As baseball fans eagerly await the start of a new season, CartoDB collaborated with Major League Baseball to create a series of Twitter maps for each opening day game. The project involved mapping tweets for each team's hashtag during their game, revealing interesting stories and fan engagement patterns. The maps showcased the excitement of fans, including bursts of activity during key moments in the games, such as home runs and rain delays. CartoDB used CartoCSS to create the maps, employing various techniques like Torque aggregation function and frame-offset rules to visualize the data. The project not only provided a unique visual representation of fan engagement but also uncovered interesting stories behind the tweets, highlighting the power of cartography in uncovering hidden insights.