Callshot

Callshot is a live sports prediction battle royale running on Solana. Players pay a fixed entry fee to join a room, then answer real-time prediction questions as the match unfolds; one wrong answer means elimination, and the last players standing split the entire pot. Questions are generated from live game state, which requires real-time score data.

The platform describes itself as odds-less: it neither acts as a house setting fixed odds nor trades shares in binary outcomes. Instead, entry fees pool together and are distributed by survival, with settlement and pool management handled by smart contracts and assets held by the players. The team reported roughly 1,500 users on Product Hunt. Compared with conventional sportsbooks, it converts the contest from odds betting into an elimination quiz, and argues the format is hard to bot or for a small group to dominate over time.