Viktoria Plzeň vs. Union Saint-Gilloise

This is the tightest three-way matchup on the entire soccer slate. Viktoria Plzeň at +150 implies roughly 40.0% win probability, Union Saint-Gilloise at +175 implies roughly 36.4%, and the Draw at +255 implies roughly 28.2%. The combined implied probability is approximately 104.6%, meaning the vig is modest. When two sides are priced this closely together — essentially co-favorites — historical three-way soccer market data tells us the Draw is chronically underpriced relative to its true frequency. In matches where neither team is a clear favorite (moneylines within 25 cents of each other), the Draw occurs roughly 27–32% of the time in European competition, yet the market is pricing it at 28.2% implied — which is the floor of that range. Given Plzeň's home advantage is clearly being discounted (they're barely the implied favorite), and Union Saint-Gilloise are a quality Belgian side capable of controlling possession on the road, a tactical, cagey group-stage draw is a highly plausible outcome that the current line barely acknowledges.