The Seattle Mariners had a strong opening homestand at T-Mobile Park, averaging 28,492 per contest in six games versus the Boston Red Sox and Los Angeles Angels.
Opening Night was at 96% capacity with an attendance of 45,601. The ballpark capacity is 47,447.
The final game of the homestand versus the Angels the Mariners drew 13,567, 29% of capacity.
Here’s how the Mariners rank in raw attendance for home games after the first full week of the 2019 MLB season.
| RANK | TEAM | AVG |
| 1 | Los Angeles Dodgers | 46,332 |
| 2 | Colorado Rockies | 45,838 |
| 3 | St. Louis Cardinals | 45,149 |
| 4 | Philadelphia Phillies | 40,487 |
| 5 | New York Mets | 40,087 |
| 6 | Los Angeles Angels | 39,234 |
| 7 | Arizona Diamondbacks | 38,624 |
| 8 | Milwaukee Brewers | 37,885 |
| 9 | Houston Astros | 37,518 |
| 10 | New York Yankees | 37,440 |
| 11 | Atlanta Braves | 35,085 |
| 12 | Baltimore Orioles | 34,929 |
| 13 | San Francisco Giants | 34,823 |
| 14 | Washington Nationals | 31,685 |
| 15 | Texas Rangers | 31,636 |
| 16 | San Diego Padres | 31,332 |
| 17 | Seattle Mariners | 28,492 |
| 18 | Detroit Tigers | 26,603 |
| 19 | Chicago White Sox | 25,506 |
| 20 | Minnesota Twins | 23,467 |
| 21 | Oakland Athletics | 23,127 |
| 22 | Toronto Blue Jays | 19,805 |
| 23 | Cincinnati Reds | 18,843 |
| 24 | Pittsburgh Pirates | 18,809 |
| 25 | Cleveland Indians | 17,359 |
| 26 | Kansas City Royals | 15,695 |
| 27 | Tampa Bay Rays | 15,064 |
| 28 | Miami Marlins | 9,576 |
| 29 | Boston Red Sox | 0 |
| 30 | Chicago Cubs | 0 |
