Developer's DescriptionBy Top Line DFSTopLine is a daily fantasy sports leaderboard app, aimed at giving you a glimpse at what the perfect lineup is live.TopLine is a daily fantasy sports leaderboard app, aimed at giving you a glimpse at what the perfect lineup is live. DFS leaders sorted by position and live points value, showing you the top players in your preferred DFS format. Every slate for MLB baseball and NFL football daily fantasy contests.