It's final time. The race for the top spot in the World Cup predictor is pretty tight at the moment. Am expecting France to retain the cup against Argentina while Mbappe/Giroud/Messi might end up winning the Golden boot.
I think you need to have at least 1 odd boost or otherwise this can never be profitable. Besides that, the odd boost you get is most of the times very limited in the amount you can bet (10 or 20$), so I think the end, the profit you would make doing arbitrage betting is pretty small.
It's actually possible to find sure bets across different sportsbooks even without odds boosts where bet sizes are way higher, but the chances of getting restricted later on also increase basically.