The newest addition to the bag was a new GT1 3Tour fairway wood that debuted in the 23-year-old’s bag this week. Brennan was playing the popular low-spinning GT3 for his 3-wood, but ended up in the Tour version of GT1, which was originally designed as a game improvement club during testing this week.
Titleist Tour rep Nick Geyer said Brennan was drawn to the shallow and large profile of the GT1 and found he could launch it high off the turf without sacrificing off-the-tee performance.
The other unique club in Brennan’s bag is a new 2025 Titleist T150 3-iron in a utility build with a Project HZRDUS Black 105 hybrid shaft. While many players on Titleist’s Tour staff (and non-contracted players, too) game the hollow-bodied T250 or U505 utility irons, Brennan is one of the few on Tour who has a T150, a larger cavity-back iron, in a utility build.
The rest of his setup is more standard, including his GT3 driver, which he used to uncork consecutive 400-yard bombs on 11 and 12 on Sunday to help him pull away. For the week, he led the field in strokes gained: off the tee, picking up more than 7.6 shots, and missed just six fairways all week.
Geyer said Brennan uses the GT3 model because it gives him a lot of workability without sacrificing forgiveness. He likes to work the ball and hit different shot shapes and trajectories off the tee, rather than stick to a stock shot.
Keep reading below for all of Michael Brennan's specs.
Michael Brennan’s winning clubs at the 2025 Bank of Utah Championship
Driver: Titleist GT3 9.0˚ Shaft: Project X HZRDUS Smoke Blue RDX 70 TX
Titleist GT3 Custom Driver
GT3 – Speed-Tuned Distance & Control GT3 offers Titleist's boldest combination of power and personalization. With a speed-tuned design that allows you to precisely match performance to your most frequent contact location, you can make your biggest drives even bigger while taking total control over flight and shaping. For players with a relatively consistent impact location, GT3 offers a precisely adjustable CG Track to max out distance and directional control. Seamless Thermoform Crown A reimagined ultra-lightweight design, born from a new Proprietary Matrix Polymer. The tunable acoustic properties of this unique composite allow Titleist engineers to realize new material gains while maintaining our signature sound and feel. All wrapped in a clean look that inspires total confidence. Split Mass Construction A breakthrough in internal weighting unlocks longer drives and enhanced directional control in GT3. The Adjustable CG Track now sits closer to the face for more dynamic CG control, while additional discretionary mass is pushed to the back of the club to maintain optimal stability through impact. Advanced Aerodynamics GT3 features a new raised tail contour that represents a dramatic shift in driver aerodynamics. Previously impossible to execute due to design constraints, this advanced shaping results in a driver that swings faster while still providing optimal CG control.
To make the best, you have to use the best. Project X has teamed up with Hexcel®, a global leader in composites technology for aerospace and military operations, to utilize their HexTow® carbon fibers. Hexcel's HexTow® carbon fiber represents the highest quality aerospace-grade carbon fiber delivering superior performance on some of the world's most advanced aircraft Players are always chasing that perfect balance of feel and stability from a golf shaft. Something not too boardy, but not too whippy; the ideal amount of smooth yet stable is the holy grail. With a unique bend profile that strategically changes per flex for player optimization, and the use of Hexcel's HexTow® carbon fibers, Smoke Blue RDX is a shaft that ticks all these boxes. Smoke Blue RDX is a counterbalanced design that features a soft midsection to maximize shaft load and feel while maintaining a stout butt and tip section to keep up with all swing speeds and provide a stable feel through impact
Lift your launch window with GT1 3Tour Fairway. Featuring a Tour-inspired player profile, shallow face, low CG, and a stronger "Tour Loft," this fairway is designed to launch higher and fly farther without over-spinning. New adjustable fore/aft weights enable further optimization of ball speed, launch, and spin to achieve effortless fairway performance. Features High Launch and Exceptional Forgiveness Stronger Loft Adjustable Fore-Aft Spin Control Refined, Tour-Inspired Shaping Enhanced Sound and Feel
Irons: Titleist T150 (3), T100 (4-5), 620 CB (6-9) Shafts: Project X HZRDUS Black 105 HY TX (3), Project X 6.5 (4-9)
Titleist 620 MB Custom Irons
Read more about the Titleist 620 MB Custom Irons at Golf.com Designed for low handicaps, the MB is the modern choice for those desiring a traditional forged blade look and feel. The new Titleist 620 MB is the definition of a true forged player’s blade. The muscle-back design is perfect for players that are seeking total shot-making capabilities and an incredibly soft feel. Strategically designed CG locations deliver responsive feedback, allowing you to hit any shot you desire.
Unmatched precision meets unrivaled feel with T100 Irons. Fully forged with more aggressive grooves in the mid/short irons, T100 offers pure player's feel with improved consistency in variable conditions. Now with higher long-iron launch for optimal trajectory control in every club. Forged Player's Design Masterfully forged into a pure player's design that offers precision control and buttery feel. Superior Flight and Stability Split High-Density Tungsten produces optimal CG with remarkable stability for precise shotmaking. Consistent Speed & Spin New VFT technology and progressive groove design for consistent spin and speed across the face in variable conditions. Elevated Long-Iron Launch Lower CG and a new muscle channel help improve peak height and carry.
The K Grind has a long-standing place in the Vokey lineup, originally crafted by Master Craftsman Bob Vokey with input from top players. Known as the ultimate bunker club, its wide flange and subtle camber create a forgiving, smooth surface, ideal for sand shots. The K* Grind represents an evolution of the original K, designed in response to feedback from today's players who seek versatility on firmer courses. It's based on the Low Bounce K, with modifications like heel-to-toe relief for open-face shots and pre-wear to reduce digging on square-face shots. This new design allows the club to sit closer to the ground when opened, improving greenside performance while retaining the reliable bunker play of the original K Grind. The K* Grind is available in 58° and 60° lofts (RH only) with a Raw finish.
