Best Player to Only Win One Major

[MendieGK]

David Duval for me. The level of golf he played at for a few years whilst tiger was also playing was incredible.

I think people forget how dominant he was

 

[ExRabbit]

Collin Morikawa - but not for long!

Francis Ouimet might be up there.

Took him less than a year to get out of this club!

 

[Orikoru]

Took him less than a year to get out of this club!

And maybe the answer is Rahm now..

 

[Imurg]

And maybe the answer is Rahm now..

Well, he is #1 in the World again...

 

[Voyager EMH]

Mentioned earlier in a list, and by @jim8flog, but for me Tom Kite.

From 1974 to 2001 he achieved...

26 top ten finishes in majors plus one US Open win.

3 times a runner up in the Masters and one time in The Open.

(One Players Championship win and one European Open win)