OK.. Please kindly confirm if these are the rules of your strategy so I can backtest it programming a bot:
Basically you check the different economic calendars and news sources available and select a set of events that will probably cause a big move in a related currency pair.
Once you have an event in mind, you place a trade in two different accounts, a buy order in one and a sell order in the other account. Question: you do this how long in advance? 1 hour, 15 minutes, 5 minutes?
You set a 100 pips Stop Loss in both trades, and you hope that the move is big enough so that one trade is stopped, and the other one makes you a larger profit.
Question: do you have any rules for the exit? Like maximum time you leave the trade open, minimum profit you aim for?
Please if you could mention what news events you select, I can load a database with maybe 5 years of news events with date and time, and then I can backtest your strategy.