Kortsmit pulled off his heroics 54 minutes into Rotterdam's Eredivisie clash with Den Haag, who were leading courtesy of Nasser El Khayati's goal 10 minutes earlier.
First, Erik Falkenburg unleashed a low drive towards goal from point-blank range which the 25-year-old goalkeeper did well to parry, and then denied the same player's rebound.
He was only halfway through his work, though: next, Bjorn Johnsen's smashed attempt took a wicked deflection off Sherel Floranus, which Kortsmit kept out – arguably the best of his four saves. He then rose to bat away Johnsen's header on the follow-up.
Unfortunately for him, his team-mates couldn't get a goal to pull Sparta Rotterdam back into the contest, which ended 1-0.
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