--- title: 'Double Grapefruit - Doomsday' source: 'https://youtube.com/watch?v=m7mqgqxEhSE' video_id: 'm7mqgqxEhSE' date: 2026-07-27 duration_sec: 810 --- # Double Grapefruit - Doomsday > Source: [Double Grapefruit - Doomsday](https://youtube.com/watch?v=m7mqgqxEhSE) ## Summary The video tests the Doomsday roulette system, a negative progression strategy with three tiers, starting with a $200 bankroll and aiming to win $100. The host runs multiple trials, demonstrating the betting patterns and showing both wins and losses, and ultimately provides a detailed rating for the system. ### Key Points - **System Overview** [00:01] — Doomsday is a negative progression roulette system with three tiers: $25, $70, and $100 bets. Starting balance is $200, goal is to win $100 or more. - **Tier One Bet Pattern** [00:27] — Five $5 bets in an X pattern covering specific numbers: eight numbers pay $20, two numbers pay $155, two pay $65, rest lose $25. - **Tier Two Bet** [01:43] — Two $35 bets on two dozens (e.g., second and third dozen). Winning gives $35 profit, covering 24 numbers (64.9% win chance). - **Tier Three Bet** [02:11] — $100 on an even money bet (e.g., high numbers). Total risk if all three steps lose is $195. - **First Trial Result** [04:58] — Won $100 in the first trial, achieving the goal. - **Second Trial Result** [05:57] — Lost $175 in the second trial, bringing net loss to $75. - **Overall Results** [09:59] — After five trials: 2 wins and 3 losses. Wins were $100 and $60. - **Ratings Breakdown** [10:53] — Host rates Doomsday: Betting simplicity 4/5, Progression simplicity 4-5/5, Chip uniformity 2/5, Jackpot potential 4/5, Scalability 2/5. ### Conclusion Doomsday is a quick, high-risk system suitable for short sessions, with potential for rapid wins or losses. It is not an all-day play system. ## Transcript testing a roulette system called Doomsday. Doomsday was a double grapefruit. It was rated the highest rating that CEG has. Both Alex and David rated it a grapefruit. That's an A. I gave it a B. There's just a small couple of problems with it, but it's still a good system. And I'm actually in the >> No more >> bust through really quick. But this is a negative progression system. There are only three tiers to it. There are three different bet sizes. >> $25, 70, and 100. So, if you get whacked at the $25 level, you go to the next step, which is 70. >> If you get whacked at the $70 level, you're going to increase to the next step, which is $100. You start with a $200 starting balance, and you try to win $100 or more. how this live stream is going so far. couple of you guys in the chat. Oh, I'm so close. It's $10 away. That's a hit. [Music] So, let me just show you the three betting levels for Doomsday. This is the tier one. This is the $25 level. There are five $5 bets made in this X pattern here. Uh what is good about this betting pattern is that there's a lot of variation to the payouts, right? There are eight numbers that pay $20. There are two numbers that pay 155. That's a lot more than what we need to get out of this trial. And then there are two numbers 14 and 23 that pay $65. Everything else is $25 whack. And like I said before, this is a negative this level, you're going to go to the next step, which is this $70 bet. With this $70 bet, you just put two $35 bets on two different dozens. You can bet two betting on the second and third dozen. Winning that is going to win you $35, which erases the $25 you lost in that first step. And if you lose this $70 bet, you're just going to bet $100 on any even money bet. In their demo, in their trials, in CEG's trials, they just put $100 on the high numbers. That's going to be betting on my favorite black numbers, but that is it. Since you have a $200 starting balance, if you are good at math, you've probably done the math already. If you lose three times in a row here, that's 25 + 70 plus 100, that's $195. Uh, you probably want to start with $195. If you want to start with 200, that's okay, too. But we are going to be doing a trial starting with 200, and we're going to try to break through, you know, $100 win. So, let's through, you know, $100 win. So, let's go ahead and get started. bets. >> Not a good start. So, I fixed a bug that was happening in my last live stream. So, this last bet wasn't showing what the results were. So, uh we did bet on the first tier and we did lose 25. We hit the zero. So, uh here's the next bet. We're going to be betting $70. That's the two $35 bets. And you have 24 numbers. 64.9% of the wheel where you numbers. 64.9% of the wheel where you win $35 and 35.1% of the wheel you lose 70. Also check out my Jack Ace merch store, shop.jack.com. There we have a ton of gambling merch, both roulette and craps and blackjack video game merch, crypto merch, Rubik's Cube merch, and of course Jack Ace branded merch as well. >> No more bets. going to go to tier three. Uh, we're already on our last bullet. Let's just >> no more bad. >> Uh, let's hit a high number, guys. That's good. So, with that recovery, we're actually up $5. That's a good >> No more bad. >> So, this is a lot different from some of the other systems that we've played. For this system, if you get whacked three times, you're probably going to be out. If you hit on that first tier, there's a good chance you're going to be out in one or two spins. So, um, this is not a play all day type system. So, that is one thing that I actually do like about it. Let's go. >> Tier one again. That's in the middle. That's good. Uh, we won 35. Sorry, that was tier two bet, but now we want to hit one of our jackpot numbers. Let's do this. 22. I think that's good. >> Uh, it's just a $20 win. That was on the outside. No more >> spin number seven. 16 again in that middle dozen. That's good. That's not good. And all all of a sudden we are scraping the bottom of the barrel here. [Music] We were very close to getting whacked or actually not too bad, but um we did end up 100. So, we played through this trial one time and we won 100 bucks. So, that one time and we won 100 bucks. So, that has been successful. this system. You can either eke your way to a win with a lot of different $20 wins or you can hit one of those jackpot numbers on that first tier. or four times. >> 21. Oh, just missed. >> No more bets. >> 25. That's a whack. Now we go to step two. The two $35 bets. two. The two $35 bets. >> No more bets. >> Come on. Let's hit that high number. That's not That's good. That's not good. So, we've played through the system twice now. We were successful the first time. We got clapped the second time. We actually lost $175. So, we're actually actually lost $175. So, we're actually down $75 for the entire session here. But let's do this a couple more times. >> No more bets. >> If you enjoy discussing gambling systems, join my Discord. We have a pretty active community of around 700 Dens like you. We love talking about gambling, so join today. >> No more bets. >> No more bets. >> Try to recover with the $35 win. That's >> No more bets. [Music] No, not good. Just keep going back and forth. forth. >> That's good. >> But this roulette simulator is something I've been working on actually for over a year, maybe two years now. But um it was never meant to be played one spin at a time. That's something I've been working on over the last two weeks now. I just added that feature. I just added that functionality. So, uh I think you know it makes it more enjoyable. I can record directly from this in instead of trying to use the uh Roulette Royale app. Uh the Roulette Royale app is pretty good, the Roulette Royale app is pretty good, but uh I no longer have to create these graphics from scratch when I want to make videos. So, showing the last result, uh the last number that hit, the last win loss, the running total uh and it makes the bets for me automatically. you know, that is going to make producing videos for you guys a lot easier. So, that's two wax now or two claps now. We've played through the system three times. Successful on the first trial, uh, not successful on the next two. So, um, we only have $60 left and we don't have enough to stay at this level and bet another hundred bucks. So, if you'd like me to review your roulette system, fill out this Google form. And if you'd like me to fasttrack the review of your system, join my Patreon. Patreon I've written for gambling, a crap simulator spreadsheet and a roulette gambling. And I think I'm going to make my spin tracking spreadsheet available for Patreon members as well. You also get discounts at my Jack Ace merch store. And in general, it just helps support the channel. Let's go ahead and start trial number four. [Music] Anthony is a big fan of the black even money bet. Me too. Just like Wesley Snipe says, >> always bet on black. >> always bet on black. >> No more bets. >> O, no. >> We may not do as well in this trial. >> stop it. Get some help. >> So, now we're just one for four. Not a good showing for the system that I rated a peach. going to go through trial number five. >> No more bets. >> That's a recovery. >> Currently up 10 bucks. actually up 75 bucks for this trial. >> That's a win. Oh, we're up 95. Our winning threshold is >> 100. So that's a win. were successful twice, and got clapped three times. So, and when you win, you don't necessarily win $100 and just freeze there. I think the first trial that we won, we did win 100. Here we won actually won60. So, you don't just win a 100 bucks when you are successful with this trial. I know you're risking 200 and it seems like you're only potentially going to win 100, but in There's potential to win a lot more than that as well. If you like learning about roulette systems, go to my site, jackase.com. There I have a catalog of over 550 roulette systems. You can sort them by my rating, by the average bet size, by the buyin. Drill down to see spin- bypin results. And you can also roulette bet analyzer. There you can enter your roulette bets. It'll show you result, what your expected loss per spin is, what your expected comp value per spin is, and what percent coverage of the wheel you have. This is my rating for Doomsday. For betting simplicity, I gave it four out of five stars. You know, I don't like this. First tier bet isn't too bad, and the second and third tier bets are easy as cake. But yeah, it's this first tier bet. betting the X somehow consolidated into a single bet, I think maybe if you just bet the dozen, like $20 on the dozen and five on the split, maybe that'd be a lot easier. You still have that jackpot on the 1720. I'd give it five stars if they changed the system like that. For progression simplicity, I give it four stars, maybe five, somewhere in between. It's just a what's different about this system is that it's a negative progression system that you can exit. You can have a success on your first bet. It's not one of those negative progression systems where you win a little bit at a time and just hope to win six or seven of those small bets in a row. That's what's good about this betting pattern here is that you have the potential to win 155 on that first spin, which would cause you to have a success for the trials. Chip uniformity, I give it two out of five stars. That's because you're going back and forth between like this $100 bet on the top tier, that would be 20 nickels, and this small bet here betting five nickels. So, because of that, I don't like it too much. Um, jackpot potential, four out of five stars. You have a good potential for a jackpot, especially on that first spin. You can win up to 155 bucks. That would be obviously your best case scenario. Scalability, we touched upon this in the chip uniformity category. scalability because you're and green chips and black chips. Not good scalability. You can scale it down. You'd have to divide by five. Uh and then you can multiply by obviously by for comp value, since you're starting with a $25 bet, that's not enough really to get you free meals. Um you would probably have to play over the course of several trips. And also, since this system, uh, you're only betting eight times and then you're bouncing, uh, it's not going to be conducive to earning and the Jack Ace Roulette Simulator. Hope you enjoyed this video. If you did, gamble responsibly. Never ever play triple zero roulette. And peace out, >> Even when you feel low, you can still go. Even when you feel slow, you can still go. Even when there's no hope, you can still go. I never answer the no, man. I still go Go go go go go go go [Music] [Music] go go go. Yeah.