Book, easy.
Book Three, chapter VIII "The Road to
Isengard" in "The Two
Towers", right after the first paragraph:
"... and beside them walked
Gimli the
dwarf. He had no
helm, and about his head was a linen band stained with blood; but his voice was loud and strong.
'Forty-two, Master
Legolas!' he cried. 'Alas! My
axe is notched: the forty-second had an iron collar on his neck. How is it with you?'
'You have passed my score by one,' answered Legolas. 'But I do not grudge you the game, so glad am I to see you on your legs!'"
Book anything of the sort at the
Pelennor Fields: I'm pretty certain there was no such comparison. I'll leave it as a challenge for someone to come up with the quote that disproves me. 😜
Film: of course there's the "Legolas superhero" scene where he shoots
three arrows at once into the back of the head (or neck) of the Mûmak (he used two to take down the
Troll in the chamber of Marzabul in
Moria, in "Fellowship" the film), then surfing down the trunk to meet Gimli indignantly snorting "its still only counts as one!". But even here in the film, I don't believe they ever got around to comparing scores ...
I'd like to know the opinion of a competitive
archer, preferably an Olympic medalist, on how likely it is in the real world to try and shoot three (or even two) arrows at a time from a single
bow and not make a hopeless fool of oneself (long ago, I had archery in school sport).