Back in early September, Titleist officially launched its new lineup of TSR drivers – including the TSR2, TSR3 and TSR4 models – to the public.

‘What happened to the TSR1?’ you may have been thinking.

Just because Titleist didn’t include a TSR1 as part of the initial launch doesn’t necessarily mean that one is never coming to market. If you remember, we’ve seen the delayed release before.

Last generation, Titleist launched its TSi2 and TSi3 drivers in October 2020, but the company didn’t officially come out with the TSi1 and TSi4 drivers until February of 2021. As a reminder, the TSi1 was a lighter weight design – about 40 grams lighter overall – that was built for “moderate speed” golfers who swing the driver less than 90 mph.

This time around, Titleist launched the TSR2, TSR3, and TSR4 drivers all at once in September, but the family was glaringly missing a TSR1. Was Titleist discontinuing the “1” model, or just going with a staggered release?

Well, LPGA Tour player Nelly Korda began using an unreleased TSR1 prototype driver in October 2022, and now, GolfWRX has spotted a TSR1 prototype driver on the PGA Tour, too.

Zac Blair showed up on Tuesday at the 2022 Cadence Bank Houston Open with a Titleist TSR1 9-degree driver to test.

On Wednesday, I caught up with Blair to get his thoughts on the unreleased TSR1. Here’s what he had to say:

“I just got it yesterday, so I haven’t had a lot of time to mess around with it, but the numbers seemed pretty good and it sounds good,” Blair said. “It has a little different look than the TSi1, but it seems pretty sweet. The head shape is a little different than the TSi1, but other than that, it seems really nice.”

Last year, I took the photo on the left of the Titleist TSi1 driver for golf.com, and this year, GolfWRX photographer Greg Moore took the photo on the right of Blair’s new TSR1 (he’s unlikely to play the driver this week, as he needs more time for testing and dialing the driver in).

While the photos aren’t taken from the exact same angle, what differences do you see in the shaping from address?

To see what GolfWRX Forum members are saying, click here. 

We don’t have any more information from Titleist regarding the TSR1 driver just yet, unfortunately, so we’ll just have to wait and see what happens for now.