Chatterbox: Inkwell

Has anyone ever tried writing a story in future-tense?  Here's my go at it:

She will dive in.  Her momentum will carry her ten yards.  There will be fifteen more to go.  She won't have to breathe her first two strokes off the wall, nor even her first six.  When she breathes, it will be fast but deep.  She'll then look at the wall.  There will be eight yards left.  She might be able to make the lap without breathing, but she probably won't.  She'll breathe two feet from the wall to prepare for the flip-turn.  After her first breath on her third stroke, she'll be exhausted.  She will resist the urge to look at the other swimmers.  She would know better.  She'll breathe eight times in that lap.  When she gets to the wall, three people will be there already.  She will look at the board before shaking hands with the swimmers in the lanes next to her.

But before all that, she will stand proud on the block, her name written in black on her neon green cap: Lucy.

~~~

I've never done this before.  Is it good?