The last time these two teams faced each other, the Raiders were actually coming off a win and the Chargers were sitting at .500 (2-2). That time the Chargers were favored by five points at home over the Raiders. The Chargers won by 16 and since then the Raiders haven’t won and the Chargers haven’t lost. They come to Oakland as 10.5-point favorites according to Bovada courtesy of Oddshark.
The Chargers opened as 9.5-point favorites, but that has gone up throughout the week and now they are favored by double digits. The only teams they have beaten by double digits this season are the Bills (11), Raiders (16), and Browns (24). That sounds about right, then.