I think you have a walleye. I would need to see the spiny dorsal fin to be sure. I fished for saugeye in Ohio for many years and caught over 400 the winter of 1991-92. They usually have the markings of both the walleye and sauger. Here is a link to Ohio saugeye identification. The Ohio record was broken not long ago in a small trout filled lake in Columbus, Ohio. I think it was 14+ lbs. Congrats. on a fine catch.
http://www.ohiodnr.com/Portals/9/pdf/pub358.pdf