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Mizuno RB 566
Mizuno

RB 566

Golf Balls

No price recorded yet — no live retailer offer and no published MSRP.

OverviewSpecs5Offers0Data sources

At a glance

Construction

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3
Cover

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ionomer
Feel

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soft
Cover layers

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1
Dimple pattern

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micro-dimple

All 5 specifications

From Mizuno

The RB566 is an even softer feeling version of its predecessor with a new micro-dimple configuration to maintain hang-time past the apex of flight. With a softer yet higher energy core, the RB566 offers a great balance of high trajectory, soft feel and all-round performance.

Mizuno's product page

Independent test data

Measured

Numbers below were measured by a third party, not by the manufacturer.

Test conditionApex heightLaunchDescent angleBackspinCarryBall speedCompression
56° wedge @ 46 mph7 yds30.6°36°5960 rpm———
7-iron @ 80 mph29.6 yds20.7°45.3°4947 rpm154.8 yds109.1 mph—
compression——————92
driver @ 114 mph31.5 yds11.1°36.9°2719 rpm268.6 yds161.9 mph—
driver @ 93 mph21.9 yds13°31.6°2553 rpm207.9 yds133.3 mph—
driver @ 78 mph15.4 yds14.1°27.2°2381 rpm160.2 yds112.6 mph—

Robot test by Today's Golfer (2025) — measured data reproduced as facts with attribution.