{"window_days":7,"from":"2026-09-09","games_returned":3,"games_withheld_below_min_bets":4,"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":"Roobet","game":"Roobet Blackjack","provider":"unknown","bets":388,"observed_return":0.8942124176843969,"declared_rtp":null,"gap":null,"std_error":0.04464187374384426,"ci95":[0.8067143451464621,0.9817104902223316],"max_multiplier":3.8333333333333335,"confidence":"low","margin":0.08749807253793475,"publishable":true,"withheld":null,"diverges_from_declared":null,"window":{"from":"2026-09-09","to":"2026-09-16"},"published_loss_share":0.5257731958762887,"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":"Roobet","game":"Roobet BlackjackX 1","provider":"pragmatic play","bets":235,"observed_return":1.000250804272571,"declared_rtp":null,"gap":null,"std_error":0.06488295567374835,"ci95":[0.8730802111520243,1.1274213973931178],"max_multiplier":5.666666666666667,"confidence":"low","margin":0.12717059312054677,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-09","to":"2026-09-15"},"published_loss_share":0.48936170212765956,"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":"Roobet","game":"Roobet Blackjack 2","provider":"unknown","bets":208,"observed_return":0.9900310073756342,"declared_rtp":null,"gap":null,"std_error":0.06468167515036709,"ci95":[0.8632549240809148,1.1168070906703538],"max_multiplier":5.083333333333333,"confidence":"low","margin":0.12677608329471948,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-09","to":"2026-09-16"},"published_loss_share":0.5048076923076923,"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}}]}