Houston Astros at Seattle Mariners: Betting Trends, Sep 22, 2026 (MLB)
The Houston Astros visit the Seattle Mariners on September 22, 2026. This season the Houston Astros have covered the spread in 81 of 153 games (52.9%), and the Seattle Mariners have covered the spread in 58 of 153 games (37.9%) (2026). Every figure on this page is a count of settled games or a line a book posted. DataStreak does not produce picks. Updated September 18, 2026.
Against the spread, 2026 season
Covers of settled games. A cover is a settled game where the final margin beat the closing spread; pushes are left out of the rate.
| Team | Overall | Home | Road | Last 10 |
|---|---|---|---|---|
| Houston Astros | 81 of 153 (52.9%) | 41 of 78 (52.6%) | 40 of 75 (53.3%) | 6 of 10 (60%) |
| Seattle Mariners | 58 of 153 (37.9%) | 28 of 75 (37.3%) | 30 of 78 (38.5%) | 4 of 10 (40%) |
Previous meetings
Finished regular-season games between the two, this season and last, newest first.
| Date | Away | Home |
|---|---|---|
| 2026-08-16 | SEA 3 | HOU 2 |
| 2026-08-15 | SEA 10 | HOU 5 |
| 2026-08-14 | SEA 7 | HOU 10 |
| 2026-05-14 | SEA 8 | HOU 3 |
| 2026-05-13 | SEA 3 | HOU 4 |
| 2026-05-12 | SEA 10 | HOU 2 |
| 2026-05-11 | SEA 3 | HOU 1 |
| 2026-04-13 | HOU 2 | SEA 6 |
| 2026-04-12 | HOU 1 | SEA 6 |
| 2026-04-11 | HOU 7 | SEA 8 |
Houston Astros: last 5 games
| Date | Opp | Result |
|---|---|---|
| 2026-09-17 | vs KC | W 6-2 |
| 2026-09-17 | vs KC | L 2-5 |
| 2026-09-16 | vs KC | W 4-2 |
| 2026-09-13 | @ TB | L 4-14 |
| 2026-09-12 | @ TB | L 2-3 |
Seattle Mariners: last 5 games
| Date | Opp | Result |
|---|---|---|
| 2026-09-17 | @ LAA | W 7-2 |
| 2026-09-16 | @ LAA | L 1-2 |
| 2026-09-15 | @ LAA | L 4-6 |
| 2026-09-13 | @ OAK | L 7-8 |
| 2026-09-13 | @ OAK | W 19-1 |
Over each player's last 20 games, the highest clear rate at the lowest posted rung of each market. Counts of games, not projections; each name opens the player's own page.
HOU players clearing their prop lines most often
| Player | Market | Line | Cleared | Rate |
|---|---|---|---|---|
| Hunter Brown | Pitcher Strikeouts | 3+ strikeouts | 20 of 20 | 100% |
| Peter Lambert | Pitcher Strikeouts | 3+ strikeouts | 20 of 20 | 100% |
| Ronel Blanco | Pitcher Strikeouts | 3+ strikeouts | 14 of 16 | 87.5% |
SEA players clearing their prop lines most often
| Player | Market | Line | Cleared | Rate |
|---|---|---|---|---|
| Logan Gilbert | Pitcher Strikeouts | 3+ strikeouts | 20 of 20 | 100% |
| Bryan Woo | Pitcher Strikeouts | 3+ strikeouts | 20 of 20 | 100% |
| Bryce Miller | Pitcher Strikeouts | 3+ strikeouts | 19 of 20 | 95% |
Questions about Houston Astros at Seattle Mariners
Who has the better record against the spread, the Houston Astros or the Seattle Mariners?
The Houston Astros have covered in 81 of 153 games (52.9%) and the Seattle Mariners in 58 of 153 (37.9%) in the 2026 season, so the Houston Astros have the higher rate. A cover is a settled game where the final margin beat the closing spread; a rate is a count of past games, not a prediction of this one.
How have the last meetings between the Houston Astros and the Seattle Mariners gone?
Of the last 10 regular-season meetings this season and last, the Seattle Mariners won 8 and the Houston Astros won 2. The most recent was SEA 3, HOU 2 on August 16, 2026.
Which players in Houston Astros at Seattle Mariners clear their prop lines most often?
Hunter Brown has cleared 3+ strikeouts in 20 of his last 20 games (100%); Peter Lambert has cleared 3+ strikeouts in 20 of his last 20 games (100%), over each player's last 20 games at the lowest posted rung. Counts of games, not projections.
Are these HOU at SEA numbers picks?
No. Every figure is a count of settled games or a line a book posted, shown with the games it comes from so the arithmetic is checkable. DataStreak does not produce picks. Updated September 18, 2026.
How these numbers are measured
A cover is a settled game where the final margin beat the closing spread; a push is a margin that landed on it. Previous meetings are finished regular-season games between the two teams. The prop rates count the games in which a player's stat reached the line over that player's last 20 games. A posted line is one book's number on one day. Nothing here is a projection.
Both teams' full pages: Houston Astros and Seattle Mariners. The live board with every team and tonight's lines is the MLB ATS Radar. Every MLB player at a glance: MLB player prop hit rates, or read how the boards are built.