Defense Industries Limited Ajax Slo-Pitch Tournament

Softball was a popular sport among the thousands of women who worked at Defense Industries Limited– Ajax’s very first business, a shell filling plant that provided ammunition for British allies during World War II. This tournament celebrates this unique part of Ajax’s history, and important movement for women.

June 2-3, 2017

Audley Ballpark

Register now!




About the Town of Ajax


The Town of Ajax is located 12 km east of Toronto, conveniently accessible by Highway 401 and Highway 407.
The tournament will be held at Sportsplex Ballpark (2001 Audley Road South Ajax) and Millers Ballpark (275 Westney Rd N, Ajax, ON). For more detailed information, visit enter league number 3246.
Take a virtual tour of the Sportsplex Ballpark, where the softball events of the 2015 Pan American Games were held!
Hotel Information
Hilton Garden Inn Ajax
500 Beck Crescent
Ajax, ON L1Z 1C9
Phone: (905) 686-9400
Hilton Homewood Suites Ajax
600 Beck Crescent
Ajax, ON L1Z 1C9
Phone: (905) 686-5969
Super 8 Ajax
210 Westney Rd. S.
Ajax, ON L1S 7P9
Phone: (905) 428-6884
More information
Download the Ajax Restaurant Guide
Download the Ajax Tourism Magazine

History of Defense Industries Limited

Just imagine. The year is 1941 and the world is at war. If you’re a young woman, you might be leaving your home and loved ones to work at Defence Industries Limited (DIL), the largest munitions factory in the British Commonwealth, located in farm fields east of Toronto. While you will miss your friends and family at home, you also know that you, along with thousands of other women, will be making an impact, helping the men on the front lines in their battle for victory.

DIL was a shell filling plant that provided ammunition for British allies during World War II. At peak production, it spanned 2,985 acres, employed more than 9,000 people, had its own water and sewage treatment plants, a school population of over 600, and 30 miles of railroad and 30 miles of roads. This enormous burgeoning war plant community eventually became known as Ajax, named after the British Warship HMS Ajax.

The women of DIL worked with dangerous explosives, filling shells eight hours a day, for just 50 cents per hour.  When they weren’t working, they were involved in various social activities, one of the most popular being the sport of softball.

DIL was an institution that helped change the perceptions of women in society and forever shaped the lives of the individuals that worked there. The women of DIL were part of the inspiration for the hit series Bomb Girls, which ran on the Global Television Network in 2012 and 2013.

The Defence Industries Limited Ajax Slo-Pitch Invitational celebrates this important part of Ajax history, and movement for women.