Infact
86 / 100
True world

The text states that tennis racket strings used to be made with sheep intestines.

Infact verdict: True (86/100).

Historically, tennis racket strings were indeed made from natural gut materials, primarily sheep intestines, known as "natural gut strings." This is supported by historical evidence that indicates natural gut was a preferred material due to its elasticity and performance qualities. Today, synthetic materials are more commonly used, but natural gut is still available. One reliable source for tennis equipment confirms this historical practice.

April 12, 2026 Language: en 1 claim analyzed
How is this score determined? →

Individual claims

86
True Sports
The strings on tennis rackets used to be made with sheep intestines.
Historically, tennis racket strings were made from sheep intestines, which is known as 'natural gut.' Evidence from reliable sources like Babolat confirms this past practice. Today, while most strings are made of synthetic materials, natural gut is still used for its performance advantages.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 90
Web Consensus Weight 50
Source Quality Score 95
Source Quality Weight 25
Llm Reasoning Score 95
Llm Reasoning Weight 25
Weighted Total 86
Evidence Summary Historical sourcing confirms tennis strings used to come from sheep intestines (natural gut).

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