Source: [Shark](https://sharkbeachtennis.com.br) # Boost Junior 21 mm 2026 Shark Beach Tennis · Boost RR Score 60 out of 100, RR Score RR Score Updated on 2026-10-03 Version · 8 options Boost Junior 21 mm 2026 Change - [Boost Junior 21 mm 2026310 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-junior-21-mm-2026/) - [Boost Pro Sofia Cimatti 2025330 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-pro-sofia-cimatti-2025/) - [Boost Pro 2024330 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-pro-2024/) - [Boost Sofia Cimatti 2026320 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-sofia-cimatti-2026/) - [Boost 21 mm by Sofia Cimatti 2026320 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-21-mm-by-sofia-cimatti-2026/) - [Boost Pro 2023330 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-pro-2023/) - [Boost Sofia Cimatti Junior 2026300 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-sofia-cimatti-junior-2026/) - [Boost 2024330 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-2024/) The Boost Junior is the youth version of the Boost, for players aged 9 to 12 who already hit the ball well and want to improve. It is made of fiberglass with EVA Soft Pro, which makes the hit comfortable while also giving good ball exit. It is 48 cm, has a 21 mm profile and weighs 310 g (±5 g), with an even balance. The micro-granule paint helps generate spin, and the racket comes with a cover for protection and transport. We haven't found offers for this racquet yet. ## Offers We haven't found offers for this racquet yet. ## Price history History in progress We are tracking prices for this racquet. The chart will appear soon. ## Strengths and watch-outs ## Pros - Youth size of 48 cm, for ages 9 to 12 according to the brand - 310 g weight tends to make handling easier for young players - EVA Soft Pro core usually makes the hit softer - Micro-granule paint tends to make spin easier ## Cons - 48 cm length can become too short when the player grows - Fiberglass tends to generate less power on hard shots - Ideal for: Children aged 9 to 12 who already play and need a smaller, light racket - Levels: Beginner ## Specs | Weight | 310 g±5 g | Medium confidence | | --- | --- | --- | | Length | 48 cm | Medium confidence | | Thickness | 21 mm | Medium confidence | | Balance point | Even balance | Medium confidence | | Face material | Fiberglass | Medium confidence | | --- | --- | --- | | Core | EVA Soft Pro | Medium confidence | | EVA type | Soft | Medium confidence | | Holes | No data | Medium confidence | | Texture | Rough | Medium confidence | | Level | Beginner | Medium confidence | | --- | --- | --- | ## How the RR Score was calculated RR Score 60 out of 100, RR Score | Criterion | Weight | Score | | --- | --- | --- | | Specs | 65% | 69 | | Approval from players | 35% | 65 | **The RR Score is not yet a precise figure.** It summarizes the data we have today (specs and reviews) and changes as more information comes in. A low score does not mean the racquet is bad and does not reflect its technical quality: often it is just missing data or reviews. The specs combine several sources and may have discrepancies: check the manufacturer's website and the store where you buy. Kids/junior racquet: the RR Score for this category goes up to 60. It may be great for what it is designed for, but it does not rank among the best in the sport. ## Store reviews We have not gathered store ratings for this racquet yet. Read buyer opinions directly at the store. ## Community 0 review(s) and comment(s) No reviews yet. Have you played with the Boost Junior 21 mm 2026 Shark? Tell us how it went. ## Similar racquets [See more](https://racquetrank.com/ca/beach-tennis/) · Beach Tennis ### V10 2026 by Vero Casadei NOX RR Score 66 out of 100, RR Score - Weight: 330 g - Face: 12K carbon - Thickness: 20 mm No offers right now · Beach Tennis ### NG17 Luxury 2026 by Nico Gianotti NOX RR Score 66 out of 100, RR Score - Weight: 330 g - Face: 18K Aluminized carbon - Thickness: 20 mm No offers right now · Beach Tennis ### No Look Black 2026 Quicksand RR Score 66 out of 100, RR Score - Weight: 330 g - Face: 12K carbon - Thickness: 21 mm No offers right now · Beach Tennis ### Kombat 2026 Gabriele Gini Quicksand RR Score 66 out of 100, RR Score - Weight: 325 g - Face: Kevlar - Thickness: 20 mm No offers right now · Beach Tennis ### Woody Carbon Sexy RR Score 67 out of 100, RR Score - Weight: 355 g - Face: 3K carbon - Thickness: 21 mm No offers right now · Beach Tennis ### Bufo Carbon 3K Sexy RR Score 67 out of 100, RR Score - Weight: 355 g - Face: 3K carbon - Thickness: 20 mm No offers right now · Beach Tennis ### Varadero 3K 2026 NOX RR Score 67 out of 100, RR Score 5.0 (2) - Weight: 330 g - Face: 3K carbon - Thickness: 20 mm No offers right now [See more similar racquets All beach tennis racquets](https://racquetrank.com/ca/beach-tennis/) Version · 8 options Boost Junior 21 mm 2026 Change - [Boost Junior 21 mm 2026310 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-junior-21-mm-2026/) - [Boost Pro Sofia Cimatti 2025330 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-pro-sofia-cimatti-2025/) - [Boost Pro 2024330 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-pro-2024/) - [Boost Sofia Cimatti 2026320 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-sofia-cimatti-2026/) - [Boost 21 mm by Sofia Cimatti 2026320 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-21-mm-by-sofia-cimatti-2026/) - [Boost Pro 2023330 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-pro-2023/) - [Boost Sofia Cimatti Junior 2026300 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-sofia-cimatti-junior-2026/) - [Boost 2024330 gNo price](https://racquetrank.com/ca/beach-tennis/shark/boost-2024/) Boost Junior 21 mm 2026 Shark See offers --- Source: https://racquetrank.com/ca/beach-tennis/shark/boost-junior-21-mm-2026/