The O3 Speedport Platinum OS+ is a performance tennis racquet that is designed for players with shorter, slower strokes and is the most powerful and lightweight racquet in Prince's O3 Speedport series. The racquet features a strung-thru stringing system to provide an up to 70% larger sweet spot compared to other racquets. It is engineered with a Speedport shaft which increases racquet speed up to 30% and has been wind-tunnel proven to move through the air up to 24% faster than other racquets. The O3 Speedport Platinum OS+ has a Twin Morph Taper Beam and lightweight construction for better power and maneuverability. It also includes a DuraSoft+ grip and TPR throat insert for shock damping and has an Air Bridge Yoke to stabilize the frame. The racquet has a suggested retail price of $290.
| Head Size | 125 sq in Strung-Thru |
| Length | 27.5" |
| Weight | 8.9oz/253g |
| Balance | 7 pts Head Heavy |
| Swingweight | 289 |
| Stiffness | 70 |
| Width | 27-30-27 mm Tapered Beam |
| Composition | High Modulus Graphite with Titanium and Tungsten |
| Power Level | 1700 |
| Swing Speed | slow |
| Grip Type | DuraSoft+ Grip size 4 |
| String Pattern | 16 x 19 |
| Tension | 59-69 pounds |