2-3-1, but add 2 more wins if I include preseason. 3 of the below games don't involve the Leafs.
1. March 13th, 2003, Rangers vs. Senators: 3-2 Sens (OT)
2. March 17th, 2007, Leafs vs. Habs: 3-2 Habs (Shootout)
3. November 17th, 2009, Leafs vs. Sens: 3-2 Sens
4. March 16th, 2010, Leafs vs. Sens; 4-1 Leafs
5. September 29th, 2010, Leafs vs. Sens: 4-3 Leafs, PRESEASON
6. April 24th, 2010, Penguins vs. Sens: 4-3 Penguins, PLAYOFFS (OT, Game 6 series clinch)
7. November 27th, 2010, Leafs vs. Sens; 3-0 Sens
8. April 2nd, 2011, Leafs vs. Sens: 4-2 Leafs
9. September 27th, 2011, Leafs vs. Sens: 5-3 Leafs, PRESEASON
10. March 2nd, 2012, Blackhawks vs. Sens: 2-1 Blackhawks
11. February 23rd, 2013, Leafs vs. Sens: 3-2 Sens