Yonex
Poly Tour Pro 125
Yonex Poly Tour Pro 125 is the most balanced polyester string in this roundup — it doesn't lead in any single metric but scores exceptionally well across all of them. Spin at 8.5/10 matches Tecnifibre Black Code, but comfort comes in higher at 7.2/10 and power is notably better at 7.8/10, making Poly Tour Pro the preferred choice for players who want a well-rounded polyester rather than a specialist spin or durability tool. Stefanos Tsitsipas has used Poly Tour Pro throughout his career, providing tour-level validation. The string maintains tension better than most polyesters, preserving playability across more sessions before a restring is needed.
Ratings
Spin
Power
Comfort
Durability
Tension loss
Full specifications
Pros and cons
Pros
Best balance of spin, comfort, and power among polyesters
Softer feel than ALU Power or RPM Blast
Trusted by Stefanos Tsitsipas and other top ATP pros
Excellent tension maintenance for a polyester
Cons
Not the outright leader in any single category
Premium price for a brand with lower name recognition
May feel too soft for players who prefer firm polyesters
$18
Price per set
$160 per reel
Buy at Tennis Express →Quick specs