Karlsruher SC came from nowhere to stun Arminia Bielefeld 2-1, turning a match that looked heavily weighted toward the visitors on its head. Broschinski did the damage, grabbing both goals—first in the 35th minute with an assist from Wanitzek, then again in the 78th to put the home side firmly in control. Mehlem pulled one back for Bielefeld in the 80th with Young providing the assist, but it came too late to salvage anything from the trip.

On paper, our model had this one down as a Bielefeld win. We fancied a 1-2 scoreline with a 40% lean toward the visitors, mainly because Arminia looked sharp as a tack in recent form while Karlsruher were really struggling. The rest advantage—Bielefeld thirteen days fresh against Karlsruher's six—seemed to tip things further in the away side's favour. The model assigned just a 38% chance to a Karlsruher win, so this result fell well outside what we'd weighted most heavily.

What changed on the night was straightforward: Karlsruher took their chances and Bielefeld didn't, and that's often all it takes. Neither team played badly—the match delivered the kind of open, attacking football the history between them had suggested—but the home side's clinical edge in front of goal proved decisive. Our model missed this one, and that's how it goes sometimes when the favourite doesn't turn up quite as sharp as expected.