"Length of some fun runs informally" NYT crossword answer is:ONEK (4 letters length)
The answer for "Length of some fun runs informally" crossword clue is listed above to help you solve the puzzle you are currently working on.
The length of some fun runs can vary greatly depending on the event. Some may be as short as a 5K, while others may be as long as a marathon. Some fun runs may even be longer than a marathon, such as an ultramarathon. The length of the run is usually determined by the organizer of the event and can be a great way to challenge yourself and have fun.