WoodbineEntertainment.com lists results for all harness races that took place there, as of 2015. In addition to detailing the results for the most recent races, the website offers results for the previous three months.
From the main page, click on or hover over the Racing tab at the top of the screen, then click on Results, which appears in the blue bar just below the main tabs. Select the location, date, and race number of the race that you are interested in. The results appear below, including the first, second, and third place winners, the betting odds, and information on the horses under the Program tab.