1) Beguiler 2) Cheat 3) Cheater 4) Deceitful one 5) Deceiver 6) Slicker 7) Trickster 
In handicap league bowling, a bowler who purposely keeps his or her average down so as to get a higher handicap. This practice is frowned upon.
• (n.) An assaulter whose weapon is a sand bag. See Sand bag, under Sand.
Bowler who keeps his average down purposely in order to receive a higher handicap than he deserves.
Normally any golfer who tends to pretend how worse he is at golf (which he or she is actually not) and misleads others is called a sandbagger. He indulges in inflation of his handicap index to enhance his possibilities of winning the bets or tournaments.
A golfer who lies about his ability to gain an edge in the game.
Sand'bag`ger noun An assaulter whose weapon is a sand bag. See Sand bag , under Sand . 
[n] - someone who deceives you about his true nature or intent in order to take advantage of you
A bowler who keeps his average down in order to receive a higher handicap.
noun someone who deceives you about his true nature or intent in order to take advantage of you
Someone who enters a time for a race that is considerably slower than his actual time.