How tall is John Isner

John Isner's Height

6ft 9.75in (207.6 cm)

American professional Tennis player. He has been described both 6ft 9 and 10 during his career.
I'm a tall guy; I'm 6'10". I've done a good job putting some meat on my bones since my freshman year of college. It's taken a lot of work. I was just under 200 pounds my freshman year; I was 6'8" and 198 pounds. Now I'm 6'10", 238. I could get heavier if I just ate a little bit more, but for my playing weight, I like being between 235 and 240. But back in college, I was a tall, goofy, underdeveloped kid. At 19, I didn't have a hair on my face. When I was 20, I looked 14. I feel I've grown out of that stage. --

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Add a Comment 27 comments

Average Guess (20 Votes)
6ft 10.06in (208.4cm)
Jordan said on 16/Sep/17
he doesn't look 238 pounds because hes so tall, that is why people guess me at like 10-15 kilos less than I actually am, taller people hold weight differently.
Yup2817 said on 22/Aug/17
Easily appears to be 6'10" to me, he's a gigantic, lanky guy with super long legs. However his Wikipedia page lists him as 6'11" now? Has he grown another inch?
Junior said on 16/Aug/17
He was 6'9.75" i believe it but he doesn't look 238 pounds as he mention. Maybe closer to 230 or 228 pounds claiming a 10 pounds more to give a buff guy impression.
Chris said on 17/Jul/17
Yeh it does seem odd but does seem right if you see photos of them saw one from early college days. Apparently he was only 6"3 going into his senior year of high school as well.
Arch Stanton said on 16/Jul/17
So his father only 6ft too? We were thinking that he was probably 6'6 or something! Interesting, you'd think 6'5 would be more what he'd be like his brothers with a mother that tall, but maybe on his father's side ended up getting a stronger tall gene somewhere as well.
Chris said on 16/Jul/17
I wouldn't have thought under 6"10 looks very near karlovic hard to tell a difference at times. I would think a fraction over rather than under at times he can look gigantic. I heard from an article that both his parents were both a fraction under 6"0 and that his older brothers are both 6"5.
Reece said on 8/Jul/17
He would probably be closer to 6-11 out of bed. Maybe 6-10 1/2
MD said on 8/Jul/17
Anyone see the thing that made the media about Isner standing next to Dudi Sela? I was a bit annoyed they kept refering to Sela as 5'9" (without qualifying it as a listing) when there is clearly more than a foot difference between the two.
even said on 7/Jul/17
6 foot 10 after he wakes up
6 foot 9 when he goes to sleep
Reece said on 29/Jun/17
Del Po seems over 6-6 he is clearly taller than Cillic. Could even be 6-6.5:6-7
anon said on 28/Jun/17
Isner does look 6'10, Yh He is babyfaced even tho is 32 now, glad you have added tennis players on here, Marin Cilic looks 6'6 too similar to Del Potro.
Greg said on 27/Jun/17
wow that's crazy wish I had some of his height, of course not 6'10, but somewhere in the 6' range would be nice. Wonder how tall his parents are.
S.J.H said on 27/Jun/17
I feel short at 6'7 compare to them.. Lol

Click Here: Giant tennis players: John Isner, Ivo Karlovic and Reilly Opelka

Click Here Can't believe Reily this boy spurt out and hit over 6'10. His 20yo might have stop growing.

Click Here: Reily look about an inch over Isner now.

Click Here
Andy H said on 26/Jun/17
if you look at him next to 6'8 listed Kevin Anderson who himself says he's 6'7.5 barefoot Isner is easily 6'10
Ian from Auckland said on 25/Jun/17
I've followed John Isner's tennis career for quite a few years - interestingly the first time I saw him play (maybe about 6 years ago) he was listed as 6'8" - seen him a few times since and he's definitely taller now. He clearly kept growing through his early-mid 20's!
Allie said on 23/Jun/17
Facially he actually looks pretty cute and kind of on the younger side for someone that tall and in his early 30s. I can believe 6'10.
Tunman said on 23/Jun/17
Del Potro is more likely someone who is the textbook of a solid 6'6 probably would measure somewhere between 198 and 198,5.Well Isner looks like 3.25 to 3.5" taller maybe 6'9.5" is better but comfortably clears 6'10 earlier possibly even 6'11 out of bed or very close to it.
Arch Stanton said on 23/Jun/17
Nah andy, Click Here I wouldn't argue a solid 6'10 with Del Potro. Granted you could argue 6'6.25-5 for Potro but he looks somewhere in 6'9 range there.
heightchecker34 said on 22/Jun/17
Interesting height selection. Once you get to those heights, at least in my humble 5'9 opinion, it is pretty tough to discern what the correct height listing is. He could say anything between 6'9-7'0, and I'd probably believe him. Unless you have people who are of similar height standing next to each other, or of course a stadiometer, its virtually impossible since you probably don't encounter people of that height on a everyday basis. Maybe if you were in the 6'6-6'7 area, then you could probably make an estimate. He is a literal giant on the tennis court, in every sense of the word, along with Dr. Ivo Karlovic, when you dwarfing legit 6'6 guys, that's saying something. However, unlike the NBA, there is really doesn't seem to be advantage, as I have stated before, the perfect tennis height seems to be between 6'0-6'2.
Andy H said on 22/Jun/17
He's a solid 6'10 if i've ever seen one!
Rampage(-_-_-)Clover said on 21/Jun/17
A weak 6ft10...nice. His mum is probably at least 5ft11. His dad is apparently running for congress in North Carolina. No photos of them together though...and actually none of the father standing up with others. Couple of portrait photos and that's it. I'm guessing there's maybe some estrangement
Christian-196.5cm (6ft5 3/8) said on 21/Jun/17
SJH is right he's maybe 6'9.5" compared to legit 6'6" Juan del Potro.
Reece said on 21/Jun/17
He does look 6-10 to me. No less than 6-9.5 certain imo.
Arch Stanton said on 21/Jun/17
Click Here

Isner with his mother, looks small haha, but in reality she doesn't look far off 6 ft though we can't see footwear. With a guy like Isner you'd guess that he probably had a 6 ft 6 or 7 father as well, that would explain his height.
Editor Rob: yeah his Mother looks on the tall side.
S.J.H said on 21/Jun/17
I believe he is 6'9.5
Arch Stanton said on 21/Jun/17
He still looks very young in the face mind, could pass for 22 still.
Arch Stanton said on 21/Jun/17
Thanks, this listing has to be a first! Yes it looks right with Murray, with Del Potro you could argue 6'9.5 but then I think Del Potro is a little over 6'6 flat. Obviously clears 6'10 earlier in the day but his lowest is probably a little under. At times he can really look massive, looks obviously taller than even Crouch and Osman types Click Here
Editor Rob: it would be great one day to have a listing for every height from 6ft to 7ft.

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