{"window_days":7,"from":"2026-09-12","games_returned":2,"games_withheld_below_min_bets":3,"min_bets":100,"method":{"estimator":"mean payout multiplier, currency independent","interval":"95%, mean plus or minus 1.96 standard errors","source":"each casino's own public bet feed, captured by us","sampling":"the feeds are rolling windows the operators publish; this is a sample of their flow, not the whole of it, and the selection rule is not visible to us","declared_rtp":"only Stake.com publishes a house edge, so declared_rtp and gap are null for other operators","selection_bias":"the feeds are the operators' own marketing surfaces and the selection leans toward winning rounds, so observed_return is UNCORRECTED and biased upward by an unknown amount that differs per operator. feed_bias reports 'curated' where an observed return above 100% proves the feed is incomplete, since no game returns more than it takes over the long run."},"confidence_levels":{"high":">=10000 bets","moderate":">=1000","low":">=100","insufficient":"<100"},"publishable":["low","moderate","high"],"source_kinds":{"observed":"Counted directly from the operator's public feed.","derived":"Computed from observed data through a documented method.","reported":"Published by the operator. We repeat it, we do not verify it.","estimate":"Model output carrying assumptions. Always a range."},"games":[{"casino":"Cloudbet","game":"Bonanza Billion Xtreme","provider":"bgaming","bets":2996,"observed_return":0.6462149532710477,"declared_rtp":null,"gap":null,"std_error":0.0324881539323539,"ci95":[0.5825381715636341,0.7098917349784614],"max_multiplier":27.25,"confidence":"moderate","margin":0.06367678170741364,"publishable":false,"withheld":"implausible","diverges_from_declared":null,"window":{"from":"2026-09-12","to":"2026-09-19"},"published_loss_share":0.8160881174899867,"feed_bias":"unknown","observed_return_note":"Uncorrected for feed selection. The operator chooses which rounds to publish.","source":{"bets":"observed","observed_return":"derived","declared_rtp":null,"gap":null}},{"casino":"Winna","game":"Bonanza Billion Xtreme","provider":"bgaming","bets":325,"observed_return":2.4503388000000004,"declared_rtp":null,"gap":null,"std_error":0.214633335202302,"ci95":[2.0296574630034883,2.8710201369965125],"max_multiplier":26.3,"confidence":"low","margin":0.4206813369965119,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-12","to":"2026-09-18"},"published_loss_share":0.27692307692307694,"feed_bias":"curated","observed_return_note":"This feed publishes more wins than it publishes losses, proven by an observed return above 100%. Read it as a floor on the operator's curation, not as the game's return.","source":{"bets":"observed","observed_return":"derived","declared_rtp":null,"gap":null}}]}