Last summer, R-KOM and the University of Applied Science (Fachhochschule, FH) Regensburg, Germany, took their share of the Regensburg city marathon by putting an individual video and image of each runner reaching the goal on the Internet. A cluster of 45 machines rendered the more than five thousand videos. The paper discusses the technical setup and execution of a video rendering cluster based on Open Source software. First, deployment of the cluster clients is discussed, followed by computing steps performed by the cluster – splitting a big video stream into single images and rendering individual videos from the images. Details are given on the hardware and software used as well as optimizations made. Various experiences gained by the cluster project are listed before showing some performance graphs displaying the cluster under load. Lists of facts, numbers and links sum up the whole project.