| sports | Reddit Sports | 21,909,726 |
| nba | NBA | 15,390,916 |
| nfl | NFL: National Football League Discussion | 12,153,455 |
| soccer | The back page of the internet. | 8,525,841 |
| formula1 | Formula 1 | 5,087,797 |
| PremierLeague | English Premier League | 4,996,303 |
| CFB | The Internet's Tailgate | 4,304,874 |
| running | Running | 3,985,319 |
| MMA | MMA: Mixed Martial Arts | 3,570,984 |
| fantasyfootball | r/fantasyfootball - Getting into the best shape of our lives. | 3,305,998 |
| Boxing | Boxing | 3,074,374 |
| mlb | Major League Baseball | 3,027,183 |
| CollegeBasketball | /r/CollegeBasketball: The Internet's Student Section | 2,933,994 |
| baseball | America's Pastime | 2,833,669 |
| hockey | hockey: the best game on earth | 2,807,299 |
