I trained tennis before and the rule for tennis grip size is : Holding an eastern forehand grip (the palm is placed against the same bevel as the string face), you should be able to fit the index finger of your non-hitting hand in the space between your ring finger and palm. If there isn't enough room for your index finger, the grip is too small. If there is space between your finger and palm, the grip is too big. Should i maintain that rule for badminton ? I got feeling that I should not ! On my racquet there is no space between ring and palm, they are just barely touching. Any suggesions about right size ?