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Ruse played only three matches in May and June. The last one, she retired from. Considering that she was constantly playing in the first four months (eight tournaments), it can be assumed she had some problems in the last weeks. She played her last match a big less than a month ago, and retired from it, and she hadn't played a single match in May. True, she's beaten Sasnovich in June, but that was the biggest surprise when it came to her defeats. So, that was an exception, not a rule. Ruse's beaten Min and Robson in January. The latter one was still coming back, and Min was in a 5-match losing run. None of the other matches are relevant.
Sevastova hasn't lost to a player ranked lower than top 150 this year, and Ruse is out of top 300. Comparing her weaker opponents, Sevastova's beaten Vickery (out of top 200) by 8 games, Sramkova by 9 games (Sramkova's got the best ranking of her career, 184th), Eguchi by nine games, Dascala by six games in three sets, Mihalikova (out of top 500) by six games, and Larsson by five games, Cepede by eight.
Considering all of that, Sevastova's beaten names much better than Ruse easily, so the direction this match is going to take is obvious. Sevastova didn't make a big mistake, hasn't lose to a player out of top 150, and has beaten weaker opponents convincingly. Even the better opponents. Ruse hasn't played in a month, so the big question is whether she'd even be playing this tournament if she wasn't a local player who got an invite.