One lucky fan will get the chance of a lifetime at spring training next year and square off against Giants' ace Tim Lincecum.

The two-time Cy Young Award-winning pitcher is leading a competition that asks fans to mimic his delivery ("most certainly not the vanilla, standard delivery") on video, and the person who does the best imitation will be chosen to step into the batter's box against the star pitcher.

The "Red Bull Ultimate" contest got underway on Tuesday and goes through Sept. 16. Submissions can be made through Lincecum's Facebook page. Judges will evaluate based on creativity, originality, performance, and skill level, among other criteria.

While the thought of stepping into the batter's box against one of baseball's best pitchers may appeal to some fans, not everyone thinks this is a good idea.

Check out Lincecum's slow-motion delivery below: