What Is a Tennis Bracket Pool? The Format, Explained

You know the drill from March: someone in the group chat starts a bracket, everyone argues about upsets for two days, and then a whole month of games suddenly matters because your picks are riding on them. A tennis bracket pool is that — pointed at a Grand Slam.

Here's the whole format, from the shape of the draw to how the winner gets decided.

Start with the draw

A Grand Slam singles draw has 128 players. That's seven rounds of tennis: Round 1 (64 matches), Round 2 (32), Round 3 (16), the Round of 16 (8), the quarterfinals (4), the semifinals (2), and the final. One hundred twenty-seven matches, one champion, two weeks.

The draw is a strict bracket: the winners of two adjacent Round 1 matches meet in Round 2, those winners feed Round 3, and so on all the way up. Once the draw is published — about three days before play starts — every player's possible path to the title is fixed. That structure is what makes it perfect pool material.

The game: call the draw, then watch it score itself

In a bracket pool, everyone predicts the winners before play begins. Then the tournament does the rest: as real matches finish, every pick is graded automatically, points land on a live leaderboard, and the highest total after the final wins the pool.

No spreadsheets. No commissioner staying up to grade Round 2. No arguments about whether somebody's sheet was submitted in time. The bracket scores itself, match by match, for two weeks.

How the points work

On TennisPools, points double every round:

There's a neat property hiding in that ladder. Round 1 has 64 matches at 5 points each — 320 points available. The final is one match worth 320. Every round in between is worth the same 320-point total. So a perfect bracket scores 2,240 points, and no single stretch of the tournament dominates: grinding out the early rounds banks real points, and calling the champion swings the whole pool. Both matter.

Two formats (plus one for the precise)

Full Draw is the complete experience: you predict all 127 matches, from Round 1 through the final. Picks lock at the tournament's first ball. It sounds like homework, but a one-tap autofill starts your bracket from the favorites — then you just flip the upsets you believe in. Most people finish in a few minutes.

Sweet 16 is the short game: it skips the early rounds and starts at the Round of 16, once that field is set. You make 15 picks — the winner of each of the 8 Round-of-16 matches, then the quarterfinals, semifinals, and champion — for a maximum of 1,280 points. Because it starts about a week into the tournament, you can create or join one even after play has begun.

Bracket Scores is a variant for people who want more to sweat: alongside every winner, you call the exact set score — 3-0, 3-1, or 3-2 in men's best-of-five matches; 2-0 or 2-1 in women's best-of-three. Nail both and the pick pays half the round's points again: a correct 80-point quarterfinal call becomes 120 with the exact score.

The commissioner — the person who creates the pool — picks one format at creation. If your group can't agree, run two pools; each takes about a minute to set up.

Ties, and how they break

Along with your picks, you submit one tiebreaker: the total number of games played in the final — every game in every set, both players combined. If two members finish level on points, the prediction closest to the real total without going over wins the tie. Guess big at your peril.

What a bracket pool is not

It's worth knowing the other classic format: the Survivor pool, where you pick one player per round who must win their match, no player can be used twice, and the last member standing wins. Survivor is tense and round-by-round; a bracket is one big prediction that plays out over two weeks. Plenty of groups run one of each. If elimination-style is more your speed, the Survivor rules are worth a read.

Starting one takes a minute

On TennisPools, you create the pool, pick men's or women's singles, and get an invite code plus a share link — anyone with the link can join. Pools with up to 5 members are free; bigger pools pay a one-time $2 per member beyond the first 5, paid by the commissioner. If your group plays for money, the buy-in is entirely between the commissioner and the members — TennisPools tracks who has paid but never touches the pot. No rake, ever.

The US Open runs August 30 through September 13 this year, with the draw landing around August 27. That's when bracket season starts. Set your pool up now and your group is ready the moment the draw drops.