Head BOOM Junior 25" Alternate Tennis Racquet (2026)

New for 2026, the Head BOOM Junior 25" Tennis Racquet is designed to help younger players aged 8-10 supercharge their power, confidence and enjoyment of the game. Coming in Coco Gauff's favourite colour (purple), you can match her style too.

Based on the adult BOOM MP and BOOM MP L models, this junior frame features smaller dimensions tailored to developing players while still delivering modern, explosive performance. Weighing just 230g unstrung, with a 100 sq. in. head and 16x19 string pattern, it offers easy access to depth and spin, along with the touch needed for controlled rallies and developing all-court skills.

The addition of Hy-Bor technology, a high-performance material mix used in aerospace, enhances perceived stability and creates a more solid impact feel. Auxetic 2.0 construction provides improved feedback and a more connected response, while Graphene Inside strengthens the frame and optimises energy transfer for added power.

Head BOOM Junior 25" Alternate Tennis Racquet (2026)

Purple is Coco Gauff’s favorite color and the tonal purple design of the BOOM ALTERNATE JR 25 – which is endorsed by Gauff and Lorenzo Musetti – offers a striking and progressive look that matches the racquet’s explosive feel. Younger juniors aged from 8 to 10 can make a powerful statement with a racquet that combines explosive power with the touch to play delicate drop shots, letting them play modern tennis. The introduction of Hy-Bor, a state-of-the-art material mix that is mainly used in the high-tech aerospace industry, to the racquet’s shaft has improved the perceived stability and power. This model has a construction that is based on the adult MP and MP L racquets in the BOOM series, with smaller dimensions to suit up-and-coming juniors. With the power, confidence and fun that comes from playing with the BOOM ALTERNATE JR 25, juniors don't have to think about anything else but enjoying the moment and hitting their next shot. 

Weight (unstrung): 230 g / 8.1 oz
String Pattern: 16/19
Head size: 645 cm² / 100 in²
Balance: 315 mm / even
Length: 635 mm / 25 in
Beam: 24 mm
Age: 8 - 10