Wednesday 06th December 2023,
The Hoop Doctors

5’10 Dunker Sir Isaac Has a Record 55 Inch Vertical Leap

December 8, 2011 – Allen Moll

With all due respect to 5‘7 Spud Webb, the smallest ever Slam Dunk champ, some of the newest baby ballers out on the circuit have been giving Spud a run for his money in being named the greatest dunk artist under 6 foot, of all time.

Of course, current OKC Thunder guard Nate Robinson, who measures 5’9, is the only 3 time winner of the Slam Dunk Contest during All Star Weekend, but he has been measured as having only a 44 inch vertical.

Even Sprite Dunk Contest Champ Terry Cournoyea, better known to everyone as “TDub”, has been known to show off an estimated 50 inch vertical for some of his amazing 720 dunks and this amazing showcase of trampoline dunks he displayed recently at Rucker Park.

But these guys have nothing on one of the newest highlight reel dunkers “Sir Isaac” White, who boasts an amazing 55 inch blastoff vertical. That’s right, Isaac stands all of 5‘10 inches tall, yet he can get nearly 4.5 feet in the air on dunks!

Isaac had a short stint with Team Flight Brothers and finished 2nd in the Sprite Dunk Contest three times. He’s now trying to get his amazing springs certified as an official Guinness World’s Record. Pay special attention to the last segment of the video as he pulls a shirt off of a 12’8 ceiling beam in a local gym.

Check out Sir Isaac’s Amazing 55 Inch Vertical:

Allen Moll has been a lifelong NBA and NCAA College Basketball fan who watches and studies games religiously, and coaches youth basketball in his native Lehigh Valley region of Pennsylvania.  Allen has also provided content to,,, CSN, Buckets Magazine, in addition to being a tenured NBA and NCAA columnist for

Like this Article? Share it!