CS2 BO3 Veto Trainer
Play a full best-of-three veto over the 7-map Active Duty pool. You ban and pick first; a simulated opponent answers using the pick and ban rates professional teams actually recorded, and every choice you make is explained with the figures behind it.
See also: CS2 tools, build your crosshair, pro settings, lineups, guides, maps, console commands, pro crosshair codes.
This is a description, not a strategy. Every number here reports what a sample of tracked professional teams did with each map. Those teams have their own rosters, anti-strats and permabans, and none of that is your team. A map the field bans constantly may well be the right map for you to pick.
The professional aggregation is temporarily unavailable, so there are no pick or ban rates to explain your choices with and the simulated opponent has nothing to act on. The veto order and the map pool below are still correct.
The order you are playing
A best-of-three consumes three maps — one pick each, plus the decider — and bans remove the rest. With 7 maps in the pool that is 4 bans, split around the two picks:
- 1You banremoves a map from the board
- 2Opponent banremoves a map from the board
- 3You pickchooses a map the series will play
- 4Opponent pickchooses a map the series will play
- 5You banremoves a map from the board
- 6Opponent banremoves a map from the board
- 7Deciderthe one map nobody removed
Side selection on a map normally goes to the side that did not pick it, which is why teams sometimes leave a strong map in the pool for the decider rather than spending their own pick on it. The trainer does not model side selection.
What the tracked teams did with each map
These are the only figures the simulated opponent uses. Pick rate and ban rate are the unweighted mean across the sampled teams — “the average tracked team spends this share of its picks or bans on this map”. Round win rates are pooled over those teams' rounds; because a tracked team's opponent is not always tracked too, CT and T need not sum to 100.
| Map | Avg ban rate | Avg pick rate | CT rounds won | T rounds won | Team map results | Teams |
|---|---|---|---|---|---|---|
 | no data | no data | — | — | — | — |
 | no data | no data | — | — | — | — |
 | no data | no data | — | — | — | — |
 | no data | no data | — | — | — | — |
 | no data | no data | — | — | — | — |
 | no data | no data | — | — | — | — |
 | no data | no data | — | — | — | — |
Mirage, Inferno, Dust 2, Anubis, Ancient, Nuke, Cache have no tracked row in the current sample. Rather than assign a plausible-looking rate, the opponent model leaves them out entirely — the map stays on the board, because it really is in the pool, but nothing the trainer says about it is derived from data.
How to read the explanations
After each of your choices the trainer states the map's average ban rate and pick rate, its rank on whichever of those two figures your action was about, and the sample behind it. Where your choice differs from the map the field removed or took most often, it names that map and both percentages so you can see the size of the gap yourself. It never blends the numbers into a single score — a “map strength” figure would hide which measurement actually moved, and there is no honest way to weigh a ban rate against a round win rate.
Rankings on this page are always on one named figure at a time. “Most banned” means highest average ban rate across the sampled teams and nothing else.
Two things the trainer knowingly does not model: side selection, and any specific opponent. If you want a veto priced between two named teams, the veto simulatordoes that with each team's own record; for the underlying per-map figures see map meta stats and the map comparison table.
Frequently asked
- How does a best-of-three CS2 map veto work?
- Over the 7-map Active Duty pool the order is: the first side bans, the second side bans, the first side picks map one, the second side picks map two, then each side bans once more and the single map left over becomes the decider. The trainer puts you on the side that bans and picks first.
- What drives the simulated opponent?
- The average pick rate and average ban rate for each map across the professional teams in our sample. Those figures are temporarily unavailable, so the trainer cannot explain choices right now.
- Does the trainer tell me the correct ban?
- No, and it deliberately never claims to. It reports what tracked professional teams actually did with each map — which is a description of a field of teams with their own rosters, preparation and permabans, not a recommendation for your team. A map the field bans constantly can still be your best map.
- How big is the sample behind these numbers?
- Sample sizes are published per map in the table on this page whenever the professional aggregation is available.
- Which map do professional teams ban most?
- The most-banned map is whichever has the highest average ban rate in the table on this page; the figure is generated from live professional data.
- Why is the pool exactly these maps?
- The veto uses the Active Duty pool — Mirage, Inferno, Dust 2, Anubis, Ancient, Nuke, and Cache — which is the pool Premier and professional tournaments restrict their pick-ban phase to. The current rotation took effect on 2026-07-08 ("Season 5, Armory, and More" 8 Jul 2026: Cache replaced Overpass (premier-seasons.ts, map-data/cache.ts, overpass.ts)).