JUMBOMAX® TOUR PROS
LIV GOLF
BRYSON DECHAMBEAU
Bryson Dechambeau is a 10-time PGA Tour and European Tour winner and the winner of the 2020 and 2024 U.S. Opens.
As an amateur, Bryson was the Low Amateur at the 2016 Masters and the winner of both the 2015 NCAA Individual Championship and the 2015 U.S. Amateur. By winning both titles in the same year, Bryson joined an elite group of golfers, including Tiger Woods, Phil Mickelson, Jack Nicklaus and Ryan Moore, as the only players to win the two biggest events in amateur golf in the same year.
Bryson currently plays JumboMax Tour Series™ XL grips on his clubs, as well as the JumboMax JMX JumboFlat™ 17 putter grip.
PGA TOUR Champions
RETIEF GOOSEN
Retief Goosen is a seven-time PGA Tour winner and a two-time U.S. Open Champion (2001, 2004). The South African won the European Tour’s Order of Merit in 2001 and 2002 and was inducted into the World Golf Hall of Fame in 2019.
Retief currently competes on the PGA Tour Champions, where he’s continued to rack up wins. He plays JumboMax Tour Series™ swing grips (XS) on woods, irons, and wedges and a JumboMax JMX JumboFlat™ 17 putter grip.
ladies European Tour
Cara Gainer
Cara Gainer turned pro in 2020 and won the Ladies European Tour Access Series (LETAS) Order of Merit and Rookie of the Year in her first season. As a amateur, Cara claimed the prestigious England Women’s Open Match Play in 2017.
PGA TOUR University
Ian Gilligan
Ian Gilligan is a standout senior at the University of Florida and rising star in the world of golf. His impressive achievements include victories at the 2024 Western Amateur, 2024 Southern Highlands Collegiate, and 2025 Australian Master of the Amateurs. A lymphoma survivor, he exemplifies overcoming challenges and achieving greatness. His success extends to the PGA Tour, highlighted by a top-16 finish at the 2024 Shriners Children’s Open. Ian relies on JumboMax’s JMX UltraLite swing grips (size medium) and a prototype putter grip to elevate his game.
Asian Tour
Manav Shah
Manav Shah has earned eight professional victories across multiple tours, highlighted by the 2022 PGA Tour Latin America Quito Open and the 2024 APGA Juneteenth Classic. He’s a veteran of PGA Tour Canada, PGA Tour Latin America, and the Korn Ferry Tour, and he is now entering his second full season on the Asian Tour. Shah was a standout at UCLA, where he was named to multiple All-Pac-12 Teams and All-Pac-12 Academic Teams.
WHY HE PLAYS JUMBOMAX
“I play Tour Series (Standard Jumbo) because it gives me incredible feel and stability. It helps me deliver a quieter clubface with consistent grip pressure—all things that improve dispersion. After having surgery on my left wrist, this grip still allows me to train as hard as I want, pain-free. I also love my JMX Pistol Pro putter grip.”
Gira de Golf Profesional Mexicana
Derek Trofimczuk
Derek Trofimczuk is a professional golfer who currently competes on the Gira de Golf Profesional Mexicana. He has one professional win.
WHY HE PLAYS JUMBOMAX
"From a feel standpoint, the size of the grip makes the golf club much more comfortable to hold. As far as performance goes, JumboMax grips help me keep the face slightly more open at impact with a shallower angle of attack. This results in the ball starting a touch more right with less curvature, higher launch with a slight increase in spin. As a natural drawer of the golf ball, I see this shift in performance characteristics to be very beneficial."
PGTI Tour, China Golf Tour
Joshua Seale
Joshua Seale is Uganda’s top-ranked professional golfer and has more than a decade of experience on tour. Since turning pro in 2014, he’s held a tour card every season, competing across international circuits including the PGTI Tour and the China Golf Tour. A proud representative of Ugandan golf, Joshua is aiming to qualify for the next Olympic Games — building on a career milestone that includes his historic win at the 2016 Uganda Open.
WHY HE PLAYS JUMBOMAX
“I made the switch to JumboMax for the feel — and I stayed for the performance. The grips help me square the clubface more consistently and have added a few miles per hour to my swing. That combination of control and speed is tough to beat. I play the Tour Series Large on everything from driver through lob wedge, and I use the Split Grip SG1.0 on my putter.”
JUMBOMAX INSTRUCTORS
PGA Professional
BRADEN SHATTUCK
Braden Shattuck is a PGA Professional who has qualified for the PGA Championship in his first two attempts via the PGA Professional Championship (2022, 2023). He's currently a full-time instructor at Rolling Green Golf Club in the Philadelphia section. After suffering a career-threatening back injury as the result of a car accident as a mini-tour player, Shattuck had to step away from the game for two years to allow his body to heal. He has since rebuilt his swing from the ground up using JumboMax grips and is once again competing at the highest level.
6-Time European Tour Winner
SIMON DYSON
Simon Dyson is an English professional golfer. He played on the European Tour from 2001 to 2017, having played on the Asian Tour in 2000 and winning the Order of Merit. He had six wins on the European Tour, including the KLM Open three times. After struggling with a wrist injury he retired from competitive golf in early 2019 to focus on teaching.
PGA Tour Coach
MIKE SCHY
Mike Schy is a PGA Teaching Professional, long-time coach, caddy, and teacher. His students include PGA Tour winners, as well as top-rated junior and college golfers.
He was a member of the Fresno State Men’s Golf Team (1979-1984) and later joined the Bulldogs as a volunteer assistant coach.
Mike is currently the owner & operator of the Mike Schy Golf Performance Institute at Fresno’s Dragonfly Golf Club. He is an expert in the latest golf instruction technology. He has been a PGA Teaching Professional Member since 1990 and is a master club and putter fitter.
JumboMax Long Drive
World Long Drive
MARTIN BORGMEIER
Martin Borgmeier is the 2022 World Long Drive Champion. He first made the switch to JumboMax Grips in 2022, using the JMX UltraLite™ (XS) to win his first World Championship.
He recorded a 426-yard drive in the finals to defeat fellow Team JumboMax member Bryson DeChambeau.
WHY HE PLAYS JUMBOMAX
"The moment I switched to JumboMax, I instantly had a totally different awareness of my club face. The tackiness of the grip and the perfect size for me (XS) feels like I can apply more force to the handle and gain more control at the same time. This and the additional confidence it gave me, led to winning my first event after I put JumboMax in my bag. And this event was the World Long Drive Championship 2022."
World Long Drive
JUSTIN JAMES
Justin James is a professional long driver and the 2017 World Long Drive Champion. He entered golf full time in 2014 after spending several seasons in the Toronto Blue Jays Baseball Organization.
Justin is also an avid fitness coach and golf instruction. His father, Gerry James, is a PGA Professional and a two-time Masters World Long Drive Champion.
World Long Drive
Phillis Meti
Phillis Meti is the reigning Women’s World Long Drive Champion and a five-time winner of the event (2006, 2016, 2018, 2022, 2024). She was the youngest WLD Champion in the History of Long Drive (19 years and 3 months) and is the world record holder for a woman's longest drive (414 yards). She uses JumboMax Zen Lite Standard Oversize grips on her clubs.
WHY SHE PLAYS JUMBOMAX
“JumboMax Grips fill my hand perfectly and I have much more stability through the ball, which is something I have always struggled with. I’m super excited to be using these grips in competition to gain an edge!”
World Long Drive
BRYCE VERPLANK
Bryce Verplank is a two-time winner on the World Long Drive. He is the nephew of five-time PGA Tour winner Scott Verplank, who currently competes on the PGA Tour Champions.
Bryce’s athletic accomplishments include being a college pitcher at the University of Texas, where he was an academic scholar and was a part of the 2018 team that earned a trip to the College World Series.
Verplank currently uses JumboMax JMX Zen Lite (Medium) swing grips.
WHY HE PLAYS JUMBOMAX
“I originally switched to JumboMax in 2022 after having wrist surgery. Little did I know that this change would not only keep me healthy but make me a better ball striker and gain more speed. With the options JumboMax provides, I was able to find a grip that increased my ball speed by 3-5 mph on average. JumboMax has helped improve my golf game in every aspect possible and I wouldn’t be where I am today without them!”
JUMBOMAX JUNIORS
High School Graduation Year: 2027
Ashley Shaw
Ashley Shaw (Arizona) was the winner of the inaugural UNDERRATED Curry Cup (2022), a series of regional junior golf events launched by four-time NBA Champion Steph Curry. Shaw shot rounds of 70-72-70 (4-under par) to claim the title.
Shaw is one of the top-ranked female junior golfer in her age group and has a driving distance over 300 yards.
High School Graduation Year: 2024
Dean Upholzer
Dean Upholzer (Strongsville, OH) is entering his senior year as a 3-time Scholar Athlete, 3-time All-Conference, and 2-time First-Team All Northeast Ohio District awards winner. He was the 2021 Northern Ohio Junior PGA Player of the Year and the 2022 Greater Cleveland Conference Player of the Year.
He has 12 individual first-place finishes in D1 high school golf. He has also earned 12 first-place finishes outside of high school and 25 top-ten finishes including the 2023 Ohio Junior Championship and the 2023 Hudson Junior Invitational.
Dean has verbally committed to play for Miami University upon graduation.
WHY HE PLAYS JUMBOMAX
JumboMax has been Dean’s grip of choice for four years. Because of the vast size and weight options that JumboMax has throughout their line, there is always something that fits his needs.
“With the amount of range sessions, practice rounds, and tournament rounds that I play, I was going through grips on a monthly basis. Since switching to Jumbomax, I can go a full year on two sets of grips… that is amazing! The best part is, the more you use them, the better they feel.”
High School Graduation Year: 2025
Jayk Altic
Houston-native Jayk Altic has verbally committed to play college golf at the University of Houston. He has left an indelible mark in the junior golf circuit, accumulating a remarkable tally of 12 wins, 48 top-5 finishes, and 62 top-10 finishes over 93 events. Jayk finished T4 at the 2024 AJGA Stan Utley and Mid-America Youth Golf Foundation Junior Championship after shooting an opening round... just a few shots off the course record. He currently has fully exempt status on the AJGA tour for the remainder of his junior golf career. Other notable achievements include winning the 2023 Texas Mexico Cup (16-18 Division), the 2023 STPGA Jr. Tour Spring Championship, qualifying for the 2023 & 2024 Texas Junior Amateur, and qualifying for the 2024 Greater Houston City Amateur Championship (1 shot off medalist in his qualifier).
WHY HE PLAYS JUMBOMAX
"The shape and texture of JumboMax Golf Grips allow me to control the club better. I used to have a lot of hand cramps because I had to squeeze so much with standard grips. Now, with JumboMax, I can apply less pressure to the grip while still having control. The technology is truly incredible."
High School Graduation Year: 2025
Steele Fischer
Steele Fischer is one of the longest-hitting high schoolers in North Carolina. He was named to the Tri-TAC All Conference Team in 2022 and 2023, and he was also MVP of his high school team (Salem Baptist) in the same years. He has multiple junior golf and high school wins on his resume.
WHY HE PLAYS JUMBOMAX
“The reason I play Jumbomax Grips is for the control you have on every shot. These grips have made my ball flight way more consistent without losing any yardage. I struggled before with over drawing the ball, but these grips have helped me keep the clubface square at impact.”
Steele posts some very impressive trick shots to his YouTube channel. Check it out below.
ALSO ON TEAM JUMBOMAX
Paul Holtby: Winner of Golf Channel’s Big Break IV in Scotland. PGA Instructor. Certifications: Paul became a PGA Class A member in 1997 and has been a member of the Titleist Players Advisory Staff since 1988. He has earned the Titleist Performance Institute (TPI) Golf Professional Fitness Instructor (GPFI) Level One and Level Two Certifications in 2008 and Level Two Bio-Mechanics Certification in 2009. He’s also held the title of a Titleist Certified Advanced Club Fitter since 2007 and became a Certified Putting Instructor through Frankly Golf in 2011. Paul has been nominated as “Teacher of the Year” for the last five years in the NC-SCPGA. He earned the title of“Teacher of the Year” in 2010. He has also been nominated for “Teacher of the Year” in the SCPGA for numerous years.
Bill McKinney: PGA 2011 SCPGA Metro Chapter Teacher of the Year, 2012 Horton Smith Award Winner. California’s only Master Instructor of both The Golfing Machine and Impact Zone Golf.
Michael Furrh: Golf Professional, Instructor and Trick Shot Artist. Michael turned pro in 1997 and began playing JumboMax Grips in 2010. Michael holds 25 World Records including 5 Guinness World Records for the Longest Usable Golf Club. On January 2020, Michael Furrh along with Mike Rausch and First Tee - Ft. Worth and set another Guinness World Records swinging a 51 foot 1-inch driver using JumboMax Grips in multiple locations. Michael has raised over $852,000 for Texas charities with his trick shot shows feature JumboMax Grips on all Trick Shot Clubs.
Danny Mulhearn, PGA: Head Golf Professional, Glen Oak Country Club, Glen Ellyn, IL.
Otis Birdsong: Former NBA Player, Hall of Famer.
Don “The Human Bowling Ball” Nottingham: Former Baltimore Colt, Miami Dolphin, and NFL Superbowl Champion.