I don't have League Pass, but I looked into the option last season. It turns out they black out the local team's game based on your IP geolocation. Aside from

I don't have League Pass, but I looked into the option last season. It turns out they black out the local team's game based on your IP geolocation. Aside from that annoying limitation, the general consensus on the Internet is that the paid pirate services can be much cheaper and have better quality streams than League pass.