If your entry/exit conditions present themselves multiple times in a match and you're within the boundaries of whatever you've decided to risk on that match then sure.
There's no set "correct" number of trades to place per market, you just need to be re-evaluating as the match progresses based on what's happening in the game and be aware of the increased risk the later it gets due to "dangerous" events making the prices swing wider.
Don't evaluate the next trade based on confidence built in the last one. Evaluate the current conditions on their own merit. Ask yourself whether you'd still be placing that next trade if it was the first trade you were placing for that match.