Kirschbaum · Polyester

Kirschbaum Competition

Round co-polyester monofilament

Log this string Compare Data verified January 2025
Price per set$9–12USD, typical retail
Gauges16, 17Yellow, Black
StiffnesshighPolyester
Junior minimum age14+advanced, elite

Performance ratings

Power 5
Spin 7
Control 9
Comfort 4
Durability 9
Tension hold 7

Overview

Kirschbaum Competition is one of the original German polyester strings, designed for maximum control of powerful shots. With extreme durability and great tension maintenance, it's particularly suited for open string patterns. The manufacturer advises reducing tension by 1-3 kg compared to traditional polyester strings for optimal comfort and playability. This is a classic control string for players who generate their own power.

Best for

  • Control-oriented advanced players
  • Heavy hitters who break strings
  • Players generating their own power
  • Open string pattern racquets

Not ideal for

  • Arm-sensitive players
  • Those needing power assistance
  • Beginners and intermediates
  • Players seeking comfort

Pros

  • Maximum control for big hitters
  • Excellent durability
  • Great tension maintenance
  • Outstanding value
  • Ideal for open string patterns

Cons

  • Very stiff - not comfortable
  • Low power
  • Not arm-friendly
  • Requires advanced technique

Stringer notes

String 1-3 kg lower than typical poly. Extreme durability - great for string breakers.

Break-in period

1-2 hours for full break-in.

When to replace

Every 20-25 hours thanks to durability.

Hybrid setup ideas

  • Kirschbaum Touch Multifibre crosses
  • Wilson NXT crosses
  • Natural gut mains

Used by

Florian Mayer, Various German club players

Specifications

Type
Polyester
Construction
Round co-polyester monofilament
Gauges
16, 17
Colors
Yellow, Black
Set price
$9–$12
Reel price
$85–$105
Brand
Kirschbaum (Germany)

Sources & reviews

Data verified January 2025. Something wrong? Send a correction.