Watching the chances of victory change injects life into sports, both real and fantasy.
Fantasy sports began as a niche hobby for statistically inclined sports fanatics. But, with the internet, it has evolved into a multi-billion-dollar industry.
For many, the marriage of two American pastimes – gambling and sports – can be almost impossible to resist.
The fledgling industry faces a minefield that could undermine its valuation and growth.
While season-long fantasy football has been around for years, the rise of daily formats has radically changed how fans watch and root for teams.
Football games are now watched through a haze of statistics, generated by betting, fantasy football and video games.