Swiss mid-week compresses BO1 and BO3 into one map pool. Pro prep should follow round-driven intersection sets, scrap-veto emergency defaults, and first-contact phase notes—not seven-way map equality.
Lead
By the middle of a Major Swiss week, the loudest argument in team comms is rarely “do we scrim tonight?” It is whether one map still deserves a full night. The format stacks BO1 and BO3 in the same calendar, while the pool bundles mid-depth maps like Ancient and Anubis with legacy defaults such as Mirage and Inferno. When hours follow comfort instead of veto economics, the ban screen repeats the same failure mode: Perm Ban on your most rehearsed map, Pick landing on a ticket you only played a handful of times.
Format pressure: rounds define the effective map subset
In open Swiss, early rounds skew BO1; elimination pressure concentrates BO3 near the cut line. For staff notebooks, that means higher map entropy in rounds one and two: opponents may Pick low-hour maps to protect rating, or Perm Ban you into long-rifle default lanes. The weekly schedule should not slice seven maps evenly. Cut it by the three-map intersection most likely this round—higher seeds often see intersection bias toward Inferno or Mirage when the other side refuses a gamble; lower seeds or must-win Swiss pushes intersection toward maps where both teams already have one BO1 sample.
Log three number classes, not “where we feel strong”:
- Defaults already exposed this round: which map showed first-minute structure in a BO1 (who takes connector, who delays smoke)—so a BO3 rematch does not get punished on order.
- Scrap tickets locked by Perm Ban: do not drill full playbook depth; keep one emergency default if forced Pick—a ten-minute run-through.
- Marginal third map in BO3: often Ancient or Anubis; notes should track first altitude trades and utility grid, not copied strat names.
Map pool: ban economics, not seven equal slots
With a fixed pool, top teams build one map as expendable leverage: in-match win rate may not peak, but veto can trade the opponent’s Perm Ban or force a weak Pick. Weaker entries invert the mistake—Perm Ban the map they could not afford hours on, then Pick into old defaults. At Majors that is not personality; it is training hours misaligned with round timing.
Prep week often produces a heatmap: opponents’ recent samples on the horizontal axis, your last thirty first-pick orders on the vertical. The intersection hot zone is what players memorize daily: who fires first in the first legal window, who eats the second-beat smoke refill. Swapping agents or gloves on C5GAME or the Steam Market only moves morale ledgers; what enters the Major notebook is first-minute accounting after veto and clutch trade order—not skin market noise.
Player notebook: tickets for the next round
Pro notes differ from pub callout sheets because every default carries conditional branches: if their BO1 used a slow default, the BO3 rematch shifts late ignite into fake-default into fast refill; if they Perm Banned your Inferno, tonight’s block moves late second-beat B-site clear timing into the Mirage connector short equivalent phase—not a brand-new map block.
During the Major, maintain two pages: Veto expectation (three most likely after three rounds) and First-contact phase (legal pixel order only). Rest days review page two; after matches, backfill actual Picks into page one so the next Swiss Ban is not gut-driven.
Once playoffs BO3 narrows the pool, training returns to polishing full default packages. Until then, hours on emergency defaults for scrap maps usually beat drilling a never-Picked full strat—the format does not tax “know all seven”; it taxes knowing the round’s set through the last beat.