Letguru follows every pro singles match live, and reads it the way a coach reads body language — serve patterns, return habits, the quiet shifts before a break.
You describe the pattern you care about. The engine watches every match for you and pings the second it spots one.
Two-plus decades of match data, distilled into reusable patterns. Each one already knows what "good" looks like.
Stack any combination. The engine handles the rest. No formulas, no spreadsheets.
The engine has seen every pro singles match since 2000— 379,147 of them across ATP, WTA, Challenger and the Slams, and learned the shape of a hold, a break, a momentum swing. It doesn't predict who wins. It just knows what each pattern looks like when it shows up.
A growing library of building blocks — serves, returns, streaks, surface tells, momentum — that you stack like Lego. No formulas to learn, no SQL. Describe what catches your eye in the commentary booth; we'll watch every match for it.
When your pattern hits, you get a push or an email — usually within a minute of it happening. No social feed, no infinite scroll. Either it fires or it doesn't.
Designed for analysts who'd rather read tabular data than scroll a feed. Every metric is sourced, dated and linked back to its source point.
Every active pro singles point, normalised. Server, score state, surface and break conversion in a single row.
1st-serve %, return points won, tiebreak record. Sliced by surface and tournament round.
A growing library of primitives. Compose them into a rule and get alerted when your pattern hits — 5 tokens to activate. Keep your patterns in a private library. Run several rules? The overlap aggregator shows the days they historically fired together.
Hold, ace, first-serve and tiebreak rates for every surface — clay, hard and grass tracked independently, never blended.
Every pro singles meeting since 2000, with score progression and serve splits. Filterable by surface.
The scoreboard, player splits and head-to-head are free on every plan. Signal tokens are spent only when you activate a rule — a few tokens each. Once a rule is live, its alerts are unmetered.
Hold rates, ace rates, first-serve in %, tiebreak share — every metric shifts by surface and by court type. We track each independently, never blended.
Higher rally counts, lower hold rates, more breaks per set. Clay rewards defenders and topspin-heavy first serves.
Where most pro singles points are played. Balanced bounce, faster than clay, slower than grass. The baseline for cross-surface comparison.
Low bounce, fast court, big rewards for the holder. A four-week season — but a critical one for serve-led players.
Every tier includes the live scoreboard, player splits, surface stats and head-to-head. letguru launches free with no card required — the paid tiers below add more signal tokens and are coming after launch.
Follow the tour, dig into player and surface splits, and compose your first rules.
Everything in Scout, with more signal tokens so you can keep more rules active at once.
The largest token budget, for desks tracking many patterns across the tour at once.
The boring but important stuff. If anything's still unclear, reply to any email we send — a human reads each one.
Reply to any letguru email or write us directly — we answer as soon as we can, never with a bot.
hello@letguru.app →Bring a rule you're trying to compose, a player you can't model, or a bug. 30 min, 1:1 — drop a note and we'll book a slot.
Book a slot →A growing reference — primitives, rule grammar, API examples. The docs lab opens with launch and fills in as features ship.
Read the docs →Free while we're in preview, no card required. Paid plans arrive after launch.
