{"window_days":7,"from":"2026-08-25","games_returned":2,"games_withheld_below_min_bets":0,"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":"Langley Street 23","provider":"elk","bets":12372,"observed_return":0.9524979617536118,"declared_rtp":null,"gap":null,"std_error":0.050442955476431205,"ci95":[0.8536297690198066,1.0513661544874169],"max_multiplier":274.2576713994402,"confidence":"high","margin":0.09886819273380516,"publishable":true,"withheld":null,"diverges_from_declared":null,"window":{"from":"2026-08-25","to":"2026-09-01"},"published_loss_share":0.8582282573553185,"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":"Shuffle","game":"Langley Street 23","provider":"unknown","bets":526,"observed_return":1.119119296578165,"declared_rtp":null,"gap":null,"std_error":0.24553224703601131,"ci95":[0.6378760923875828,1.600362500768747],"max_multiplier":99.25000000009952,"confidence":"low","margin":0.48124320419058214,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-08-25","to":"2026-09-01"},"published_loss_share":0.8136882129277566,"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}}]}