Judging from the first three dev games with statistical data available, the average 5 vs. 5 match of Unvanquished (with resources and confidence) lasts 16:30.
[Resolved] How long should matches last?
Re: [Resolved] How long should matches last?
Responsible for: Arch Linux package & torrent distribution, Parpax (map), Chameleon (map texture editor), Sloth (material file generator), gameplay design & programming, artistic direction