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A research assistant for tennis that { never blinks }
It has already read every match since 2000. Ask it anything.

The better-ranked player wins set one 6–2. They take the match 9 times in 10.

That isn't a guess. In 9,857 real matches since 2021 — ATP and WTA — the better-ranked player won set one 6–2, then won the match 89.3% of the time. A first-set lead of any kind holds 81.5%. We've kept score of every professional match since 2000 — 383,061 of them. Ask what usually happens, and we'll tell you.

set 1 won 6–2 · better ranked · 2021–2026
89.3%went on to win the match
any first-set winner81.5%
example figures
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matches that fit · 61,204
31.8%
of the time the favourite still won the match
favourite wins, all matches68.4%
Across 61,204 matches between 2000 and 2026 where the favourite dropped the opening set. Losing set one costs the favourite about half their usual win share.

How the answer gets made

01
You describe the match you care about.

Everything is written as a normal sentence. Nothing to type, nothing to learn.

On clay Best-of-3 At least 3 days rest Against the top 10 + add
02
We count what happened.

Every professional match since 2000, checked against your description — with the all-matches number underneath so you can see if it's unusual.

4,118 matches fit61.4%
all matches50.2%
03
We watch today's matches for you.

Keep the question and we'll message you when a live match fits it. Either it fires or it doesn't.

letguru · now
A match on court right now fits Clay, best-of-3, well rested.
Rome · R32 · 2nd set
one player, a whole group of opponents

Ask about one player against everyone in a slice of the rankings.

Not just one rival — pick any group. Everyone in the top 10. Everyone ranked 50 to 200. Everyone ranked above them. We count every match they've played against that group, and show it next to how they do against the rest of the field.

Alcaraz vs Anyone in the top 10 On clay
vs top 10
64.7%
everyone else
86.2%
34 matches counted example figures
live
Every match as it happens
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Every number on letguru is something that already happened in a real match. No tips, no forecasts, no advice — just the record, and what it says.

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