.

cards/models.py

@@ -102,9 +102,17 @@ class Dinosaur(models.Model):
         """Convert a 0-100 percent into a 0-5 star score in 0.5 increments."""
         if percent is None:
             return 0.0
-        val = float(percent) * 0.05  # scale 0-100 -> 0-5
+        pct = float(percent)
+        # scale 0-100 -> 0-5
+        val = pct * 0.05
         # round to nearest 0.5
-        return round(val * 2) / 2.0
+        rounded = round(val * 2) / 2.0
+        # Avoid promoting near-100 values to 5.0 via rounding. Only an
+        # exact 100% should map to a full 5.0. Anything less will be
+        # capped at 4.5 to keep 5-star visually reserved for true maxima.
+        if pct >= 100.0:
+            return 5.0
+        return min(rounded, 4.5)
 
     def _stars_string(self, percent):
         """Return a simple star string like '★★★★½' and trailing empty stars '☆'."""