“Start unknown, finish unforgettable” is a motivational saying that has been printed on many posters. “Start unknown, finish unforgettable. #swoosh” was cited on Twitter  on September 1, 2011. The saying appears on Nike poster that shows a male athlete running track & field.
 
     
Twitter 
▶ Living King
‏@rhpryce
Start unknown , finish unforgettable. #swoosh
4:37 PM - 1 Sep 2011
 
Twitter
#TeamFitness
‏@TeamFitnessLife
Photo: Start unknown…finish unforgettable http://tumblr.com/ZfadTxAW-Uxk
5:45 PM - 10 Oct 2011
 
Twitter
Adriana Cesar
‏@adrianacesar
START UNKNOWN. FINISH UNFORGETTABLE. #nike http://on.fb.me/nGckVC  #photo
9:30 AM - 20 Oct 2011
 
NJ.com
Girls Soccer
Gateway girls soccer erupts in second half to down Glassboro, reach final
By Scott Chappelear
on November 11, 2013 7:40 PM, updated November 11, 2013 8:04 PM
(...)
“The balls were coming to feet a lot quicker than we’re used to ... but Gateway played great,” said Glassboro coach Scott Rogers. “Our motto all season was start unknown and finish unforgettable. Unfortunately we’re not going to be playing Thursday, but to me this is an unforgettable season.”
 
Notta Lotta Time
Nike Motivational Quotes – The top 10
This entry was posted in Goal Setting Self Awareness Self Improvement and tagged Nike motivational quotes on June 7, 2014
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“Start unknown. Finish unforgettable” – Nike
     
KLTV (Tyler, TX)
TJC softball making early impression
Posted: Mar 24, 2015 7:12 PM EDT
Updated: Mar 24, 2015 7:12 PM EDT
By Ryan Peterson
TYLER, TX (KLTV) - Less than a year into their inaugural season, the TJC softball team is already raising the bar.
(...)
“Our theme this year was start unknown, finish unforgettable,” said Dickson.  “We weren’t on the radar from the beginning. But I think we’re making a splash.”
 
Twitter
Its Track Season
‏@MKelso5
Well at least my motto came true. Start unknown and finish unforgettable.
10:23 PM - 29 Mar 2015