Multiple tracks sit in a dead heat for the Billboard Hot 100 summit on the July 31 chart, with market-implied odds clustered tightly between 42% and 50% for Song C through Song I, Other, and several legacy or catalog entries. Streaming volume, first-week sales, and radio adds remain the decisive swing factors, as no single release has posted a decisive lead in the final tracking days. Catalog plays such as Billie Jean and Beauty and a Beat continue to draw steady consumption but lack the promotional push needed to overtake newer contenders. Traders are watching the next Spotify and Apple Music update plus any surprise social-media spikes or playlist additions that could break the deadlock before the chart locks.