{"window_days":7,"from":"2026-09-14","games_returned":4,"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":"Cloudbet","game":"Big Bass Boxing Bonus Round","provider":"pragmatic play","bets":3683,"observed_return":0.3242646393338767,"declared_rtp":null,"gap":null,"std_error":0.03705924280454359,"ci95":[0.2516285234369713,0.39690075523078217],"max_multiplier":67.00000000000004,"confidence":"moderate","margin":0.07263611589690544,"publishable":false,"withheld":"implausible","diverges_from_declared":null,"window":{"from":"2026-09-16","to":"2026-09-21"},"published_loss_share":0.930219929405376,"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 Boxing Bonus Round","provider":"pragmatic play","bets":2335,"observed_return":0.7484901626491456,"declared_rtp":null,"gap":null,"std_error":0.1674670548533875,"ci95":[0.4202547351365061,1.0767255901617852],"max_multiplier":288.7900067011256,"confidence":"moderate","margin":0.3282354275126395,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.9177730192719487,"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 Boxing Bonus Round","provider":"pragmatic play","bets":270,"observed_return":2.3668502222222223,"declared_rtp":null,"gap":null,"std_error":0.576438890884408,"ci95":[1.2370299960887825,3.496670448355662],"max_multiplier":103.2,"confidence":"low","margin":1.1298202261334398,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-15","to":"2026-09-21"},"published_loss_share":0.662962962962963,"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 Boxing Bonus Round","provider":"unknown","bets":114,"observed_return":1.0011695906432747,"declared_rtp":null,"gap":null,"std_error":0.775384230872816,"ci95":[-0.5185835018674447,2.5209226831539944],"max_multiplier":88.2,"confidence":"low","margin":1.5197530925107194,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.9298245614035088,"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}}]}