Year: 1998
Wilson Hyper Hammer 5.3 Stretch OS is a tennis racket with head size 110in² and a string pattern 16x20.The declared unstrung frame weight is 240g, the balance is equal to 365mm and the stiffness is 72 RA.

Wilson
Hyper Hammer
240g (8.00 oz)
110 in²
16x20
72 RA
365mm
This racquet sits in the oversize game improvement category and is designed around its primary performance strengths. The 110 in² head size boosts forgiveness and sweet spot size. A stiffness rating of 72 RA results in a firmer, more responsive feel at impact. With an unstrung weight of 240 g, the frame favors maneuverability. The 16x20 string pattern (open) influences spin access and launch angle. Performance-wise, it scores 100/100 for power, 60/100 for spin, and 20/100 for control, outlining its on-court behavior. It is best suited for beginner players.
Across community forums, feedback on racquets in this category is generally consistent. Forum users commonly point out the forgiving nature of larger-headed frames like this, especially on off-center hits. Overall, it is most often recommended by users for beginner players.
100/100
60/100
20/100
40/100
53/100
47/100
69/100
49; 59 lbs
Multifilament
15% Hyper Carbon / 85% Grafite
cushion aire conform grip
28-25-25 mm
28.0; 25.0; 25.0