Squash Rules & Formats

1. The basics: court, kit and how a game works

Squash is one of the simplest sports to understand and one of the hardest to master. Two players (singles is the standard club game) share an enclosed four-walled court and take turns hitting a small rubber ball off the front wall. There's no net to clear — the whole court is in play, walls included — which is what makes it so fast and so tactical.

The court

A singles court is 9.75m long and 6.4m wide. The front wall carries three lines: the tin along the bottom (19 inches high in the standard game — hit below it and you've lost the rally, like hitting the net in tennis), the service line at 1.78m, and the out-line at 4.57m that angles down the side walls to the back. Anything above the out-line or on it is out. The floor is marked into two service boxes and a back half split by the half-court line.

The kit

A lightweight racquet, a hollow rubber ball graded by speed (a coloured dot shows how lively it is — see the scoring section), non-marking court shoes, and protective eyewear, which is strongly recommended for everyone and mandatory for juniors at most clubs. That's the lot.

How a game works

One player serves from a service box, hitting the front wall above the service line so the ball lands in the opposite back quarter. After the serve, players alternate hitting the ball to the front wall (directly or off the side/back walls) before it bounces twice. The ball may bounce once on the floor before you return it, or you can volley it. A rally ends when someone fails to make a good return — hits the tin, hits out, lets it bounce twice, or can't get to it. The big complication unique to squash is sharing one small space: you must give your opponent a fair swing at the ball and a clear path to it, which is where lets and strokes come in (covered below).

2. Scoring, concretely

Modern squash uses point-a-rally scoring (PARS): whoever wins the rally wins the point, whether or not they served. This replaced the old "hand-in, hand-out" English scoring where you could only score on your own serve — you'll still meet older players who count that way, but PARS is the standard everywhere now and it's what ClubLono uses.

Games to 11, win by 2

A game is the first player to 11 points. If the score reaches 10–10, play continues until one player leads by two — so 12–10, 13–11, 14–12 and so on. There's no upper cap, though club nights often impose a "one clear point" tie-break (sudden death at 10–10) to keep courts turning over. Winning the rally also wins you the serve, and you switch service box each time you score on serve.

Matches: best of five (or three)

A full match is best of five games — first to three games wins. A close five-gamer can run past an hour, which is glorious for the two players and tedious for everyone waiting, so most clubs shorten the format on a busy night: single games to 11, or best of three. Decide before you start.

3. Rules people get wrong

Most squash arguments are about the same handful of rules. Settle these once and your club night runs smoother.

• Let vs stroke vs no let. The biggest one. If your opponent is in the way and you couldn't have reached or hit the ball anyway, it's no let (play on, you lose). If you could have made a good return but were obstructed, it's a let (replay the rally). If you were denied a clear winning shot — typically your opponent standing right in front of the front wall blocking a sure put-away, or you'd have hit them with the ball on a straight shot to the front wall — it's a stroke and you win the point. When in doubt at club level, play a let and move on.
• You can't carry the obstruction. You must make a genuine effort to give your opponent room and a direct path to the ball. Deliberately crowding them isn't clever play — it just hands them a stroke.
• The serve must reach the back quarter. A serve hits the front wall between the service line and the out-line, then must land in the opposite back quarter of the floor (or be volleyed). A serve below the service line, on or below the tin, or out, is a fault.
• Hitting yourself or your opponent. If your shot hits your opponent on the way to the front wall, it's usually a let or stroke depending on whether it was going to be a good shot — not an automatic point either way.
• One bounce, not zero. Beginners from a tennis background sometimes volley everything; you're allowed one floor bounce before returning, which makes long rallies far more sustainable.
• It's PARS now. You score on every rally, not just your serve. The old English scoring (and games to 9) still lurks in some leisure-centre memories — agree the rules before the first serve.

4. Running a fair social session

Because only two players use a court at once, a squash club night lives or dies on matchmaking. A lopsided game is miserable for both players — the weaker one barely rallies, the stronger one barely sweats — so the goal is short, even games and plenty of rotation.

Round robin (recommended)

The default for a squash club night is a round robin: group players of similar standard, and over the session each one plays several short games (single games to 11, or best of three) against the others in their group. Everyone gets multiple games, everyone gets a fair contest, and nobody sits out for long. Across two or three courts you simply run parallel round-robin groups by standard. It's the format ClubLono uses by default for squash.

Sensible alternatives

• Winner-stays-on works for a single court and a small group, but it punishes the loser and rewards a dominant player who hogs the court — fine for a casual three or four, poor for a mixed club night.
• Timed rotations — fixed 12 or 15-minute blocks, swap regardless of score — keep courts turning over predictably when numbers are high, at the cost of a few unfinished games.
• King of the court / challenge ladders within a session add a competitive edge for the keen, but keep a separate, gentler round robin running so newcomers aren't fed to the strongest player.

Fair matchmaking

The single trick that fixes a squash night is grouping by standard and re-grouping as you learn people's level. A simple Beginner / Improver / Intermediate / Advanced split is enough to start; a running rating does it automatically. Keep the gaps small and even one-sided players will have a good evening.

5. League formats for individuals

Squash is an individual sport, so its competitive structures are built around ranking individuals, not teams. Four formats cover almost everything a club needs.

Box leagues (the club workhorse)

The backbone of UK club squash. Sort players into boxes of four to five by standard. Each box plays a round-robin over a fixed period — usually a month — with players arranging their own matches. At the end, the top one or two are promoted to the box above and the bottom one or two relegated. It's brilliant because every member always has matches to chase against people at their exact level, and the promotion/relegation gives a constant sense of progress. Score it on a simple points system (e.g. points per game won plus a bonus for the match).

Ladders

A single ranked list. You challenge someone a place or two above you; win and you swap positions. Ladders are low-admin and run continuously, but they can stagnate if people stop issuing challenges — pair one with a "play at least one challenge a fortnight or drop a place" rule to keep it moving.

Round robins

For a one-off or short competition, a straight round robin (everyone plays everyone) produces the fairest single winner. It's the format inside each box, and it's ideal for a club championship group stage or a small tournament where everyone wants several matches.

Knockouts

The classic tournament bracket for a club championship finals or an open day — quick to run and dramatic, but a single bad draw or off day ends your competition. Most clubs use a round-robin group stage to seed a knockout, so a fluke doesn't dump a strong player out in round one.

6. How ClubLono runs squash

ClubLono knows squash is a two-player, point-a-rally game, so it sets sensible defaults and does the bookkeeping for you.

• Scoring is points to 11, win by 2, matching PARS — you log the game score and standings update instantly. No clipboard, no end-of-night reconciliation.
• The default format is a round robin: on a club night players join the digital queue, and ClubLono pairs them into even games by standard, rotating across your courts so everyone gets several matches.
• Fair matchmaking is automatic. A built-in rating updates after every game, so the next round's pairings stay even without you grouping people by hand — which, in a sport this punishing of mismatches, is most of the battle.
• The host stays in control. Override any pairing, cap a game on a timer, or run winner-stays-on instead — the matching is a tool, not a referee.

Box leagues, ladders and knockout brackets — with automatic standings, promotion/relegation and a championship draw — are a Premium feature, alongside multi-club hosting, kiosk mode and cross-club stats. ClubLono is free for a single club with no time limit and no feature cliff, and the round-robin club night, queue, scoring and chat all work on the free tier; Premium (£19.99/month or £199.99/year, with a 14-day free trial) is what you add when your club is ready to run a proper league season. On any paid sessions, the platform fee is just 1% on Premium.