{"window_days":7,"from":"2026-09-14","games_returned":6,"games_withheld_below_min_bets":3,"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":"Sweet Bonanza 2500","provider":"pragmatic play","bets":7413,"observed_return":0.8513706252409544,"declared_rtp":null,"gap":null,"std_error":0.06387640259715317,"ci95":[0.7261728761505342,0.9765683743313747],"max_multiplier":270.3666666666667,"confidence":"moderate","margin":0.12519774909042022,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.8475650883582895,"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":"Cloudbet","game":"Sweet Bonanza 2500","provider":"pragmatic play","bets":5403,"observed_return":0.4060025294589425,"declared_rtp":null,"gap":null,"std_error":0.01624635762522919,"ci95":[0.3741596685134933,0.4378453904043917],"max_multiplier":16.000000000000004,"confidence":"moderate","margin":0.03184286094544921,"publishable":false,"withheld":"implausible","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.8819174532667037,"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":"Sweet Bonanza 2500","provider":"unknown","bets":1093,"observed_return":0.9364019365660265,"declared_rtp":null,"gap":null,"std_error":0.12016101723980188,"ci95":[0.7008863427760148,1.1719175303560383],"max_multiplier":66.0565,"confidence":"moderate","margin":0.2355155937900117,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.8252516010978957,"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":"Sweet Bonanza 2500","provider":"pragmatic play","bets":986,"observed_return":1.499430223123732,"declared_rtp":null,"gap":null,"std_error":0.2075919926590457,"ci95":[1.0925499175120024,1.9063105287354616],"max_multiplier":158.34,"confidence":"low","margin":0.4068803056117296,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.6602434077079108,"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":"Stake.com","game":"Sweet Bonanza 2500","provider":"pragmatic play","bets":184,"observed_return":4.423315217391305,"declared_rtp":0.9652000000000001,"gap":3.4581152173913043,"std_error":1.2331178291262919,"ci95":[2.0064042723037727,6.840226162478837],"max_multiplier":145.65,"confidence":"low","margin":2.416910945087532,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-14"},"published_loss_share":0.7282608695652174,"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":"reported","gap":"derived"}},{"casino":"BC.Game","game":"Sweet Bonanza 2500","provider":"pragmatic play","bets":176,"observed_return":1.6737003491748743,"declared_rtp":null,"gap":null,"std_error":0.5755548729575198,"ci95":[0.5456127981781353,2.8017879001716133],"max_multiplier":88.22000911672409,"confidence":"low","margin":1.128087550996739,"publishable":false,"withheld":"imprecise","diverges_from_declared":null,"window":{"from":"2026-09-14","to":"2026-09-21"},"published_loss_share":0.7954545454545454,"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}}]}