For 7.5 hours, we did this: Big Bad Blue. The girls had it longer, they were at the school by 7:30, we didn't show up until 9. Nicholas and Jonathon did their soccer from 9:30-10:15, then Nicholas played until 4:30 during the meet while Jonathon went to a birthday party then hung about with the neighbors' at their house. We returned home with enough time for showers and a quick clean-up before folks arrived for Game Night at 7. Scattergories went over really well, we had a good little crowd (10 guests + a few kids), and kicked everyone out at 9:30. Literally kicked them out. I'm such a terrible hostess, but at 9:30 after the last round I said Thanks for coming and everyone got the hint.
Apparently the birthday party went well. Jonathon did not come home with a technicolored chick, thank goodness.