--- title: "Grand Japanese Speed Blackjack game: RTP & biggest wins" description: "Grand Japanese Speed Blackjack by Stake Originals: 452 sampled bets in 30 days. Biggest win $13K (2.17x) at Stake. Played at 1 crypto casino we track." url: https://gambatracker.com/slots/stake-grand-japanese-speed-blackjack rendered: 2026-11-13T01:51Z --- Grand Japanese Speed Blackjack [Slots](https://gambatracker.com/slots) / Grand Japanese Speed Blackjack # Grand Japanese Speed Blackjack · originals [Stake Originals](https://gambatracker.com/providers/stake-originals) played on 1 casino we read [Compare](https://gambatracker.com/slots/compare?a=stake-grand-japanese-speed-blackjack) [24h](https://gambatracker.com/slots/stake-grand-japanese-speed-blackjack?window=24h) [7d](https://gambatracker.com/slots/stake-grand-japanese-speed-blackjack?window=7d) [30d](https://gambatracker.com/slots/stake-grand-japanese-speed-blackjack) [90d](https://gambatracker.com/slots/stake-grand-japanese-speed-blackjack?window=90d) [All](https://gambatracker.com/slots/stake-grand-japanese-speed-blackjack?window=all) ## Observed RTP vs official · paid ÷ wagered over the sampled bets, with a 95% band 24h · 129.15% ±40.8 · 2 bets — 7d · 67.35% ±53.1 · 9 bets — 30d · 73.08% ±41.1 · 17 bets — 90d · 73.08% ±41.1 · 17 bets — All · 73.08% ±41.1 · 17 bets — Per casino, 30d [Stake](https://gambatracker.com/casinos/stake) · 17 bets · below min 31.5% 73.3% 115.0% The marker is the RTP each casino publishes for this game. An amber bar means that figure is outside the 95% band of what we observed there; grey bars are below the minimum sample. ## This game · all sampled bets - **Bets**: 452 - **Wagered**: $748K - **Paid**: $810K - **Max multiplier**: 3.54x - **Max payout**: $13K too early Not enough bets over 30d to compare with the official RTP yet. Every spin is independent. ## Official RTP · as published by each casino No casino publishes an RTP for this game. ## Multiplier distribution · 30d, sampled bets 17 sampled spins, 47% of them paid something. - **0 spins**: paid 10x+ in this sample - **0 spins**: paid 100x+ in this sample - **0 spins**: paid 1000x+ in this sample 0 0-1 1-2 2-5 5-10 10-50 50-100 100-1000 1000+ From 17 sampled spins; a small sample swings a lot, and every spin is independent. Bar height is square-root scaled so the rare high buckets stay visible. Hover a bar for the count. ## Where it is played · 30d, share of sampled wagering [Stake](https://gambatracker.com/casinos/stake) $16.9K 17 bets · 100% ## When players play · 30d · sampled bets by UTC hour and weekday, since 2 Nov 2026 Mon Mon 00:00–01:00 UTC: 0 bets, $0 wagered Mon 01:00–02:00 UTC: 0 bets, $0 wagered Mon 02:00–03:00 UTC: 0 bets, $0 wagered Mon 03:00–04:00 UTC: 0 bets, $0 wagered Mon 04:00–05:00 UTC: 0 bets, $0 wagered Mon 05:00–06:00 UTC: 0 bets, $0 wagered Mon 06:00–07:00 UTC: 0 bets, $0 wagered Mon 07:00–08:00 UTC: 0 bets, $0 wagered Mon 08:00–09:00 UTC: 2 bets, $2,316 wagered Mon 09:00–10:00 UTC: 0 bets, $0 wagered Mon 10:00–11:00 UTC: 0 bets, $0 wagered Mon 11:00–12:00 UTC: 2 bets, $4,798 wagered Mon 12:00–13:00 UTC: 2 bets, $2,134 wagered Mon 13:00–14:00 UTC: 0 bets, $0 wagered Mon 14:00–15:00 UTC: 13 bets, $17.9K wagered Mon 15:00–16:00 UTC: 0 bets, $0 wagered Mon 16:00–17:00 UTC: 0 bets, $0 wagered Mon 17:00–18:00 UTC: 0 bets, $0 wagered Mon 18:00–19:00 UTC: 0 bets, $0 wagered Mon 19:00–20:00 UTC: 0 bets, $0 wagered Mon 20:00–21:00 UTC: 29 bets, $36.7K wagered Mon 21:00–22:00 UTC: 8 bets, $11.5K wagered Mon 22:00–23:00 UTC: 0 bets, $0 wagered Mon 23:00–00:00 UTC: 4 bets, $4,650 wagered Tue Tue 00:00–01:00 UTC: 11 bets, $15.5K wagered Tue 01:00–02:00 UTC: 4 bets, $5,211 wagered Tue 02:00–03:00 UTC: 0 bets, $0 wagered Tue 03:00–04:00 UTC: 43 bets, $60.8K wagered Tue 04:00–05:00 UTC: 4 bets, $5,068 wagered Tue 05:00–06:00 UTC: 0 bets, $0 wagered Tue 06:00–07:00 UTC: 0 bets, $0 wagered Tue 07:00–08:00 UTC: 1 bets, $1,500 wagered Tue 08:00–09:00 UTC: 8 bets, $10.8K wagered Tue 09:00–10:00 UTC: 0 bets, $0 wagered Tue 10:00–11:00 UTC: 0 bets, $0 wagered Tue 11:00–12:00 UTC: 0 bets, $0 wagered Tue 12:00–13:00 UTC: 0 bets, $0 wagered Tue 13:00–14:00 UTC: 7 bets, $9,173 wagered Tue 14:00–15:00 UTC: 19 bets, $36.1K wagered Tue 15:00–16:00 UTC: 43 bets, $62.4K wagered Tue 16:00–17:00 UTC: 1 bets, $1,850 wagered Tue 17:00–18:00 UTC: 13 bets, $17.4K wagered Tue 18:00–19:00 UTC: 2 bets, $2,232 wagered Tue 19:00–20:00 UTC: 0 bets, $0 wagered Tue 20:00–21:00 UTC: 0 bets, $0 wagered Tue 21:00–22:00 UTC: 3 bets, $3,926 wagered Tue 22:00–23:00 UTC: 2 bets, $3,505 wagered Tue 23:00–00:00 UTC: 1 bets, $1,176 wagered Wed Wed 00:00–01:00 UTC: 2 bets, $2,970 wagered Wed 01:00–02:00 UTC: 1 bets, $1,121 wagered Wed 02:00–03:00 UTC: 6 bets, $18.7K wagered Wed 03:00–04:00 UTC: 3 bets, $5,524 wagered Wed 04:00–05:00 UTC: 0 bets, $0 wagered Wed 05:00–06:00 UTC: 0 bets, $0 wagered Wed 06:00–07:00 UTC: 0 bets, $0 wagered Wed 07:00–08:00 UTC: 0 bets, $0 wagered Wed 08:00–09:00 UTC: 2 bets, $4,191 wagered Wed 09:00–10:00 UTC: 1 bets, $500 wagered Wed 10:00–11:00 UTC: 1 bets, $1,154 wagered Wed 11:00–12:00 UTC: 0 bets, $0 wagered Wed 12:00–13:00 UTC: 0 bets, $0 wagered Wed 13:00–14:00 UTC: 0 bets, $0 wagered Wed 14:00–15:00 UTC: 0 bets, $0 wagered Wed 15:00–16:00 UTC: 0 bets, $0 wagered Wed 16:00–17:00 UTC: 0 bets, $0 wagered Wed 17:00–18:00 UTC: 0 bets, $0 wagered Wed 18:00–19:00 UTC: 0 bets, $0 wagered Wed 19:00–20:00 UTC: 4 bets, $6,468 wagered Wed 20:00–21:00 UTC: 3 bets, $3,601 wagered Wed 21:00–22:00 UTC: 8 bets, $9,914 wagered Wed 22:00–23:00 UTC: 4 bets, $6,679 wagered Wed 23:00–00:00 UTC: 7 bets, $11.2K wagered Thu Thu 00:00–01:00 UTC: 12 bets, $18.1K wagered Thu 01:00–02:00 UTC: 0 bets, $0 wagered Thu 02:00–03:00 UTC: 0 bets, $0 wagered Thu 03:00–04:00 UTC: 0 bets, $0 wagered Thu 04:00–05:00 UTC: 0 bets, $0 wagered Thu 05:00–06:00 UTC: 0 bets, $0 wagered Thu 06:00–07:00 UTC: 26 bets, $34.9K wagered Thu 07:00–08:00 UTC: 9 bets, $16.1K wagered Thu 08:00–09:00 UTC: 0 bets, $0 wagered Thu 09:00–10:00 UTC: 0 bets, $0 wagered Thu 10:00–11:00 UTC: 14 bets, $29.4K wagered Thu 11:00–12:00 UTC: 0 bets, $0 wagered Thu 12:00–13:00 UTC: 0 bets, $0 wagered Thu 13:00–14:00 UTC: 0 bets, $0 wagered Thu 14:00–15:00 UTC: 12 bets, $39.4K wagered Thu 15:00–16:00 UTC: 0 bets, $0 wagered Thu 16:00–17:00 UTC: 7 bets, $12.1K wagered Thu 17:00–18:00 UTC: 7 bets, $22.4K wagered Thu 18:00–19:00 UTC: 5 bets, $10.2K wagered Thu 19:00–20:00 UTC: 4 bets, $10.2K wagered Thu 20:00–21:00 UTC: 0 bets, $0 wagered Thu 21:00–22:00 UTC: 3 bets, $8,501 wagered Thu 22:00–23:00 UTC: 8 bets, $20.8K wagered Thu 23:00–00:00 UTC: 5 bets, $7,507 wagered Fri Fri 00:00–01:00 UTC: 0 bets, $0 wagered Fri 01:00–02:00 UTC: 0 bets, $0 wagered Fri 02:00–03:00 UTC: 0 bets, $0 wagered Fri 03:00–04:00 UTC: 0 bets, $0 wagered Fri 04:00–05:00 UTC: 0 bets, $0 wagered Fri 05:00–06:00 UTC: 0 bets, $0 wagered Fri 06:00–07:00 UTC: 0 bets, $0 wagered Fri 07:00–08:00 UTC: 0 bets, $0 wagered Fri 08:00–09:00 UTC: 0 bets, $0 wagered Fri 09:00–10:00 UTC: 0 bets, $0 wagered Fri 10:00–11:00 UTC: 0 bets, $0 wagered Fri 11:00–12:00 UTC: 0 bets, $0 wagered Fri 12:00–13:00 UTC: 1 bets, $1,264 wagered Fri 13:00–14:00 UTC: 20 bets, $26.6K wagered Fri 14:00–15:00 UTC: 0 bets, $0 wagered Fri 15:00–16:00 UTC: 0 bets, $0 wagered Fri 16:00–17:00 UTC: 0 bets, $0 wagered Fri 17:00–18:00 UTC: 0 bets, $0 wagered Fri 18:00–19:00 UTC: 0 bets, $0 wagered Fri 19:00–20:00 UTC: 0 bets, $0 wagered Fri 20:00–21:00 UTC: 0 bets, $0 wagered Fri 21:00–22:00 UTC: 0 bets, $0 wagered Fri 22:00–23:00 UTC: 0 bets, $0 wagered Fri 23:00–00:00 UTC: 0 bets, $0 wagered Sat Sat 00:00–01:00 UTC: 0 bets, $0 wagered Sat 01:00–02:00 UTC: 0 bets, $0 wagered Sat 02:00–03:00 UTC: 0 bets, $0 wagered Sat 03:00–04:00 UTC: 0 bets, $0 wagered Sat 04:00–05:00 UTC: 0 bets, $0 wagered Sat 05:00–06:00 UTC: 0 bets, $0 wagered Sat 06:00–07:00 UTC: 0 bets, $0 wagered Sat 07:00–08:00 UTC: 0 bets, $0 wagered Sat 08:00–09:00 UTC: 2 bets, $2,250 wagered Sat 09:00–10:00 UTC: 0 bets, $0 wagered Sat 10:00–11:00 UTC: 0 bets, $0 wagered Sat 11:00–12:00 UTC: 0 bets, $0 wagered Sat 12:00–13:00 UTC: 0 bets, $0 wagered Sat 13:00–14:00 UTC: 0 bets, $0 wagered Sat 14:00–15:00 UTC: 0 bets, $0 wagered Sat 15:00–16:00 UTC: 0 bets, $0 wagered Sat 16:00–17:00 UTC: 1 bets, $1,189 wagered Sat 17:00–18:00 UTC: 3 bets, $8,000 wagered Sat 18:00–19:00 UTC: 0 bets, $0 wagered Sat 19:00–20:00 UTC: 20 bets, $25K wagered Sat 20:00–21:00 UTC: 9 bets, $17.3K wagered Sat 21:00–22:00 UTC: 0 bets, $0 wagered Sat 22:00–23:00 UTC: 8 bets, $8,532 wagered Sat 23:00–00:00 UTC: 3 bets, $16.4K wagered Sun Sun 00:00–01:00 UTC: 0 bets, $0 wagered Sun 01:00–02:00 UTC: 3 bets, $3,507 wagered Sun 02:00–03:00 UTC: 0 bets, $0 wagered Sun 03:00–04:00 UTC: 0 bets, $0 wagered Sun 04:00–05:00 UTC: 5 bets, $18K wagered Sun 05:00–06:00 UTC: 0 bets, $0 wagered Sun 06:00–07:00 UTC: 0 bets, $0 wagered Sun 07:00–08:00 UTC: 0 bets, $0 wagered Sun 08:00–09:00 UTC: 0 bets, $0 wagered Sun 09:00–10:00 UTC: 1 bets, $1,051 wagered Sun 10:00–11:00 UTC: 0 bets, $0 wagered Sun 11:00–12:00 UTC: 0 bets, $0 wagered Sun 12:00–13:00 UTC: 0 bets, $0 wagered Sun 13:00–14:00 UTC: 0 bets, $0 wagered Sun 14:00–15:00 UTC: 0 bets, $0 wagered Sun 15:00–16:00 UTC: 0 bets, $0 wagered Sun 16:00–17:00 UTC: 0 bets, $0 wagered Sun 17:00–18:00 UTC: 0 bets, $0 wagered Sun 18:00–19:00 UTC: 0 bets, $0 wagered Sun 19:00–20:00 UTC: 0 bets, $0 wagered Sun 20:00–21:00 UTC: 0 bets, $0 wagered Sun 21:00–22:00 UTC: 0 bets, $0 wagered Sun 22:00–23:00 UTC: 0 bets, $0 wagered Sun 23:00–00:00 UTC: 0 bets, $0 wagered by hour Busiest hour: Tue 03:00–04:00 UTC with 43 bets; busiest time of day: 03:00–04:00 UTC; busiest day: Tue. Observed on the public feeds we read, a sample: when people were seen playing, not when anyone should. Hours are UTC. ## Biggest hits · largest payouts we saw on this game [Stake](https://gambatracker.com/casinos/stake) [Grand Japanese Speed Blackjack Stake Originals](https://gambatracker.com/originals/blackjack) Hidden $6,000 6,000 USDC $13K 2.17x 2026-11-12 14:30 UTC [Stake](https://gambatracker.com/casinos/stake) [Grand Japanese Speed Blackjack Stake Originals](https://gambatracker.com/originals/blackjack) Hidden $5,000 5,000 USDC $10K 2.00x 2026-11-12 21:28 UTC [Stake](https://gambatracker.com/casinos/stake) [Grand Japanese Speed Blackjack Stake Originals](https://gambatracker.com/originals/blackjack) Hidden $4,478 4,478 USDT $8,956 2.00x 2026-11-05 10:53 UTC [Stake](https://gambatracker.com/casinos/stake) [Grand Japanese Speed Blackjack Stake Originals](https://gambatracker.com/originals/blackjack) Hidden $4,006 1.7907 ETH $8,013 2.00x 2026-11-08 04:22 UTC [Stake](https://gambatracker.com/casinos/stake) [Grand Japanese Speed Blackjack Stake Originals](https://gambatracker.com/originals/blackjack) Hidden $4,805 4,805 USDT $8,008 1.67x 2026-11-07 23:11 UTC [Stake](https://gambatracker.com/casinos/stake) [Grand Japanese Speed Blackjack Stake Originals](https://gambatracker.com/originals/blackjack) Hidden $4,500 4,500 USDC $8,000 1.78x 2026-11-12 14:29 UTC [Stake](https://gambatracker.com/casinos/stake) [Grand Japanese Speed Blackjack Stake Originals](https://gambatracker.com/originals/blackjack) Hidden $6,000 6,000 USDC $8,000 1.33x 2026-11-12 14:29 UTC [Stake](https://gambatracker.com/casinos/stake) [Grand Japanese Speed Blackjack Stake Originals](https://gambatracker.com/originals/blackjack) Hidden $4,000 4,000 USDC $8,000 2.00x 2026-11-12 14:28 UTC [Stake](https://gambatracker.com/casinos/stake) [Grand Japanese Speed Blackjack Stake Originals](https://gambatracker.com/originals/blackjack) Hidden $4,000 4,000 USDC $8,000 2.00x 2026-11-12 10:41 UTC [Stake](https://gambatracker.com/casinos/stake) [Grand Japanese Speed Blackjack Stake Originals](https://gambatracker.com/originals/blackjack) Hidden $4,000 4,000 USDC $8,000 2.00x 2026-11-07 17:19 UTC ## Live RTP by casino · 30d, refreshes on reload [24h](https://gambatracker.com/slots/stake-grand-japanese-speed-blackjack?window=24h) [7d](https://gambatracker.com/slots/stake-grand-japanese-speed-blackjack?window=7d) [30d](https://gambatracker.com/slots/stake-grand-japanese-speed-blackjack) [90d](https://gambatracker.com/slots/stake-grand-japanese-speed-blackjack?window=90d) [All](https://gambatracker.com/slots/stake-grand-japanese-speed-blackjack?window=all) | # | Casino | Observed RTP | Official | Dev. | Bets | Wagered | | --- | --- | --- | --- | --- | --- | --- | | 1 | [Stake](https://gambatracker.com/casinos/stake) | 73.08% ±41.1 | — | — | 17 bets · below min | $16.9K | ## About Grand Japanese Speed Blackjack · from the figures on this page Grand Japanese Speed Blackjack is a Stake Originals game. Over the last 30 days we observed 452 bets on it at 1 casino, too few to measure its RTP over 30 days. Its highest multiplier in the last 30 days was 3.54x. The biggest win we saw on it paid $13K (2.17x) at Stake on 12 Nov 2026. Over the last 30 days it was played most, by wager, at Stake. ## More from Stake Originals · 30 days, by observed wagering [Studio →](https://gambatracker.com/providers/stake-originals) No other game of theirs in the sampled feeds in 30 days. 18+ **These are past, observed results.** Every spin and round is independent: a hot or cold streak says nothing about what happens next, and no figure on this site improves anyone's odds. Gambling can be harmful. [BeGambleAware](https://www.begambleaware.org/) [Gamblers Anonymous](https://www.gamblersanonymous.org/) [Help & limits](https://gambatracker.com/responsible-gambling) How these figures are produced and labelled: https://gambatracker.com/llms.txt