Major's format compresses the map pool, forcing teams to prioritize which maps to keep, which to discard, and which to gamble on. This article breaks down the chain from format to map pool to preparation, revealing how pros allocate practice time and attention in the final 48 hours.
The Major format is often seen as mere background: Swiss stage, BO1, BO3, playoffs. Fans remember the scores, but players remember something else—the map pool isn't seven maps; it's a hand of cards you can discard, keep, or bluff with. This week in the practice room, the phrase I heard most wasn't "how do we play this map" but "is this map worth playing right now." Let's break down that chain.
1. The Format First Compresses the Map Pool
BO1 and BO3 demand completely different things from the map pool. In BO1, breadth is a burden: you prepare seven maps, but your opponent will only wait for you on one, and the other six get diluted practice time. So many teams in the early Major stages deliberately narrow their pool, grinding three to four maps to "eyes-closed" comfort, while the rest get only a default opening as a fallback after bans.
In BO3, depth becomes insurance. You don't need to be strong on every map, but you need a "won't collapse" floor on each—a stable default, a defensive half that can drag to 8-4, an attacking start that doesn't gift the first kill. In my player notes, I categorize maps as "floor maps" and "ceiling maps": floor maps absorb bans, ceiling maps steal match points.
The Swiss 0-2 and 2-2 groups are different again. In 0-2, the BO3 is do-or-die; coaches often bring out ceiling maps early because a loss means elimination. In 2-2, teams prefer floor maps, betting the opponent blinks first. This isn't mysticism—it's the expected-value structure the format imposes: the closer to elimination, the more variance is worth.
2. The Discard Order Is the Core Output of Preparation
Preparation isn't two hours on each of seven maps; it's first setting a discard order: which map we absolutely won't play, which we'll only play if the opponent bans a certain map, which we're willing to leave open as bait.
Take the current common pool: Anubis and Ancient have high mid-round reallocation costs, so many teams put them early in the discard sequence; Mirage and Inferno have stable floors, making them good floor maps; Nuke and Train are vertical maps that depend on having dedicated outside/upper players. Once the discard order is set, practice follows: first the two maps we'll definitely play, then the one that might be released, and finally half a day on default openings for fallback maps.
For players, discard order affects attention allocation. Practicing a map you know you probably won't play at the Major naturally gets half a notch less focus, and that half-notch pollutes the data—coaches looking at scrim win rates might misjudge a "not trying" map as a "can't win" map. The mature approach: no high-intensity scrims on discard maps, only walkthroughs of defaults and utility lines, saving real competition time for core maps.
3. What Player Notes Really Record
Many think player notes are about tactics, but they're more about "trigger conditions": how we respond if the opponent forces up on the second round, what we run in the round before a timeout after conceding three straight, where the enemy AWPer opens. These don't go on the formal playbook but get reviewed repeatedly in the final 48 hours.
My own notes are three columns: map, round type, one-sentence trigger. For example: "Ancient / our first full buy after eco / smoke B tunnel first, then decide whether to rotate." Major schedules are dense; players don't have time for long documents. Three columns of short sentences can be scanned in two minutes between matches.
One overlooked point: the version feel of the map pool. The Major build isn't always identical to online qualifiers, so teams note "how this map feels in the current version" separately—smoke volumes at certain spots, vision at certain angles. These aren't patch data but feel accumulated in practice; notes only record conclusions, not derivations—derivations are discussed in review, notes keep only the executable line.
Format, map pool, preparation—they form a chain: format decides how many cards you keep, map pool decides which you discard, preparation decides where you spend time. Major wins and losses often don't happen in the match but in those 48 hours before, where someone sorts their cards more clearly.