Explainer · evergreen
How the PDC World Darts Championship works: dates, format and the double-out finish
In one line: Ally Pally, the December-to-January schedule, sets and legs, and why every checkout ends on a double — the tournament's mechanics, dated for 2026-27.
The PDC World Darts Championship is the biggest party in darts and the most compressed: three weeks of sessions at Alexandra Palace in London, running from December into the first days of January, with the final fixed on 3 January 2027 for the 2026-27 edition. If you have only ever seen the walk-on songs, here is the machinery underneath them.
Where and when
The tournament is played at Alexandra Palace — “Ally Pally” to everyone in the room — in north London, an event that has outgrown every other venue the sport has tried. The 2026-27 edition opens in mid-December 2026 and ends with the final on Sunday 3 January 2027. One honesty note worth keeping: ticketing and schedule pages disagree on the opening session — Eventmasters lists Friday 11 December 2026 as the first day, while the darts calendar guides list 10 December. The session-by-session schedule is published by the PDC closer to the event; treat mid-December as the opening and 3 January as the fixed finish. There is a Christmas break in the schedule (the 2026-27 dates place it around 24-27 December) and play resumes across New Year.
The format, in two ideas
Matches are played in sets, and each set is made of legs. A leg is a race from 501 down to exactly zero — and the last dart of every leg must land on a double, which is why the bull counts as double 25 and why the checkout trainer on this desk exists. Win the required number of sets and you advance; the required number grows round by round as the field shrinks, so the final is a long-form test and the early rounds are closer to sprints. Seeded players enter in later rounds; the rest of the field fights through from the opening days, which is why a qualifier making the second week is a story every single year.
Why the double-out rule is the whole sport
Football punishes you for missing; darts punishes you for not finishing. The double-out rule turns every visit into arithmetic under pressure: 32 left is not “32 points” but a single dart at double 16, and 170 is treble 20, treble 20, bull because the rule forces the last dart onto a double. Our desk covers this two ways: the explainer on why darts starts at 501 for the history, and the darts checkout trainer for the working itself. Numbers with no three-dart checkout — 1, 159, 162, 163, 165, 166, 168, 169 and everything above 170 — are the ones players try hardest to avoid leaving.
The room, honestly
Ally Pally is part of the sport now, and the room changes the matches. Two sessions a day mean players walk out to different crowds — an afternoon family session and a fancy-dress evening one can feel like different tournaments, and the schedule makes that a competitive factor, not just atmosphere. The famous walk-ons are chosen by the players themselves and are one of the few places in elite sport where a hobby becomes a weapon: a crowd singing a wrestler’s theme is a genuine handicap for an opponent. The world championship keeps it because the sport understands that the room is the product — televised darts is a spectator sport with a scoreboard, not the other way around.
Reading the 2026-27 edition like a regular
Three dates frame the story: the draw (watch who lands in the defending champion's quarter), the Christmas sessions (fancy-dress crowds and short turnarounds), and 3 January (the final). The prize structure and full field are confirmed by the PDC in the autumn before each edition; when they publish, check the official pages rather than second-hand tables. What does not change year to year is the shape: a marathon at Ally Pally, a race to zero, and the last dart always on a double.
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