The Circa Survivor pro football contest experienced a massive wave of eliminations during the opening week of the season. A total of 25,017 entries registered for the Las Vegas based event hosted by Circa Sports, creating a prize pool of $25,017,000. However, early upsets proved fatal for thousands of contestants, knocking out 32.2% of the initial field in just a few days. The biggest factor in the high casualty rate was a shocking upset involving Los Angeles and Arizona. Los Angeles entered the matchup tied as an 8.5 point favorite, leading 7,585 participants to select them. That single game accounted…