The connecting record
shownNaruto · ch. 86
Gaara beat Rock Lee in Naruto.
Guy steps in after Gaara crushes Lee's arm and leg, and Gaara is declared the winner.
What each of them is ranked on
The winner · Gaara · rank 15
The Fifth Kazekage — classic
Made Kage of his village at an age when the protagonist is still failing to be promoted out of the bottom grade, which is the rank system producing two opposite verdicts on people of the same age in the same year. His sand defends without instruction from him, and by the war he is moving enough of it to shield an army rather than a person.
shownNaruto · Chunin Exam arc
His sand intercepts attacks automatically, without conscious effort. — 2001
shownNaruto · Fourth Shinobi World War arc
Commands and shields allied divisions with large-scale sand. — 2013
Beaten · Rock Lee · rank 17
classic
The purest demonstration that a total out of forty is the wrong shape of measurement. He cannot use two of the three disciplines the setting is built on, so any score that sums categories will place him beneath people he would beat — and then he opens the inner gates against Gaara and produces the most alarming thing in that entire tournament. An average of eight numbers describes a generalist. Nothing here is a generalist.
shownNaruto · Chunin Exam arc
Opens multiple inner gates against Gaara and overwhelms his defence. — 2001
What this does not settle
One fight in one work. It is the only result the record gives between these two, and it is evidence about that meeting and nothing wider — not a general matchup, not a rematch, and not a ranking of its own.
The ladder above it is argued from everything either of them has been shown doing; this page is argued from one citation.
Where the two disagree, the disagreement is the point, and it stays visible rather than being resolved by whichever of them happens to be on this page.