Size Guide

Choose the right Grip

The grip size refers to the circumference of the handle. The circumference is measured in two units and both are listed on the racket. The first is the European “L” measuring system. The latter is the imperial system, measured in inches.

There are six different grip sizes available for adult tennis rackets. Keep in mind not all rackets are made available in every grip size.
Grip Sizes

L0

L1

L2

L3

L4

L5

4”

4 ⅛”

4 ¼”

4 ⅜”

4 ½”

4 ⅝”

At Rackets & Runners we like to fit our rackets by having the player grip the handle of the racket with an eastern grip (think of holding a hammer or frying pan). From there we are looking to achieve about a finger’s width between the tips of players fingers and the palm of the hand.

If you cannot visit our store or have access to a racket to measure yourself, but have access to a ruler, no need to worry. Open your dominant hand with your fingers pressed together, and measure from the tip of your ring finger to the middle horizontal crease of your palm in inches. This measurement will correspond to your grip size.

If you are between grip sizes, we always recommend going slightly smaller as it is much easier to build up a grip size than it is to decrease one.

String Guide

How to Choose Your String

Strings are the only part of your racket that actually touches the ball, which makes them more important than most players realize. Type and tension both have a big impact on how your racket plays. This guide covers the four main string types and how to choose between them.
String Type Key Benefits Drawbacks Recommended Player Level Recommended Gauge Recommended String

Synthetic Gut

Good tension maintenance, durable

Basic playability; not meant for high-level performance

Beginners / Casual players

1.30 mm (16 gauge)

Wilson Syn Gut Power, Head Synthetic Gut

Multifilament

Softest synthetic, high power, excellent comfort

Breaks quickly; lacks heavy spin potential

Beginners / Intermediates / Touch players

1.30 mm (16 gauge)

Standard: Wilson Sensation, Head Velocity
Premium: Babolat Xcel, Wilson NXT, Tecnifibre NRG; X-One Biphase

Polyester

High control, massive spin potential, high durability

Stiff, low comfort, loses tension quickly

Advanced players

1.15 mm – 1.30 mm

Slick: Babolat RPM Blast
Sharp: Solinco Hyper-G
All-Around: Toroline Wasabi
Comfort: Toroline Caviar, Yonex Poly Tour Pro

Natural

Maximum power, best feel & comfort

Extremely expensive, breaks quickly

Players with severe arm injuries, or traditionalists with deep pockets

1.30 mm (16 gauge)

Babolat Touch VS

Gut Hybrids (Poly + Multi)

Best of both worlds: control/spin + comfort/power

Poly mains quickly break multi crosses

Intermediate to Advanced

Multi gauge: 1.30 mm, Poly gauge: Variable

Round poly with cheaper multi
Tennis / Wilson
Wilson

ultra pro 99

$289.98

New Wilson Ultra Pro 99 Wilson Ultra Pro 99 Wilson Ultra Pro 99 Wilson Ultra Pro 99 Wilson Ultra Pro 99 Wilson Ultra Pro 99 Wilson Ultra Pro 99
Wilson Ultra Pro 99
Wilson Ultra Pro 99
Wilson Ultra Pro 99
Wilson Ultra Pro 99
Wilson Ultra Pro 99
Wilson Ultra Pro 99
Wilson Ultra Pro 99
Wilson

ultra pro 99

$289.98

The Ultra 99 Pro V5 serves up flagship innovation in the Ultra line.

Grip Size
Size Guide String Guide
Unstrung / With String
String Pattern
Cross string
Tension

The suggested tension range can be found in the racket’s description. If you are unsure, set the tension fields to 0 and we will string at the optimum tension based on the string type you have chosen. We will not string above the manufacturers recommended range.

Special notes

Due to high demand, racket stringing will take a 4-6 days before shipping occurs.


This item is a preorder product. Purchase the item now and it will ship as soon as it is in stock.

Free Shipping
on orders $150+

This product ships to
Canadian addresses only

Don't see your size? Contact us.

Details

The Ultra 99 Pro V5 serves up flagship innovation in the Ultra line. Designed for advanced players, this racket utilizes cutting-edge tech to provide consistent power, enhanced spin and precise control. The Pro Labs series' hallmark thin beam geometry and head-light balance are complemented by a unique, open 16x18 string pattern that delivers forgiveness and extra spin.

Featuring a sleek, high-gloss finish in an electrifying shade of indigo, the Ultra 99 Pro V5 is crafted to inspire and perform at the highest level, setting a new standard for serious players.

  • Head size: 99 in² / 639 cm²
  • Weight: 305 g unstrung
  • String pattern: 16x18
  • Length: 27 in
  • Balance: head-light
  • Thin beam geometry

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Shipping & Returns

🇨🇦 Free standard shipping over $150 (after discounts, before shipping + taxes) All items ship from within Canada.

All rackets are eligible for return or within 14 days of delivery. After 14 days of purchase, customers are eligible for an exchange or in-store credit only. 

Eligible rackets can be returned within 14 days of delivery for refund. Before 30 days, customers are eligible for an exchange (in-store only) or store credit (in-store and online). To be eligible for refund, the plastic wrap on the racket handle must not be removed and the racket cannot have been strung. Sale items under 50% off are only eligible for store credit upon return.

For more information, view our full return/exchange policies.

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