Major Series Lacrosse (MSL) is a Senior A box lacrosse league based in Ontario, Canada sanctioned by the Ontario Lacrosse Association. Most of the players in the league play or have played in the National Lacrosse League. Each year, the playoff teams battle for the right to compete against the Western Lacrosse Association champion for the Mann Cup every September. The championship is hosted alternately between Ontario and British Columbia every year.

Major Series Lacrosse originated in the late 19th century as the Canadian Lacrosse Association. In its early days, it had competition from the semi-professional National Lacrosse Union that ran from around 1880 until around 1920 with teams in the Toronto, Ottawa, and Montreal markets. In the early 20th century the CLA had another rival league, the Dominion Lacrosse Association in much of the same markets as the NLU. In these early days, all lacrosse was field lacrosse. Early powerhouses in the league were the Orangeville Dufferins (1890s) and the St. Catharines Athletics (1900s and 1910s).

In 1913, the CLA became the Ontario Amateur Lacrosse Association. The league had a Western Division with teams in Toronto and the Golden Horseshoe and an Eastern Division with teams in the Ottawa District, but a year later the Ottawa teams left the league. In 1920, the NLU had dropped to 3 teams and elected to disband. The OALA was left as the only Senior A league in Ontario and only had to face the Ontario Intermediate A champion for a berth into the Mann Cup National Senior championships.

In 1926, an OALA team won its first Mann Cup. Until this point, the Mann Cup was a challenge trophy, mostly dominated by British Columbia's New Westminster Salmonbellies, in 1926 the entire country could compete for the trophy in a playdown style. As standings leaders of the OALA at midpoint, the Weston Westonmen were awarded the right to represent the OALA for the Mann Cup. The Westonmen were met by the Winnipeg Tigers, whom they defeated 11-3 to become the first Mann Cup champion of the playdown era. The Westonmen were then forced to face the Brampton Excelsiors in the Ontario final who beat them 10-goals-to-6 in a two game series. The Westonmen would dominate the Ontario scene in the 1920s with 5 league titles and the 1926 Mann Cup. In 1931, the Excelsiors defeated the Toronto Native Sons 2-games-to-1 to win the OALA championship. The Excelsiors would go on to defeat New Westminster in the Mann Cup final 2-games-to-1. This marked the end of Field Lacrosse for this league and the last Mann Cup to ever be conducted on a field.