New Polymarket activity shows an account down more than $1.3 million buying $300,000 in Spurs spread positions before Game 4 of the Western Conference semifinal. The trader purchased $190,000 on Spurs -5.5 at 49 cents and $110,000 on Spurs -4.5 at 53 cents. The game was scheduled to start at 7:30 a.m. Beijing time, with the series standing at 2-1 Spurs. This adds a new large sports-related trade on Polymarket alongside the previously tracked Spurs-Timberwolves and Thunder-Lakers positions.