Wood Games 3D is an athletics game set in an outdoor medieval world - you compete in events like the long jump, sprint, shooting, hurdles, and one or two events that combine two of those basic styles - there are 7 events in all. There's a browser version (needs the Java plug-in) and also an Android version There's an online high score table for each event, a daily world championship, achiements and challenges (although quite a few features are only for the Android version of the game). Both the browser and Android versions are free.
I played the browser version for a while and it's quite fun, a lot like some of the old joystick-busting athletics games for the 8-bit and 16-bit machines, only this time it's your mouse that's going to get wrecked. The events are quite nicely varied, the controls work okay, and I found that I was much better at some events than others. The controls are simple but sometimes a little fiddly until you get used to them. The graphics and music were good, though I did often get the feeling the the perspective of your character was wrong - he seemed to be lying face forwards on the floor rather than on his feet when he ran!