R is the cash you put at risk on a trade. If you risk $100 (1R) and make $250, that is +2.5R; lose the $100 and it is −1R. Expressing results in R makes trades comparable regardless of size.
Thinking in R is what lets you measure the cost of a behaviour: for example, how many R a month of revenge trades quietly removes from the account.
See it on your own trades.
Merlin computes the metrics and rule distances above from your imported history, and checks your next trade against them before you enter.
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Firm figures reflect published rules at the time of writing. Firms revise rules often, so verify against the firm's site before relying on them.
Merlin's gauges derive from closed trades. Your firm watches live equity including open positions.
MerlinTrade is independent trading-journal software and is not affiliated with, endorsed by, or sponsored by any prop firm. All trademarks belong to their owners.