jumper (n.)

• archer
• athlete
• ballplayer
• baseman
• batter
• battery
• bowman
• catcher
• center
• coach
• competitor
• cricketer
• diver
• end
• flea
• footballer
• frog
• frogman
• gazelle
• goat
• grasshopper
• guard
• hopper
• hurdler
• infielder
• jackrabbit
• jock
• kangaroo
• layette
• leaper
• lineman
• outfield
• outfielder
• player
• plunger
• pugilist
• quarterback
• racer
• salmon
• skater
• sport
• sportsman
• stag
• tackle
• tailback
• vaulter
• wingback
• wrestler