March Madness enthusiasts encountered a significant blow on the first day of the tournament, with close to 36 million brackets rendered invalid due to unexpected outcomes in the initial games. The NCAA reported that out of more than 36 million entries on various major online sports platforms, only about 14,000 perfect brackets remained following the first 16 games. This revelation highlighted the unpredictable nature of the tournament, which is known for its surprising upsets that can derail even the most careful predictions.

The day was marked by several shocking victories, with No. 9 seed TCU notably defeating No. 8 seed Ohio State by a narrow margin of 66-64, which alone eliminated millions of perfect brackets. Additionally, Nebraska managed to secure their first-ever NCAA tournament win against Troy with a decisive score of 76-47, further contributing to the bracket busting frenzy. Each upset throughout the day seemed to chip away at the hopes of participants who had high expectations for their predicted outcomes.

The most significant upset came from High Point, who, as a No. 12 seed, defeated No. 5 seed Wisconsin in a thrilling game that ended with a score of 83-82. This outcome was particularly impactful, as it slashed the number of flawless predictions down to just 2.3 million. The chaos of the opening day of March Madness serves as a reminder of the tournament's reputation for unpredictability, engaging fans year after year and keeping the excitement alive as they watch their carefully crafted brackets tumble down in real-time.