Rhabdomyolysis is a condition in which damaged skeletal muscle tissue breaks down rapidly. Breakdown products of damaged muscle cells are released into the bloodstream
You would need to look at other conditions in addition to acute dehydration. Exertional rhabdomyolysis has been measured in marathoners and ultra runners and usually resolves unless there is a combination of heat stress, NSAIDS, illness etc., that may lead to muscle proteins increase in concentration in the blood but acute renal failure is rare.