Titleist · Fairway · 2021
TSi1
CaddyIndex™ breakdown — what the agentic research found across each of the six performance dimensions, with cited sources.
You're a moderate swing-speed player (60-90mph driver) at mid-to-high HCP (10-36) who needs ultimate forgiveness, easy launch, and a sweeper-friendly low leading edge — the lightest fairway in the Titleist line.
You swing over 90mph (the TSi2 / TSi3 will give you more ball speed), you shape shots (the head is built for forgiveness, not workability), or you want a tour-validated head (this is the slow-swing entry).
Pros
- Number one priority is forgiveness, not workability — purpose-built slow-swing forgiveness profile
- MOI on the same level as the forgiveness-spec sibling despite 50g lighter total weight (10g out of the head)
- Extensive loft range — 15°, 18°, 20°, 23° (3W through 9W) — most lofts in the 2021 line
- Reviewer-tested: 68.8mph swing produces 102.2mph ball speed, 14.6° launch — easy elevation for moderate swings
Cons
- Targeted only at moderate swing-speed players (under 90mph driver) — not a fit for mid/fast swings
- Workability is explicitly deprioritised — pancake profile + deep back-CG biases launch over shape control
- No movable-weight system — fixed back-CG architecture only
- Limited tour validation — slow-swing entry, not a head used by the brand's PGA Tour staff
By dimension
Forgiveness
Reviewer testing: the number one priority with these fairway woods is forgiveness, not workability — head offers a higher MOI than the forgiveness-spec sibling thanks to the shallow shape and repositioned mass. Manufacturer: deep CG locations have been optimized to generate the launch and spin needed by moderate speed players to carry the ball farther, while maximizing off-center ball speed through high MOI properties. Independent robot testing: MOI on the same level as the forgiveness-spec sibling, despite the lighter weight. Above-average forgiveness — purpose-built slow-swing max-forgiveness profile.
Distance
Manufacturer: expect a bit more head and ball speed (numbers at one mph and just under one mph, respectively), along with increased launch and mid-spin performance. Reviewer testing: 15° 3 wood tested at an average swing speed of 68.8 mph, the average ball speed was 102.2 mph with an average launch angle of 14.6° and average spin rate of 2,763 rpm. Mid-launch/mid-spin slow-swing fairway — gentle distance gains for the target swing-speed band, not a peer to the tour-spec siblings in raw distance.
Workability
Reviewer testing: the number one priority with these fairway woods is forgiveness, not workability. Independent robot testing: pancake profile — shallow top to bottom, longer from front to back, with a leading edge that sits close to the turf. Deep back-CG architecture biases launch over shape control. Slow-swing target audience doesn't get tour-CG shot-shaping. Below-average shape-control — engineering trades workability for forgiveness and easy launch.
Feel
Reviewer testing: head feels extremely light in hand and sounds great with all of the brand's signature technology wrapped up in a lightweight package. Reviewer testing: impact feel is excellent given the light weight of the club, and feedback in hands matches up to the sound distribution — every decent strike feels pure and the club head feels stable when contact was off. Average tour-tier feel — light, stable feel with good positional feedback, not the solid crack of the tour-spec siblings.
Sound
Reviewer testing: at impact, the head produces a metallic pop sound that has a bit of hollowness to it but is also firm enough to feel stable. Sound gets duller and less crisp as you move away from the sweet spot. Reviewer testing: sounds great with all of the brand's signature technology. Average tour-tier acoustic — metallic pop with light hollowness; not as refined as the successors.
Looks at address
Reviewer testing: head shape is more modern (aka bigger) than the other two and features high launch with mid-spin characteristics. Independent robot testing: pancake profile — shallow top to bottom, longer from front to back. Larger / shallower than the tour-spec siblings — designed to inspire confidence at address for slow-swing/high-HCP players. Standard gloss-black crown with clean alignment. Average tour-tier address profile — confidence-inspiring shallow head, less tour-clean than the tour-spec siblings.
Sources
Some of the reviews, lab tests and head-to-head comparisons the agentic research read while grading this club.
- Titleist TSi Fairway Woods Review - The Left Rough (forgiveness priority, MOI higher than TSi2, modern bigger head)
- Titleist TSi4 Driver, TSi1 Driver and TSi1 Fairway Wood - MyGolfSpy (50g lighter, MOI matches TSi2, sweeper-friendly)
- Titleist TSi1 Fairway pancake profile - MyGolfSpy (shallow-deep shape, leading edge close to turf, $299, lofts)
- Titleist TSi1 Driver Review - Golfstead (TSi1 line acoustic/feel: metallic pop, hollowness, firm, light)
- Titleist TSi fairway woods review: We tested them all - National Club Golfer
- TSi1 Fairway Metal - Titleist (manufacturer: deep CG, high MOI, ARC 4.0, SureFit, lofts)
- Titleist Introduces Ultra-Lightweight TSi1 Metals Line (manufacturer launch, ball speed claims)
- Titleist TSi1 Golf Clubs Review - TGW (extremely light feel, sounds great)
- Titleist TSi1 Golf Clubs - TGW (68.8mph swing → 102.2mph ball speed test data)
- TSi1 Fairway Metal - Titleist deep back CG (manufacturer)