Yesterday's oneword (a site I wrote about a while back) was pitch, which made me think of baseball and resulted in the following minute-long effort...

It isn't the way you throw
It's the way you pitch
Take the ball and hold it so
Hidden behind your glove
With your fingers like this
Pull back your arm and
Then hurl it forward
Releasing the ball
Remember
It's all about timing

This is also known as poetry in sixty seconds or fastball poetry.