The Union Association was a league in Major League Baseball which lasted for only one season in 1884
Standings
| St. Louis Maroons | 94 | 19 | 0.832 | — | 49–6 | 45–13 |
| Cincinnati Outlaw Reds | 69 | 36 | 0.657 | 21 | 35–17 | 34–19 |
| Baltimore Monumentals | 58 | 47 | 0.552 | 32 | 29–21 | 29–26 |
| Boston Reds | 58 | 51 | 0.532 | 34 | 34–22 | 24–29 |
| Milwaukee Brewers | 8 | 5 | 0.615 | 36 | 8–4 | 0–1 |
| St. Paul Saints | 2 | 6 | 0.250 | 39½ | 0–0 | 2–6 |
| Chicago Browns/Pittsburgh Stogies | 41 | 50 | 0.451 | 42 | 21–19 | 20–31 |
| Altoona Mountain City | 6 | 19 | 0.240 | 44 | 6–12 | 0–7 |
| Wilmington Quicksteps | 2 | 16 | 0.111 | 44½ | 1–6 | 1–10 |
| Washington Nationals (UA) | 47 | 65 | 0.420 | 46½ | 36–27 | 11–38 |
| Philadelphia Keystones | 21 | 46 | 0.313 | 50 | 14–21 | 7–25 |
| Kansas City Cowboys | 16 | 63 | 0.203 | 61 | 11–23 | 5–40 |
Movement of Teams
Chicago moved to Pittsburgh in late August then move to Omaha Ne (never played a game) then to St Paul Mn
The Altoona Mountain Citys Pa were a professional baseball franchise that played in Altoona, Pennsylvania in 1884. The Mountain Citys were a charter member of the Union Association, then move to Kansas City Mo.
Philadelpha move to Wilmington De then move to Milwaukee Wi