Eli5: Why can’t you just double your losses every time you gamble on a thing with roughly 50% chance to make a profit

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This is probably really stupid but why cant I bet 100 on a close sports game game for example and if I lose bet 200 on the next one, it’s 50/50 so eventually I’ll win and make a profit

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16 Answers

Anonymous 0 Comments

Answer (the TL;DR version)

This technique works 100% of the time

…assuming you have an infinite capital to put in and double whenever you lose

If you don’t, it falls apart because eventually you’ll lose enough times consecutively where you can no longer afford to double-down

And to add to this, gambling is set in such a way where statistically speaking you are going to lose much more often than win.

The only exception being blackjack where you can count cards but you get kicked out of casinos when you do because they don’t like it when people win, even when its fair and square.

You will lose way more than you will win, there is no way around it, the house always wins, end of story.

There are no secret methods or lifehacks to “win the system”

Those who think that are already victims of the gambling trap and need to stop before it gets worse.

Anonymous 0 Comments

this is why betting limits exist. but even if they didn’t you’d eventually run out of money if you just encounter a losing streak bad enough, which for most people is reached pretty quickly. if you start betting with one dollar and double every time on a loss then after just ten losses you’d be betting 1000 dollars for a maximum profit of 1 dollar.

then also your odds are never 50/50 in a casino. casino gotta make a margin somehow somewhere.

Anonymous 0 Comments

I tried this strategy at blackjack when I was younger. I was playing at a $3 table in Vegas. Started with $100 and got up to $300. And my strategy was that whenever I lost maybe 5 hands in a row, I’d start doubling my bets until I won. Thought I was a genius.

Until I hit a bad streak and blew through my $300 plus another $100 in about 5 hands lol

Anonymous 0 Comments

How many bets can you afford to lose in a row? In a losing streak, your bets would go like this:
100
200
400
800
1600
3200
6400
12800
25600
51200
102400

That’s just each individual bet. Keep in mind that you have to add each one up to know how much you’ve already lost. So, for example, at the $6,400 bet, you’re actually in for $12,700.

And when you win, your profit is just whatever your original bet was. Say you’re unlucky and get all the way to the $102,400 bet. But then you win. Overall you’re only up $100.

And when you have a winning streak? You’re still only getting $100 profit per win.

Edit: just go try it on any free version of a game like roulette. Bet red every time, and double your bet whenever you lose. Give yourself a bunch of money and start with the smallest bet. You’ll see how it tends to play out.

Anonymous 0 Comments

The Martingale strategy has been shown to work mathematically IF you have unlimited money AND there is no bet limit , despite occasional catastrophic losses. BUT the amount you would win is small enough to not even matter to someone with infinite money.

Anonymous 0 Comments

I did this at the Runescape dual arena which was a legitiment 50/50. Worked great was making a ton of cash. Then I lost 23 times in a row and was bankrupt.