The Most Dangerous Game
How do we know Rainsford is an exceptionally fit man?
Another question is What caused Rainsford to believe Zaroff knew he was hiding in the tree?
Another question is What caused Rainsford to believe Zaroff knew he was hiding in the tree?
When Rainsford falls off his boat, he swims to the island. It is mentioned that Rainsford has "strong strokes" and doesn't tire easily. Rainsford is your typical escape story protagonist; he is more or less perfect. It is also mentioned that he is a famous hunter known for his prowess in all kinds of deep and hazardous terrain.