One thing that has been shown to be a little sketchy when it comes to arbitrage betting is that bookmakers will scratch odds. This means that underpinning odds will disappear after there has been some betting activity. Surebets only last a few hours, so you need to pay attention so that you do not end up missing out. Also, due to the fast-paced nature of this type of betting, players can sometimes be inundated with different information, which can lead to an error in calculation and a loss of money.