Mizuno Pro X Ball Test Finds Uneven Quality

Everyday golfers considering the Mizuno Pro X are getting a very firm, lower-spin ball with respectable overall quality, but the test uncovered variation between individual balls. MyGolfSpy awarded the 2025 model a B after examining 36 balls. Of those, 94.4 percent met its standards. The two failures involved layers that were not properly centered.

Firmness was comparatively steady across the sample. The balls averaged 103, while individual readings stretched between 98.3 and 106.0. The resulting 7.7-point difference was smaller than the database norm of 9.5. However, firmness varied within some individual balls. That measure received a C+, matching the broader field’s 2.0-point midpoint rather than the roughly 1.0-or-lower mark associated with leading tour models.

Ball-to-ball weight variation was the main concern and received a C. Measurements began at 1.5919 ounces and topped out at 1.6115. All remained below the USGA limit of 1.6205 ounces, though the third box varied more than the first two. Diameter consistency received a B-, with one ball measuring at the permitted minimum of 1.680 inches. The findings make the Pro X a plausible premium option, with manufacturing uniformity as its principal tradeoff.