True - how they have the money to do that though is a mystery....Derek27 wrote: ↑Mon May 27, 2019 5:13 pmI've given up asking the question "why was that backed?" a long time ago.stueytrader wrote: ↑Mon May 27, 2019 4:47 pmI realise it's not justified, hence the horses' finishing positions, just wondered why that's all. Nearly all these ran exactly as in the form book, so nothing hidden.![]()
Everywhere I go I meet people who are completely bonkers so I guess some of them are using the exchange.
Today's Horse Racing
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Are racing markets really that bad...?
Sounds like fantasy island that they are full of massively rich losing punters?
Sounds like fantasy island that they are full of massively rich losing punters?
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Honest question though, are they really that bad/inefficient?
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I've got a spreadsheet that records the overround at best prices. For the last ten minutes before off the best overrounds can be as much as 65/135%. Given that a horse's chances of winning a race doesn't usually change drastically in the last ten minutes, I would say the market is pretty inefficient.stueytrader wrote: ↑Mon May 27, 2019 6:04 pmHonest question though, are they really that bad/inefficient?
- firlandsfarm
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Hi Derek, are you saying you take the highest and lowest price for each runner in the last 10 mins and then work out the highest and lowest Book%?Derek27 wrote: ↑Mon May 27, 2019 6:34 pmI've got a spreadsheet that records the overround at best prices. For the last ten minutes before off the best overrounds can be as much as 65/135%. Given that a horse's chances of winning a race doesn't usually change drastically in the last ten minutes, I would say the market is pretty inefficient.
The 'chance' of winning or not does not change of course except possibly if there has been some shenanigans at the start. It would be interesting if anyone has some stats on that … does a horse 'playing-up' affect it's chance? (Assuming it's not withdrawn!

Sorry, not the highest and lowest concurrent books, but the overround of the highest back prices and lowest lay prices in the last ten minutes. Even when you look at bookies odds in the last ten minutes you have overrounds well under 100% so it's no surprise on the exchange in a volatile market.firlandsfarm wrote: ↑Tue May 28, 2019 8:41 amHi Derek, are you saying you take the highest and lowest price for each runner in the last 10 mins and then work out the highest and lowest Book%?Derek27 wrote: ↑Mon May 27, 2019 6:34 pmI've got a spreadsheet that records the overround at best prices. For the last ten minutes before off the best overrounds can be as much as 65/135%. Given that a horse's chances of winning a race doesn't usually change drastically in the last ten minutes, I would say the market is pretty inefficient.
The 'chance' of winning or not does not change of course except possibly if there has been some shenanigans at the start. It would be interesting if anyone has some stats on that … does a horse 'playing-up' affect it's chance? (Assuming it's not withdrawn!)
How much a horse's chances are affected by being unruly at the start largely depends on the horse itself, for some horses it's normal behaviour. It's one area where bettors who study form will have an advantage over cold traders.
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