That happened to me three years ago for example. Not only one has to go for the correct result (over/under) but also in the right direction!
Going back to the hidden user bets it would be nice to know the overall profit.
Overall profit of 0.44BTC:
https://crypto.games/player/crmx (changed nick from Creampie to crmx, as shown on their BetIDs which aren't set to hidden)
They placed some bigger bets on other games after winning, so total wager is not from the x9920 bets only
First place prize on today's BTC lottery was won by player Joren. He won 0.072880 BTC while owning only 8 tickets (0.878% of total). Second and third place prizes went to Styfic99 and Penelope45. Congrat$!!
Next lottery round will be Ethereum Lottery round #232, which closes on Thursday November 5th at 7:30 UTC. 18 hours left to buy tickets.
Current prizes:
1st place: 1.1376 ETH
2nd place: 0.2133 ETH
3rd place: 0.0711 ETH
Total tickets bought so far: 948
Price per ticket: 0.0015 ETH
Current top 3 ticket owners:
Bandos231 with 300 tickets (31.6456% chance)
Amans056 with 200 tickets (21.0970% chance)
Aguisel935 with 100 tickets (10.5485% chance)
Almost forgot a nice 334,705,108 Playmoney (value 0.06694102 BTC; 926.73 USD) Jackpot hit from player Hardwell on roulette with bets of 1,480 Playmoney (30 satoshi value).
This is how roulette jackpot works (from the site's FAQ):