Question on quick turn MR
 

I am not sure if this goes on this forum so mod please move.

I am doing my first mileage run on CO in 2 weeks. I arrive in Alaska 11:30PM 9/17 and head back on a hour later at 12:30AM 9/18.

My question is, do I need to physically exit the gate and then go through security again or can I just do OLCI for the both flights and just proceed to the departure gate immediately after landing in Alaska?

No need to exit and go through security again. You already have your boarding pass for the return, so why hassle with security again?

You definitely do not need to leave security. IF you cannot OLCI or get all your BPs before you go to the airport for the initial flight just ask any agent and they can print them all for you.