Matchup Scout

What Matchup Scout does

Matchup Scout is a CrownLab tool by CrownStats that compares how a Clash Royale player's current deck performs against each opponent archetype in their own recent battles with how the same exact deck performs against those archetypes across the battles CrownStats has collected.

Matchup Scout puts two views of the same deck side by side. The global view is how this exact eight-card deck has performed against each opponent archetype across the battles CrownStats has collected. The personal view is how you have performed with it against those same archetypes in your recent battles. The gap between the two is the story.

A low baseline win rate against an archetype — measured across many players' games with this exact deck — means that archetype has genuinely been difficult for the deck; a low personal win rate on three battles means very little on its own. Matchup Scout labels both, separately, and never lets a tiny personal sample stand in for proof.

What Matchup Scout analyses

• Global results for the player's exact current 8-card deck against each opponent archetype, from CrownStats' collected battles in the last 30 days
• The player's own recent 1v1 battles played with that exact deck, grouped by the opponent's archetype
• The gap, in percentage points, between the personal win rate and the deck's baseline win rate for each archetype
• A sample-size label for every personal record, and the observation count behind every global figure

How CrownStats compares personal and global matchups

1. Global baseline: an archetype is only labelled once CrownStats has at least 20 observed battles for this deck against it within the 30-day window. The label is favourable at 60% or more, slightly favourable at 55%, approximately even at 45%, slightly unfavourable at 40%, and unfavourable below that.
2. Personal record: only recent 1v1 battles in which the player used this exact deck and the opponent's full deck was identifiable are counted. Each opponent deck is classified into an archetype with the same rules CrownStats uses on its deck and archetype pages.
3. Performance gap: the personal win rate minus the baseline win rate for the same deck. With at least 3 personal battles against an archetype, a gap of +15 points or more is labelled outperforming and −15 or worse underperforming; anything between is near expectation. Fewer than 3 battles is labelled a small sample and never drives a signal.
4. Up to 4 insights summarise the largest gaps, always with the record and the sample behind them.

Key terms

Archetype

CrownStats' name for a deck's style, assigned from its win condition and supporting cards — the same classification used across CrownStats' deck and archetype pages.

Global baseline

The win rate of this exact deck against an archetype across the battles CrownStats has collected, shown only once the observation minimum is met.

Personal matchup record

Your own wins, losses and draws with this exact deck against that archetype, taken from your recent battle log.

Performance gap

Your personal win rate minus the baseline win rate for the same deck and archetype across CrownStats' collected battles, in percentage points. It is descriptive — not a significance test.

Evidence (personal confidence)

A label from none, very small, low and moderate to stronger, driven by how many of your recent battles with this deck met the archetype. It describes sample size, not certainty.

What Matchup Scout cannot see

• Only battles with the exact current eight-card deck count. There is no similar-deck fallback in this version.
• Global baselines exist only for decks and archetypes with at least 20 observed battles in the window; a rare deck may have no global data at all, and the tool says so.
• The personal sample is the recent battle log, so it is usually small. A large personal gap on a few games is variance more often than a real tendency, which is why small samples are labelled rather than interpreted.
• Global figures describe CrownStats' collected sample of battles, not every Clash Royale game played.
• Matchup Scout does not recommend deck changes or name counters; it reports measured performance against archetypes so the player can decide what to practise.
• Results do not indicate or prove anything about matchmaking.

Sample size and evidence

Global and personal samples are shown separately with their own counts. The personal side is labelled a small sample below the minimum rather than hidden or inflated, and no permanent personal history is stored.

Where the data comes from

CrownLab reads a player's profile, current deck, card levels and recent battle log through the Official Clash Royale API. It combines them with CrownStats' own card-stat dataset (per-level damage, hitpoints and related values, kept current with balance corrections) and, where a tool uses it, CrownStats' aggregated deck statistics from the battles it has collected. Nothing is estimated from a source CrownStats does not have.

Every personal CrownLab result is computed on demand from the recent battles the Clash Royale API currently returns for that player — a recent sample, not a stored career history — so a result can change as new battles are played and older ones leave the log.

CrownLab recommendations, Crown Score and Upgrade Advisor's rankings are CrownStats' own formulas. They are not official Supercell ratings or recommendations, and they are not a measure of a player's raw skill.

The personal CrownLab tools run on the Clash Royale player tag linked to a signed-in CrownStats account. Interaction Lab needs no account and no tag.

CrownStats is an independent project, built and maintained by one developer. It is not affiliated with, endorsed by or sponsored by Supercell. Clash Royale is a trademark of Supercell.

Related CrownStats tools and pages

• Battle Insights reports the difficult opponent cards and archetypes behind your recent losses.
• Crown Coach gives extra weight to an archetype confirmed as difficult by both your record and the global data.
• Deck Archetypes explains each archetype and shows its current tracked statistics.
• Deck Explorer finds any tracked deck's page, where its global matchup data is published.
• CrownLab lists every CrownLab tool by CrownStats, with shared terminology and limitations.