I'm a casual sports bettor who wanted to get more from it. So I built something that didn't exist.
I love watching sport. Always have. The anticipation of a big match. The twists and turns. The moments matches are decided on, that have you screaming at the television. I love all of it and, as I've grown older, I've started to also love laying a small wager. Sports betting adds a new dimension to the contest and for anyone who's ever landed a decent payout, you'll know how good it feels not only watching your team win, but seeing them also pick up the bar tab.
There is a problem though. Casual sports bettors are losing a collective fortune. If you look at the explosion of sports betting brands in recent years — headline sponsors of every team and sporting event, prime time adverts during every game — you should be able to tell who's winning. It isn't us.
In my efforts to win more — or at least lose less — I kept finding myself dragged into the fragmented world of sporting pundits and tipsters. After years of deploying that tactic, I honestly couldn't tell you if they are right or wrong any more often than I am. This left me asking a harder question: what can you actually do differently to improve your outcomes?
The answer, in part, suddenly became obvious. Stats and data. That's it — the foundation of every good insight. The harder question was which data, and it arrived from somewhere I wasn't looking.
I was going through my share trading account one evening, and there it all was. Total return since the day I opened it. My best holding and my worst. What I'd paid in fees. How I was tracking against the market. Nobody had to ask for any of it. It's simply considered the bare minimum when a person is putting their money at risk — the same way your banking app breaks down your spending, or your running watch tells you whether you're quicker than you were last year.
Then I opened my betting app. Nothing. No profit and loss. No strike rate. No sense of which sports had been good to me and which had quietly bled me for years. If I wanted to know how I was actually doing, I'd have to scroll back through a buried list of old slips and work it out by hand on a piece of paper.
That struck me as odd. Then it struck me as deliberate. Because the bookmaker has every one of those numbers already. They know precisely how I bet, down to the last leg. They have simply decided I shouldn't get to see it.
That question — why every other industry that takes your money hands you your own numbers, and this one won't — is the reason Betty exists.
Ask any honest casual bettor what their biggest weakness is and most will admit it with a rueful smile. The home favourite they keep backing even though they're on the wrong side of the odds every weekend. The ACCA that starts as three solid legs and ends up as six because the extra zero on the payout was too hard to turn down. The bet placed in the emotion of the moment that, in the cold light of the following Monday, they knew was wrong when they placed it.
These patterns are almost universal. And they are quietly generating record profits for bookmakers. Because bookmakers haven't just built a mathematically engineered game — they've built a platform specifically designed to encourage your worst habits. The bonus booster that climbs as you add more legs. The deposit match that gets you warmed to waging bigger stakes. The notifications timed to pull you back in when you intended to take a break. None of this is accidental. Every element is engineered to keep you placing more and taking greater risk.
Here's the part that I've spent the last 6 months thinking about: bookmakers can see every pattern in your betting history. They know which home favourites you keep backing. They know how often you add that extra ACCA leg. They know exactly where your weaknesses are — but they will never show you, because the gaps in your self-knowledge are an unspoken advantage to them.
They are the only ones with your data. And they are keeping it to themselves.
Betty is the pull to their push. The yin to that yang.
She does one thing. She takes your betslips and turns them into the picture your bookmaker has always held and never shared. Screenshot a slip, send it to her on WhatsApp, and she logs it, tracks the result, and starts building. Which markets you actually win on. How often that home favourite your heart keeps backing has genuinely come through. What happens to your strike rate as the ACCA legs climb. Your real profit and loss, not the version you remember.
All of it lands in a personal insights dashboard in your portal, and it sharpens with every slip you send.
Then there's Sense Check™, which is the part I'm most pleased with. Before you place an ACCA, send Betty the slip. She won't tell you whether it'll win — nobody honestly can. She'll set it against every slip you've built before and pull out observations and patterns that offer a fresh consideration in the moment when it matters — before the money goes down. She's the voice your bookmaker will never provide, because they'd rather you placed it exactly as you always have.
With your consent, your anonymised data also joins our community pool, and a second layer opens up — how everyone else is doing on the shape of bet you've just built, and where your own results sit against that. Are you quietly outperforming on Springboks handicaps? Is there a market where you're consistently behind? That information has always existed. Until now, once again, only the bookmakers had it.
No bookmaker would ever build this. Which is exactly why I did.
Betty is powerful but she's not perfect — no AI tool is at this stage. We're working constantly to improve her accuracy and she gets better with every update. When something doesn't feel right, just type “feedback” in the chat and send it — Betty will then ask what you'd like to share. That's how she gets sharper — for you, for me, and for everyone using her.
We could have built an app. Apps are what everyone builds. But when I thought about how I'd most like to interact when looking to bet, I'd want it done casually — the same way I'd chat with a friend about the big game. That happens on WhatsApp. That's where SA sports bettors already meet, already share their thoughts, already talk about the weekend's fixtures.
An app would have been another thing to download, another platform to check. Betty lives where you already are. You message her the way you'd message a friend — but this friend happens to have kept a careful record of every bet you've ever shown her. No friction. Just a conversation.
Two features, and a dashboard that grows underneath both of them. You can use all of it or dip into one part whenever you need it. There's no right way to do this.
And you can simply ask her things. How's my month going? What's my worst market? Am I actually any good at tennis? She answers from your own numbers, in plain language, on WhatsApp.
For those who want it, Betty also has a quieter side. She can track your spend over time, surface your patterns without judgment, and send a gentle nudge if things look like they're drifting in a direction you didn't intend. None of this is switched on by default — it's there for those who find value in it, and invisible to those who don't.
I built Betty because I wanted her for myself. Something completely on my side. Something that wasn't trying to sell me anything or keep me betting longer than I wanted to. Something honest. Something genuinely helpful.
I hope you enjoy having her next to you as much as I do.
Brian Stephenson · Founder, OddsEven
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