So I agree with the OP that this has the best written description of running I have read. Here are what some reviews have to say about the running scenes:
NY Times:
"Little by little, we begin to understand why Jon finds refuge in running, even though he’s so unpracticed that his first run makes him ill. Before long he’s proved himself and becomes one of the stars of the team, earning the anchor spot on the team relay. Refreshingly, though, this is no typical sports novel, the state championship a chance for our underdog to triumph at last by crushing the competition. For Jon, running is survival. It’s a chance to feel whole, visible in his body, while living in a house where he isn’t even sure he exists."
http://www.nytimes.com/2013/08/11/books/review/brewster-by-mark-slouka.html?pagewanted=all&_r=0
Washington Post:
"Soon, he’s improving, learning the rhythm of the road and breaking through limits he thought far beyond him. That sounds, I know, like the starting gun of a race toward a sentimental finish, but Slouka never jogs around that well-worn plot; these pages never shift into a scene of slow-motion victory with Mom and Dad — finally — cheering in the stands. Instead, Slouka concentrates on the way running allows Jon to focus his mind on the elemental properties of physical pain and measurable time; to rise above, for a while at least, the subterranean anguish that would swallow him at home."
http://www.washingtonpost.com/entertainment/books/book-review-brewster-by-mark-slouka/2013/08/13/4f7bc316-f8c9-11e2-b018-5b8251f0c56e_story.html