Acushnet Put Titleist’s New Driver Calendar in Writing. Titleist, PING and Srixon Now Sit in Three Different Windows.

Gianni Magliocco | gianni@bigswingmedia.news

Nearly 11 weeks before Titleist announced GTS, Acushnet had already told investors where it wanted the next driver launch to land.

Acushnet is publicly traded, so once a year it files a 10-K: a detailed annual report to US securities regulators. The 2025 edition, filed Feb. 27, placed Titleist drivers and fairways in the second quarter of even-numbered years and irons in the second quarter of odd-numbered years. GTS was announced May 13.

A year earlier, the same section of Acushnet’s 10-K placed both categories in the third or fourth quarter.

Acushnet confirmed the position directly. “We do not disclose future product launch dates, but our goal would be to launch metals and irons in the second quarter moving forward,” a spokesperson told Big Swing.

But Titleist’s move is part of a wider split in the longer-cycle calendar.

Srixon, after three generations aimed at the January selling season, announced its new ZXi RKT woods in September and launched them in October. PING, meanwhile, has stayed in January.

The calendar has split in two: the annual launch pattern stayed stubbornly consistent through 2026, while the established longer-cycle group became less uniform.

The Annual Calendar Stayed Remarkably Fixed

For Callaway and TaylorMade, the pattern did not vary.

Callaway announced MAVRIK on Jan. 14, 2020. Epic Speed followed on Jan. 15, 2021. Rogue ST, Paradym, Paradym Ai Smoke, Elyte and Quantum all followed in January in each of the next five years.

TaylorMade did the same. SIM, SIM2, Stealth, Stealth 2, Qi10, Qi35 and Qi4D were all introduced publicly in January.

That gives both brands seven consecutive January announcements each, 14 in total, across the period studied.

The intervals underline how fixed TaylorMade’s calendar was. Its announcement gaps were 379, 350, 371, 364, 364 and 366 days. Different names, different technology stories, same month. January never blinked.

TaylorMade’s part of that pattern is now ending. In a Golfweek Q&A by David Dusek, the company confirmed it was moving its metalwoods to a two-year product cycle, with Qi4D remaining its flagship through 2027 and the next major driver expected in 2028.

For those two brands through 2026, January was effectively immovable.

Titleist: 693, 693, 650

Titleist’s calendar tells a different story.

TSi was announced on Oct. 15, 2020. TSR followed on Sept. 8, 2022, 693 days later. GT arrived on Aug. 1, 2024, exactly another 693 days later.

693 days. Then 693 again. That is not roughly the same cadence. It is the same cadence.

The calendar movement was almost equally neat. TSR arrived 37 days earlier in the year than TSi. GT arrived 38 days earlier than TSR.

Then the pattern changed.

GTS was announced May 13, 2026, 650 days after GT. Instead of moving another five weeks earlier in the calendar, Titleist jumped 80 days.

Acushnet’s filings establish the two-year, even-year rhythm underneath those launches. What they do not explain is why the first two intervals landed exactly 693 days apart.

Titleist did not change which years it launched drivers. It changed where those launches sit inside those years.

That makes GTS more than another point in a sequence. It is the first driver launched under the calendar Acushnet had already put in writing.

The Long-Cycle Group Has Split Across the Calendar

Among the five brands examined, Titleist, PING and Srixon are the three that recorded multi-year flagship intervals during the period. They now occupy three different parts of the calendar.

PING is the counterweight. G425 was announced Jan. 11, 2021, G430 on Jan. 10, 2023 and G440 on Jan. 14, 2025. Its intervals were 729 and 735 days, essentially a two-year cycle with January preserved every time.

Srixon spent its first three generations around the same selling window. ZX was announced Dec. 7, 2020 for a Jan. 15 retail launch. ZX Mk II was announced Jan. 5, 2023 for Jan. 20 retail, while ZXi was announced Jan. 13, 2025 for a Jan. 24 launch.

ZXi RKT changed that. Srixon announced the new generation Sept. 22, 2026 and gave Oct. 16 as the launch date. The company described it as a “complete reimagination” of its metalwood lineup rather than a simple evolution of the previous generation.

Its announcement gaps had already been shortened, from 759 days to 739. The move to RKT compressed the interval much more sharply, to 617 days.

They got there differently. Srixon’s cycle had already compressed once and then compressed much more sharply. Titleist held its interval twice before breaking it.

In effect, they are passing each other on the calendar. Titleist is moving out of its customary second-half window toward Q2. Srixon, after three generations selling into January, has moved into the fall.

PING has remained where it was.

That matters because it separates product frequency from launch timing. A broadly two-year strategy does not require January. PING shows a brand can remain there. Nor does a longer cycle point manufacturers toward one obvious alternative.

The sample is deliberately narrow: five major brands, not every manufacturer in golf. But within those five, the three above are the entire longer-cycle group rather than a selection from it. TaylorMade’s newly announced two-year cycle has not yet produced its first longer interval, which is why it is treated separately here as the 2028 test.

That does not prove that longer cycles caused the divergence. It does show where the divergence is occurring. The annual launch pattern remained highly standardized through 2026. The established longer-cycle group did not.‍

Why Timing Matters

Acushnet has explained its calculation.

“The reason to move the GTS launch into June was to align with the peak selling season of golf more closely,” an Acushnet spokesperson told Big Swing.

Move the launch date and plenty else moves with it: inventory, closeouts, reorders and, eventually, revenue.

Acushnet’s filings spell it out: product introductions generally stimulate sales as the golf retail channel takes on inventory. Rapid product changeovers create a need to monitor and manage closeouts of older products at retail and in Acushnet’s inventory. And second-quarter sales are significantly affected by how much product actually sells to golfers rather than into stores, which drives reorders.

Acushnet’s second-quarter numbers show where that shift landed.

Titleist golf equipment sales, which include golf balls and golf clubs, increased 20.3% in the second quarter. Acushnet said that increase was primarily driven by higher sales volumes of GTS drivers and fairways and the latest-generation T-Series irons, along with higher average selling prices for Pro V1 golf balls.

Within that segment, golf-club sales reached $272.0 million in Q2 2026, up 42% from $191.6 million a year earlier.

The 42% increase should not be read as meaning that moving GTS to June created 42% growth. Acushnet has not said that. What the numbers do show is where substantially more golf-club revenue landed after the launch calendar moved.

Acushnet also confirmed to Big Swing that 2026 was the first year operating under the new cadence.

“The cadence changed this year for the first time with the launch benefit falling in the first half instead of the second half, that will continue moving forward based on our targeted launch dates,” the spokesperson said.

Whatever a product ultimately earns over its full life, changing the calendar changes which selling season, inventory cycle and reporting period captures the reset.

2027, Then 2028

The first test is Titleist’s, and it comes next year. Acushnet’s filing points to irons in the second quarter of 2027, a change that has not happened yet: the last two T-Series generations were announced in the third quarter, on Aug. 3, 2023 and July 10, 2025, matching the older filing.

In 2028, TaylorMade’s next flagship is expected to arrive while Acushnet’s cycle points to the next Titleist driver. Titleist has said where it wants that launch to land. TaylorMade has not publicly specified a month in the sources reviewed for this piece.

Does TaylorMade keep its next launch exactly where its previous seven landed, following PING by maintaining January on a longer cycle? Or does it land in a different month, as Titleist and Srixon now do?

For seven straight years, TaylorMade’s answer was January.

When the next driver arrives, we find out whether January was habit or conviction.

How This Was Measured

Big Swing tracked the flagship driver families launched by Titleist, Callaway, TaylorMade, PING and Srixon from 2020 through 2026, using the date on a manufacturer-issued public launch announcement as the common measure.

For most rows, that is the manufacturer’s press-release dateline or a contemporaneous publication of the manufacturer’s launch announcement. TaylorMade is the main sourcing exception: its 2020 through 2024 dates come from dated launch or first-look pages on TaylorMade’s own site because the corresponding newsroom releases could not be retrieved. Retail availability is included only when stated by the manufacturer.

One date warrants a note: some coverage of Srixon’s ZX Mk II woods appeared on Jan. 4, 2023, while Srixon’s manufacturer-issued GlobeNewswire release is dated Jan. 5. Big Swing uses the manufacturer’s Jan. 5 dateline, consistent with the sourcing standard applied elsewhere in the table.

Tour seeding, pre-orders, fittings and third-party reported retail dates were excluded.

Retail dates are manufacturer-stated only. PING did not state a general retail date in any of the three releases examined. Blank TaylorMade rows reflect dates not confirmed from an accessible manufacturer source.

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