{"window_days":7,"from":"2026-09-14","games_returned":5,"games_withheld_below_min_bets":2,"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":"Big Bass Bonanza 1000","provider":"pragmatic play","bets":23572,"observed_return":0.3336500933310722,"declared_rtp":null,"gap":null,"std_error":0.019702386199039575,"ci95":[0.29503341638095465,0.37226677028118976],"max_multiplier":200.5,"confidence":"high","margin":0.038616676950117564,"publishable":false,"withheld":"implausible","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.9268623790938402,"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":"Big Bass Bonanza 1000","provider":"pragmatic play","bets":4627,"observed_return":1.0845550510312587,"declared_rtp":null,"gap":null,"std_error":0.24803393630253787,"ci95":[0.5984085358782845,1.570701566184233],"max_multiplier":1049.2,"confidence":"moderate","margin":0.4861465151529742,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.9170088610330668,"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":"Big Bass Bonanza 1000","provider":"unknown","bets":1144,"observed_return":0.8231877428127423,"declared_rtp":null,"gap":null,"std_error":0.127510670526888,"ci95":[0.5732668285800419,1.073108657045443],"max_multiplier":74.2,"confidence":"moderate","margin":0.24992091423270046,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.8907342657342657,"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":"Big Bass Bonanza 1000","provider":"pragmatic play","bets":555,"observed_return":1.9318365945945946,"declared_rtp":null,"gap":null,"std_error":0.30202679868067694,"ci95":[1.3398640691804677,2.523809120008721],"max_multiplier":114.2,"confidence":"low","margin":0.5919725254141268,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.6666666666666666,"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}},{"casino":"BC.Game","game":"Big Bass Bonanza 1000","provider":"pragmatic play","bets":100,"observed_return":0.17167351300557812,"declared_rtp":null,"gap":null,"std_error":0.07466459045405767,"ci95":[0.025330915715625096,0.3180161102955311],"max_multiplier":6.666667092000033,"confidence":"low","margin":0.14634259728995302,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.93,"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}}]}