Appelgren/Rutgersson look like the steadier, pressure-managing pair in a tight R3 FIP Silver setting, with a higher baseline of structured side-to-side control and fewer volatility swings. Richters/Olsson can win stretches through pace and proactive net takes, but they’ll need cleaner transition patterns to avoid leaking games on serve. Slight edge to Appelgren/Rutgersson in a close three-set type match if they control the middle and convert key points.