An avatar or avatar environment to visualize data may be provided within a social networking system or service, for example as part of the Internet, and/or within a desktop widget, panel, gadget, or the like. The avatar may further evolve or alter its appearance, animation, or other visual or audio characteristics in response to the data or other input such as athletic activity performed by a corresponding user. In particular, the avatar of an embodiment may respond to and provide visualization of athletic or sport performance data.