I have released a new version of UMark recently, which features dozens of improvements. UMark supports UT2003 and UT2004, both Demo and Retail versions. It supports botmatch, flyby, and timedemo benchmarking.
A complete list of changes can be viewed here:
You may download the free software here:
Results can be submitted to the new UMark Online database. Here are some of my own results: