Being close to Denver & I-70, with very easy access, and generally easy climbing, Grays & Torreys are among the most popular of Colorado's 14ers.  Several FKT options have been presented:

-Standard lollipop loop from Stevens Gulch TH at 11,200', following the main trail to summit both peaks and return.

summitpost.org:

Gabe Joyes posted the route:

Wind River Peak, the tallest mountain in the southern end of the Wind River Range at 13,192'.  I've ran up the mountain a few times, and seeing how there is no current FKT, I'm calling my latest and fastest exploit the fastest one known.