Old Reliable to Colborne Lodge to the lake. Lakeshore in a stiff headwind to Jarvis. Jarvis to Mount Pleasant. David A. Balfour Park to Mount Pleasant Cemetery with a mucky rise and fall. Beltline to the Allen - south to Cedarvale Park. Zigzag to Ossington/Davenport. South to Geary. Geary - Dovercourt - Hallam - Dufferin - Millicent - Emerson - Wallace - home.
I think if I continue along the Beltline past Dufferin south through Prospect Cemetery, then add a proper Old Reliable I have my own personal marathon route.