When to Restring Your Tennis Racquet: The Guide Most Players Ignore
Here's the honest truth: most recreational tennis players are playing with dead strings right now. Not broken — dead. There's a difference, and it's costing you consistency, power, and potentially your elbow health.
Strings Don't Have to Break to Be Done
The most common misconception in tennis is that you only restring when your strings snap. For polyester players especially, this is exactly wrong. Poly strings go dead — they stop performing — long before they break.
Polyester can shed up to 30% of its reference tension in the first 24 hours after stringing. After that, the degradation continues. Shots start sailing inconsistently. Spin production drops. The string bed feels "mushy." At that point, you're not playing the setup you asked for.
The Rule
Restring as many times per year as you play per week.
Play twice a week? Restring twice a year. Play 3–4 times a week? Restring 3–4 times a year. Simple, effective, easy to remember.
Signs Your Strings Are Dead
→Shots are inconsistent without any change in your technique
→Balls are flying long when they shouldn't be
→The string bed feels "bouncy" or loose compared to when fresh
→Your arm is starting to feel more fatigued than usual
String Type Changes the Timeline
Polyester: Fastest tension loss. Restring every 2–4 weeks if playing frequently, or every 1–2 months for club-level play. Strings can last physically for months while performing terribly.
Natural gut: Maintains tension longer, but more vulnerable to moisture. Competitive players: every 4–8 weeks. Recreational: every 2–3 months.
Multifilament/synthetic gut: Most durable for tension maintenance. Recreational players can often go 3–4 months before noticeable degradation.
Take the Guesswork Out: Use the ERT300
The ERT300 tennis string tester measures your string bed's actual Dynamic Tension (DT). Measure right after a fresh string job, then check periodically. When your DT has dropped 10–20% from the original reading, your strings are past their performance window.
Restringing is the cheapest, most immediate performance upgrade available to most tennis players. If you've been waiting for strings to break, you've been waiting too long.