ET grades every player prop with the reasoning shown, in plain words, and checks your slip leg by leg. You bet wherever you already bet. Then every read gets graded after the game, win or lose, and the record is public.
ET Parlays (The Lab) is a sports-betting research tool for newer bettors. It grades player props with the reasoning shown and checks your bet slip leg by leg before you place it. You bet wherever you already bet; ET is the Lab.
Three things happen here.
“Confusing formats and stats I didn't understand.” That's what a member said about the tools he tried before this one. It's the most common thing anyone tells us.
So every stat on every card carries its own explanation. Tap it and you get what the number means, what a normal number looks like, and why it matters for this bet. You don't need to know what wOBA is to use the Lab. You'll know by the end of the week.
Paste a slip from any sportsbook. Every leg gets graded against tonight's board. The weakest leg gets named, and if two legs are pulling against each other, the Lab says so.
The combined number the Lab shows multiplies the legs straight across. Treat it as optimistic. It's there so you can compare legs, not so you can trust a parlay.
Every read that makes the board gets graded after the game. Here's the record. It's read from the database when this page loads, so it can't drift.
11,630 reads graded between April 14, 2026 and September 19, 2026. MLB batter props that made the board. One season, not ten.
| Model said | Reads | Actually hit |
|---|---|---|
| 0 to 20% | 223 | 18% |
| 20 to 40% | 2,209 | 20% |
| 40 to 60% | 5,410 | 42% |
| 60 to 80% | 3,526 | 59% |
| 80 to 90% | 261 | 63% |
Bands with fewer than 30 graded reads aren't shown, because a number built on twelve outcomes isn't a number. Strikeout props are left out until their number is on the same basis as the rest.
The gap is widest at the top. When the model said 80 to 90%, those reads hit 63%. Higher grades still hit more often than lower ones. They just don't hit as often as the number says, and the further up you look, the bigger that gap gets. We're telling you that here because a grade is a read, not a promise.
Four things we tested this season failed and were reverted. They're on the About page with the date and the number that killed each one.
See the full record, the parlays, and what didn't work →Plus covers the sports most people bet. Pro adds the rest and the price tools.
| Plus | Pro | |
|---|---|---|
| MLB, NBA, NFL | ||
| WNBA, tennis, KBO, NPB | — | |
| Fútbol: EPL, La Liga, UCL | — | |
| Team Lab: moneyline, run line, totals | — | |
| Slip Check, Builder, Lab Guide |
If you go back and look at the slip after it loses, this is for you. If you've ever asked “was that a bad beat, or a bad bet?” and not liked that you couldn't answer, this is for you.
If you want to be told what to bet, it isn't. Plenty of people will do that. None of them will show you their misses.