Four of the six battle stats — Height, Speed, Inversions, Vintage — are plain facts. The other two, Build Cost and Throughput, carry an est. superscript because they're estimates, and estimates deserve a paper trail.
Build Cost
Figures are inflation-adjusted to today's USD. Where a park or manufacturer has published a construction cost, that's the source. Where they haven't, we work down a source hierarchy: official press release or investor filing, then trade press (Amusement Today, Blooloop, InPark), then manufacturer statements, then — flagged separately — informed community estimates from build-cost threads on enthusiast forums. Every card's provenance is logged; ask and we'll show our working.
Throughput
Manufacturers quote a theoretical throughput — riders per hour at full trains, zero dispatch delay, ideal staffing. We publish that number, but where a park has a track record of running well below theoretical (short trains, single-train ops), the card notes the gap on its detail page. The headline number on the card face is theoretical throughput, consistently, so cards compare like-for-like.
Airtime & Intensity
These are community-voted scores from 0–100, shown on card detail pages — deliberately kept off the battle line, because they're opinion, not fact, and every battle stat on the card front is either a fact or a clearly labelled estimate. Vote weight is capped per account and scores need a minimum sample before they display.
Something wrong?
Stats get corrected. If a height, speed or cost figure looks off, tell us what you've got and where it's from — a manufacturer spec sheet, a press release, a park statement beats a forum estimate. Corrections go through the same provenance log as the original figure and the card updates album-wide once verified.