The first Yak-9 entered service in October 1942 and first saw combat in late 1942 during the Battle of Stalingrad. The versatile Yak-9 operated with a wide variety of armament for use in anti-tank, light bomber and long-range escort role. At low altitude in which it operated predominately, the Yak-9 was faster and more maneuverable than its main foe, the Bf 109, but was far less well-armed. A series of continual improvements in performance and armament did not hamper the superb handling characteristics that allowed its pilots to excel at dog-fighting. Soviet pilots regarded the Yak-9's performance as on the same level as the Bf 109G and Fw 190A-3/A-4." *
* Wikipedia