Dot Mayhem - 24 Hours in the Old Pueblo
What if you had GPS data for every rider in a 24 Hour Race? Well, you could plug it into TopoFusion and watch the whole race unfold...
This video is a full replay of the 2010 24 Hours in the Old Pueblo. Every rider is represented by a single dot. Dots are colored by the lap number they are on. Lap 1 = Red, lap 2 = orange, ... lap 10 = blue. It then cycles, with lap 11 = red up to lap 20 = blue.
Near the end of the first lap, each category winner is labeled, with the lap number they are on following their name.
Here is a video showing the top 10 solo men:
How did we do it?
No, we did not convince every rider to carry a GPS (though many did!). What we took was a single GPS track of a rider in the race (TopoFusion's Scott Morris) and then cloned that track, with speeds porportional both to everyone's lap times and the actual speeds recorded by GPS. Throw the full lap result file at it and you have a gigantic GPX file (with over 6 million GPS points, and almost a gigabyte when saved to GPX) ready to be replayed in a capable GPS program.
Fortunately TopoFusion is up to the task, using the Multi-track playback function.
A couple more videos, highlighting different categories.