Driver · 2023
Mizuno ST-G 230
The CaddyIndex™ breakdown: our rating across all six performance dimensions, researched from published expert reviews, online sentiment and our own weighting algorithm.
By the CaddyCompare editorial team · updated 29 May 2026
Performance index
Six researched ratings, lower (blue) through to elite (gold).
Where it wins
- Looks90
- Feel87
- Sound86
Watch
Rated highest for looks and feel; its softest dimension is forgiveness.
You're a strong ball-striker who wants an ultra-low-spin, compact, endlessly tuneable tour head with elite feel and looks, and you'll trade forgiveness for control.
You need forgiveness or an easy launch - the larger ST-Z 230 (neutral) or ST-X 230 (draw) are far more stable choices.
Pros
- Highly tuneable low-spin tour head - two weight tracks and two 7g weights set ultra-low spin, mid spin, or draw/fade bias, plus a wide 7.5-12.5 degree loft range
- Faster face - the new lighter Ti 412 alloy and Cortech Chamber added about 1.5 mph of ball speed in tour testing
- Elite, tour-tuned feel and sound - reinforced internal ribs and a carbon wrap-over crown deliver a solid, powerful, muted impact
- Among the best-looking drivers on the market - a compact 440cc head with near-perfect shaping
Cons
- Not a forgiving driver - the compact 440cc head and modest 14g of movable mass sacrifice stability for control
- A challenger-brand, better-player's tool that needs a fitting and a good strike to shine
By dimension
Forgiveness
SolidA step down, and the deliberate trade-off - the ST-G is not a forgiving model due to its 440cc head, and the 14g split between two weights isn't a huge amount. The compact 440cc head sacrifices stability for control, smaller than the 220 and built for the player who finds the centre.
Distance
StrongStrong and a touch faster than the 220 - an average 1.5 mph ball-speed gain from the new lighter Ti 412 alloy face, with mid-low to super-low spin options keeping the flight efficient. The Cortech Chamber positions mass near the face for added flex and low spin.
Workability
StrongExceptional - the headline trait, helped by the compact head. Two convergent weight tracks let it be a low-spin bomber, fade or draw biased, or a more stable compact driver, with weights set extremely low spin (front) to maximum stability (back), plus draw or fade. As shapeable as drivers get, in a workable 440cc shape.
Feel
ExcellentElite and tour-tuned - a Cortech Chamber (a steel weight in elastomeric TPU) and a new carbon wrap-over crown that absorbs vibration, with internal ribs delivering the feel favoured by tour staff, and a dense, powerful Mizuno impact. No matter the weight configuration, the feel stays consistent.
Sound
ExcellentRefined and improved - reinforced internal ribs added specifically to mute the sound and tune it to tour-staff preference, with mass near the face for a powerful note. A controlled, premium, muted impact.
Looks at address
Class-leadingA class leader - among the best-looking drivers on the market, with the ST-G the pick of the bunch and near-perfect head shaping, plus a new carbon-fibre wrap-over crown and clean compact profile. Arguably the best-looking driver of its year.
Sources
Dig into the independent expert reviews and lab tests that feed into how every club here is rated. Each one is worth reading in full — they carry the launch-monitor data, hands-on testing and detailed photography that paint the complete picture before you buy.
- Read the full review at Mizuno ST-G Driver Review - Golf Monthly
- Read the full review at Mizuno ST-G and ST-Max 230 drivers: Full review, robotic testing data and more - GOLF.com
- Read the full review at Mizuno ST-G driver (2023): What you need to know - Golf Digest
- Read the full review at Mizuno ST-G 440 (2023) Driver Review - Today's Golfer
- Read the full review at Mizuno ST-G 230 Driver Review - GolfReviewsGuide
We paraphrase and synthesise these sources; we don't republish them. Publishers can read how we use reviews or request a change.
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Frequently asked questions
Who is the Mizuno ST-G 230 best for?
You're a strong ball-striker who wants an ultra-low-spin, compact, endlessly tuneable tour head with elite feel and looks, and you'll trade forgiveness for control.
Who should avoid the Mizuno ST-G 230?
You need forgiveness or an easy launch - the larger ST-Z 230 (neutral) or ST-X 230 (draw) are far more stable choices.
What handicap is the Mizuno ST-G 230 suitable for?
The Mizuno ST-G 230 suits a broad range of abilities, from high-handicap beginners through to scratch and tour players.
What is the Mizuno ST-G 230 best at?
In our research the Mizuno ST-G 230 rates highest for looks at address and feel, and is softest on forgiveness.
Does the Mizuno ST-G 230 have a shot bias?
The Mizuno ST-G 230 is broadly neutral in shot shape (no built-in draw or fade bias), with a mid launch and low spin.