"How’s my running? Call 1-800-EAT-DUST” is a jocular saying that has been printed on many gift items, such as T-shirts (on the back) and bumper stickers. “How’s my driving?” has been a popular bumper sticker since the 1980s.

“How’s my running? 1-900-Eat-Dust!’’ was cited in print in 1995.


5 October 1995, The Spokesman-Review (Spokane, WA), “Two teams on quests to break streaks”:
It had the following message: “How’s my running? 1-900-Eat-Dust!’’

16 July 1997, The Capital Times (Madison, WI), “High-tech sportswear,” pg. 5B, col. 6:
It reads (on the back, of course): How’s my running? Call 1-800-EAT-DIRT.

Cool Running Discussion Forums
track quotes
swedechick
posted Nov-13-2006 11:10 PM
runners have balls, other sports just play with them
if you run, be proud. most sports only require one ball
how’s my running? call 1-800-eat my dust or i beat you

SoonerFans.com—Sooner Football
soonerloyal
12/24/2006, 11:37 AM
Re: What will AD’s pads say this time?
“Lead, follow, or get the hell outta the way”
“If you can read this, I burned your ***”
“How’s my running? Comments, call 1-EAT-ADs-DUST”

Google Books
One More Step
The 638 Best Quotes for the Runner:
Motivation for the Next Step!
By Randy :. Thurman
Bloomington, IN: iUniverse
2012
Pg. 33:
How’s my running? Call l-800-eat-dust
-- Back of a runner’s shirt