Driver · 2021
Titleist TSi1
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 13 July 2026
Performance index
Six researched ratings, lower (blue) through to elite (gold).
Where it wins
- Looks83
- Feel82
- Sound81
Watch
Rated highest for looks and feel; its softest dimension is workability.
You swing under about 90mph, fight a slice, and want the lightest, easiest-launching Titleist to add speed off the tee.
You swing at a decent clip or want to work the ball — a heavier, neutral head will give you more.
Pros
- An ultralight build and a fast titanium face add real club and ball speed for a swing under 90mph
- A strong draw bias helps straighten a slice off the tee
- An easy, high launch and repeatable, well-grouped drives keep it playable for a slower swing
Cons
- Short against the field in absolute terms — it's built for slower swings, not outright distance
- The built-in draw bias and fixed weighting leave little room to shape a shot
- A faster swing overpowers it — the TSi2 or TSi3 will suit you far better
By dimension
Forgiveness
SolidTitleist chased speed over raw MOI here, but a strong draw bias and tight dispersion still steer the target slicer straighter.
Distance
SolidBuilt to add speed for a swing under 90mph — genuinely long for that player, modest against the field.
Workability
ModestA draw-biased help head with no movable weight — it leans the ball left rather than letting you shape it.
Feel
ExcellentImpressively solid for how light the head is — firm and stable at impact, with a clear nudge on a miss.
Sound
StrongA firm, slightly hollow ring at impact — on the quiet side, and it flattens out as you drift off centre.
Looks at address
ExcellentA large, round-crowned head that frames up square — a tidy, reassuring Titleist look at address.
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 Titleist TSi1 Driver Review | Plugged In Golf
- Read the full review at Titleist TSi1 Driver Review | Golf Monthly
- Read the full review at Analyzing the last three versions of Titleist drivers with a swing robot | Golf Digest
- Read the full review at Titleist TSi4 Driver, TSi1 Driver and TSi1 Fairway Wood | MyGolfSpy
- Read the full review at Titleist TSi1 Driver Review — Lightweight Performance | Golfstead
- Read the full review at Titleist TSi1 Driver Review | Swing Yard
- Read the full review at Titleist TSi Driver Review: Speed and Forgiveness | Practical Golf
- Read the full review at Titleist TSi1 Driver — official specs | Titleist
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Frequently asked questions
Who is the Titleist TSi1 best for?
You swing under about 90mph, fight a slice, and want the lightest, easiest-launching Titleist to add speed off the tee.
Who should avoid the Titleist TSi1?
You swing at a decent clip or want to work the ball — a heavier, neutral head will give you more.
What handicap is the Titleist TSi1 suitable for?
The Titleist TSi1 scores strongest for high-handicap golfers, and also suits mid-handicap golfers.
What is the Titleist TSi1 best at?
In our research the Titleist TSi1 rates highest for looks at address and feel, and is softest on workability.
Does the Titleist TSi1 have a shot bias?
The Titleist TSi1 has a draw bias, with a high launch and mid spin.