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What a string hybrid is and when to use one

Putting two different strings in the same racquet, why half the pro tour does it, and whether it suits you.

By Francisco De Jesús · Tennis Pro, FDJ Tennis Academy · updated 2026-09-06

A hybrid means stringing two different strings in the same racquet: one in the mains and another in the crosses. It is not a lab trick: a large share of the professional tour plays this way.

Mains and crosses do different jobs

The mains run top to bottom. They move most at impact, they generate the spin and they break first. The crosses hold them in place and provide much of the feel.

Since they do different jobs, it makes sense that they are not the same string.

The two setups you will see

SetupMainsCrossesWhat it achieves
The classicPolyesterNatural gut or multifilamentPoly's control and spin, with some of the other's comfort and power
The reverseNatural gut or multifilamentPolyesterMore power and feel, slightly less spin. Less common

Why it might suit you

Why it might not

The honest rule

A hybrid is a good answer to a specific problem, not an automatic upgrade. If you cannot say in one sentence what you are trying to fix, you do not need a hybrid yet: try changing string type or tension first.

Arrange my stringing

Read next: polyester or multifilament and what tension to use.