Hope this helps. Here's a playlist I created a while back for Paltinum Speed runs. If you guys are doing these most of these vids in the play list contain runs of 12, 10, and 9 minutes or less depending on the map.
I wanted to make sure to do these on different maps as speed runs can get tedious and even boring at times if you are doing the same map over and over. This way, you can still do speed runs and change the map combination to keep you from getting disinterested.