Speaking of marathon, the Backspace April Marathon is going well so far. Although it's a thirty-day challenge, I've been participating in smaller 500-word sprints with a few other writers (mostly J.E. Taylor and A.S. King).
These races have been incredibly helpful.
Basically, this is how it works. In the Backspace forum, everyone meets at the starting line, and someone types "GO!" From there, writers around the country (and one writer from Germany) clickety clack their keyboards until they hit 500. When they do, they post a victorious "Yay," and we have a winner.
The good news is by the time I hit 500 words, I'm deep enough into the writing that I'm able to keep going for another thousand words or so. And my win-loss record is strong, by the way, or maybe it just seems that way because hitting 500 words in less than 20 minutes is a win for everyone.
Word Count: 12,100