Ever been sucked into the allure of making a quick buck at the bookies? I know that game all too well. You've got games like roulette where your chances seem almost fair – it's you against 36 numbers, right? But toss in the 0 and 00, especially stateside, and your shot at winning on red or black isn't as sweet as it looks. If you're putting down a buck, fairness would have you pocketing $2.111, but the house skims a bit off the top, leaving you with two bucks and them with a tidy little earner.
This ain't just in casinos either; sports betting's the same deal. Horse races, football games – the bookmakers know their stuff, fixing the odds so they come out on top. But here's the kicker: setting those odds(https://gambleinvestigations.com/) isn't as straightforward as roulette's fixed probabilities, and that's where things start to get interesting.
That little voice whispering in your ear? It's asking if there's a secret formula out there, a way to outsmart the bookies and rake in some dough.
And guess what? Some brainy folks like Lisandro Kaunitz from the University of Tokyo and his buddies have cracked it – they've sussed out a way to make a consistent profit betting on soccer games online.
But here comes the catch – once the bookmakers clocked what these guys were up to, they put a stop to their betting spree, just like that.
Loads of punters have tried to hustle the system, but it's rare to pull it off. Bookies aren't messing around; they've got whole teams crunching numbers to make sure they've got the edge. Kaunitz and his crew reckoned that no one's managed to outdo these odds with better stats... until now.
Thing is, the bookies have a soft spot, a chink in their armor. It's all about how they balance their books to avoid getting stung by big payouts(https://www.udemy.com/course/learn-everything-about-sports-betting-wager-and-win/).
Take a soccer match – the bookmakers lay out the odds for a win, loss, or draw. If a ton of people start backing a particular outcome for whatever reason – maybe it's a fan favorite – the bookies could be in for a massive payout. To dodge that, they'll sweeten the odds on the other side, tempting enough bets to cover their potential losses.
According to Kaunitz and his mates, that's where the golden opportunity lies. They've fine-tuned a way to spot odds that are more about public opinion than actual probability.
Their tactic? Assume the bookies are usually on point with their odds. The average of all the odds across the board pretty much nails the real chances of a win, loss, or draw, along with their own margin.
After that, it's a no-brainer – just sift through the odds on offer to pinpoint the odd ones out. Kaunitz and company worked out the value of these outliers, and if the numbers were good, they'd bet on it and, in the long run, win.
Their secret weapon? A custom web crawler that hunted down the odds offered by online betting outfits on soccer games worldwide. They figured out the average odds, spotted the outliers, and calculated if a bet would lean in their favor.
Before diving in with real cash, they put their theory to the test using a decade's worth of soccer game data – some 479,440 matches from 2005 to 2015. The simulation showed they'd win 44 percent of the time, with a profit yield of 3.5 percent. Imagine slapping down $50 per bet; you're looking at a tidy sum of just shy of $99,000 over more than 56,000 bets.
But was it just a fluke? They ran 2,000 random bet simulations to check. The random bets only paid out 39 percent of the time with a -3.2 percent return – that's like tossing $93,000 down the drain.
The odds of their first result being sheer luck? Less than 1 in a billion. So, feeling pretty confident, the team wondered if they could pull this off in real life, where bettors don't always get those closing odds.
The squad then simulated real-life betting, placing wagers on odds from 1 to 5 hours before kickoff. They even built a bot to scoop up these odds from betting sites over half a year. This time, they scored even higher – nearly half their bets paid off with a 9.9 percent return(https://playtoday.co/blog/gaming-basics/history-and-evolution-of-crash-gambling/). Betting $50 a pop, they would've bagged about $35,000 from 7,000 bets.
Even a random betting strategy turned a profit – thanks to the cutthroat competition between online betting companies that sometimes dangle better odds to lure in gamblers.
Next up, "paper trading" – that's like make-believe betting with live odds to see if you could actually get those odds in the real world. Even here, they made bank – a 5.5 percent profit over three months.
And then, the real deal: actual cash bets. Over five months, they won 47.2 percent of the time and pocketed an 8.5 percent return.
Now, you might have spotted they placed fewer bets than in their test runs. That's because they weren't betting round-the-clock, which meant some opportunities slipped through the cracks. But it didn't matter; the strategy was solid.
Here's where it gets bittersweet. They had this genius method, but as soon as they started to see real success, the bookies clamped down hard. They either capped how much they could bet or demanded a "manual inspection" of the bet before it was approved.
If the bookies were picking bets to question at random, it shouldn't have affected their strategy. But Kaunitz and co reckon it wasn't random at all – the bookmakers were onto them, and it torpedoed their plan.
The team wasn't chuffed, to say the least. They'd played by the rules, but when they started winning, the bookies shut them down. Talk about double standards.
They're calling foul, saying this sort of behavior could be illegal – like bait-and-switch advertising, which is a big no-no in the UK, Australia, and the US.
The researchers are throwing down the gauntlet, challenging governments to get the gambling industry in line and stop these shenanigans(https://everymatrix.com/players-guide-world-of-financial-betting/).
Whether any of this will spark change, who knows? But one thing's for sure – Kaunitz and team found a loophole and made it work, at least for a while. Makes you wonder, right?
Ref: arxiv.org/abs/1710.02824 : Beating the Bookies with Their Own Numbers—And How the Online Sports Betting Market Is Rigged
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