{"window_days":7,"from":"2026-10-26","games_returned":11,"games_withheld_below_min_bets":1,"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":"Big Bass Halloween Splash 1000","provider":"pragmatic play","bets":22594,"observed_return":0.9834447777898305,"declared_rtp":null,"gap":null,"std_error":0.06038239024939285,"ci95":[0.8650952929010205,1.1017942626786406],"max_multiplier":520.3651225098855,"confidence":"high","margin":0.11834948488880997,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-10-26","to":"2026-11-02"},"published_loss_share":0.9226785872355493,"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 Halloween Splash 1000","provider":"unknown","bets":5208,"observed_return":0.9481109617682383,"declared_rtp":null,"gap":null,"std_error":0.12693128229963238,"ci95":[0.6993256484609588,1.1968962750755177],"max_multiplier":268.9,"confidence":"moderate","margin":0.24878531330727946,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-10-26","to":"2026-11-02"},"published_loss_share":0.9066820276497696,"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 Halloween Splash 1000","provider":"pragmatic play","bets":3044,"observed_return":3.2639461038107758,"declared_rtp":null,"gap":null,"std_error":0.2721665175955056,"ci95":[2.7304997293235846,3.797392478297967],"max_multiplier":367.1,"confidence":"moderate","margin":0.5334463744871909,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-10-26","to":"2026-11-02"},"published_loss_share":0.6179369250985546,"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":"Roobet","game":"Big Bass Halloween 3","provider":"pragmatic play","bets":2471,"observed_return":1.0754892133934215,"declared_rtp":null,"gap":null,"std_error":0.16660551922400976,"ci95":[0.7489423957143624,1.4020360310724806],"max_multiplier":163.7,"confidence":"moderate","margin":0.32654681767905913,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-10-26","to":"2026-11-02"},"published_loss_share":0.9138000809388911,"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 Halloween","provider":"pragmatic play","bets":1888,"observed_return":0.923266894819165,"declared_rtp":null,"gap":null,"std_error":0.15954955433922421,"ci95":[0.6105497683142855,1.2359840213240445],"max_multiplier":176,"confidence":"moderate","margin":0.31271712650487943,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-10-26","to":"2026-11-02"},"published_loss_share":0.913135593220339,"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 Halloween 3","provider":"pragmatic play","bets":1511,"observed_return":2.166365684976837,"declared_rtp":null,"gap":null,"std_error":0.25533131691242117,"ci95":[1.6659163038284914,2.6668150661251824],"max_multiplier":200.5,"confidence":"moderate","margin":0.5004493811483455,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-10-26","to":"2026-11-02"},"published_loss_share":0.6386499007279947,"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":"Roobet","game":"Big Bass Halloween 2","provider":"pragmatic play","bets":1170,"observed_return":1.4405089312284387,"declared_rtp":null,"gap":null,"std_error":0.4013792263361045,"ci95":[0.6538056476096739,2.2272122148472038],"max_multiplier":224.39409755453767,"confidence":"moderate","margin":0.7867032836187648,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-10-26","to":"2026-11-02"},"published_loss_share":0.9205128205128205,"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 Halloween 2","provider":"pragmatic play","bets":325,"observed_return":1.509894153846154,"declared_rtp":null,"gap":null,"std_error":0.21829934172444787,"ci95":[1.0820274440662363,1.937760863626072],"max_multiplier":53.21439,"confidence":"low","margin":0.4278667097799178,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-10-26","to":"2026-11-02"},"published_loss_share":0.64,"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":"Shuffle","game":"Big Bass Halloween 3","provider":"unknown","bets":265,"observed_return":1.156079245283151,"declared_rtp":null,"gap":null,"std_error":0.4527793625704706,"ci95":[0.2686316946450287,2.0435267959212733],"max_multiplier":104.93333333333342,"confidence":"low","margin":0.8874475506381223,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-10-26","to":"2026-11-02"},"published_loss_share":0.8830188679245283,"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 Halloween","provider":"unknown","bets":244,"observed_return":0.3900546448087399,"declared_rtp":null,"gap":null,"std_error":0.20770061513831717,"ci95":[-0.017038560862361718,0.7971478504798415],"max_multiplier":40,"confidence":"low","margin":0.40709320567110163,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-10-26","to":"2026-11-02"},"published_loss_share":0.9590163934426229,"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 Halloween 2","provider":"unknown","bets":110,"observed_return":0.33055454545454516,"declared_rtp":null,"gap":null,"std_error":0.13500008300356414,"ci95":[0.06595438276755944,0.5951547081415309],"max_multiplier":10.000000000000002,"confidence":"low","margin":0.2646001626869857,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-10-26","to":"2026-11-01"},"published_loss_share":0.9272727272727272,"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}}]}