Kawa broke for 2-0 and again for 5-3, then survived a late rally as Bencic broke for 4-5 before Kawa sealed it 7-5 with a final break, saving one break point in a hold for 6-5.
Kawa broke for 3-1 and again for 6-2, clinical in the second set, with Bencic's resistance a 5 minute hold for 2-4 saving all three break points.