Answer: TENK
TENK is a crossword puzzle answer that we have spotted 57 times.
    - Popular race
 
    - Common race
 
    - Certain race, informally
 
    - Race much shorter than a marathon
 
    - Lengthy footrace
 
    - Race of about 6.2 mi.
 
    - Certain race ... or a cryptic title to this puzzle
 
    - Fun race
 
    - It's no marathon
 
    - Piece of cake for a marathoner
 
    - Race that's about 6.2 miles long
 
    - Medium-distance run
 
    - Metric mini-marathon
 
    - Long footrace
 
    - Popular run
 
    - Race of a little over 6 mi.
 
    - Road race distance
 
    - 32,808 152/381-ft. footrace
 
    - About 6.2 mi.
 
    - Long race, for short
 
    - The world record for it is a little more than 26 minutes
 
    - Race of about six miles
 
    - Fairly long run
 
    - Race distance
 
    - About 1/4 of a marathon
 
    - Good-sized run
 
    - Marathon prep, maybe
 
    - Common road race type
 
    - Long footrace, for short
 
    - Charity event, often
 
    - Kind of race, for short
 
    - Short race, for short
 
    - Endurance race, for short
 
    - Medium-distance run, for short
 
    - Marathoner's practice
 
    - Six-mile-plus run, briefly
 
    - Half-marathoner's warm-up race
 
    - Type of run
 
    - Race distance, informally
 
    - Marathon prep run
 
    - 6.2-mile race
 
    - Prep for a marathon
 
    - The Vancouver Sun run, e.g.
 
    - Quite a run
 
    - Run of about 6.2 miles
 
    - Long race, in brief
 
    - Many a charity run
 
    - 6+-mile race, for short
 
    - Running event
 
    - Race that's about 6.2 mi. long
 
    - Nearly 25% of a marathon
 
    - Common race length
 
    - About 11,000 yds.
 
    - Fundraiser scrapped by rain
 
    - Road race distance that's about 6.2 miles
 
    - Good practice for a half-marathon
 
    - 6.2-mile-long running event