Data quality warningNo trading activity
Data as of Sep 20, 2026, 6:00 AM UTC · policy pm-quality-3
Current implied probability
SEA 0%
Market quality
22 / 100
Low quality24h Volume
—
Liquidity
—
Liquidity unknownMarket data
Updated 4 minutes ago
Trends
0%
0%
Related Markets
Related questions for context, not a comparison of equivalent contracts.
Houston Astros vs. Seattle Mariners
PolymarketHouston Astros vs. Seattle Mariners
PolymarketMLB: Seattle Mariners vs Colorado Rockies (Sep 19, 2026)
Robinhood (Rothera)MLB: Seattle Mariners vs Colorado Rockies (Sep 20, 2026)
Robinhood (Rothera)MLB: Atlanta Braves vs Houston Astros (Sep 19, 2026)
Robinhood (Rothera)Houston Astros vs. Atlanta Braves
FutuurRules
Rothera Exchange cleared market: MLB: Houston Astros vs Seattle Mariners (Sep 22, 2026).
- Prices are from end-of-day exchange clearing settlement.
Open markets
Sports
KALSHIPurdue vs UCLA
- UCLA+10.0pt95%
- Purdue-10.0pt5%
- Total Vol
- $6.6M
- 24h Vol
- $6.4M
KALSHIFresno St. vs San Jose St.
- Fresno St.+6.0pt74.8%
- San Jose St.-8.0pt25.3%
- Total Vol
- $4.5M
- 24h Vol
- $4.4M
KALSHI2027 Pro Football Champion
- Los Angeles R+1.0pt11.3%
- Buffalo-2.0pt9.6%
- Baltimore7%
+29 more outcomes
- Total Vol
- $119.3M
- 24h Vol
KALSHIBiltmore Championship Asheville Winner
- Neal Shipley+13.0pt40.6%
- Ben Kohles+8.0pt31.7%
- Eric Cole+1.1pt5.9%
+97 more outcomes
- Total Vol
KALSHIPurdue vs UCLA: Spread
- UCLA wins by over 2.5 points+9.0pt94%
- UCLA wins by over 4.5 points94%
- UCLA wins by over 3.5 points+13.0pt92%
+30 more outcomes
- Total Vol
KALSHIBMW PGA Championship Winner
- Rory McIlroy+1.0pt12.4%
- J.J. Spaun+8.5pt10.7%
- Manuel Elvira+8.1pt8.3%
+97 more outcomes
- Total Vol
- College Football National Championship Winner
- Hibino vs Ito
- Washington Nationals vs. St. Louis Cardinals
- Fresno St. vs San Jose St.: Spread
- EPL: 2027 Champion
- Heisman Trophy Winner
- Purdue vs UCLA: Total Points
- New York Yankees vs. Arizona Diamondbacks
- Atletico vs Real Madrid
- Miami Marlins vs. San Diego Padres
- Minnesota Twins vs. Los Angeles Angels
- UEFA Champions League: 2027 Champion
Frequently asked questions
- What are the current odds for MLB: Houston Astros vs Seattle Mariners (Sep 22, 2026)?
- Robinhood (Rothera) prices SEA at 0% as of September 20, 2026.
- When does MLB: Houston Astros vs Seattle Mariners (Sep 22, 2026) resolve?
- MLB: Houston Astros vs Seattle Mariners (Sep 22, 2026) is scheduled to resolve on September 25, 2026.
- How is MLB: Houston Astros vs Seattle Mariners (Sep 22, 2026) settled?
- Robinhood (Rothera) settles this market as follows: Rothera Exchange cleared market: MLB: Houston Astros vs Seattle Mariners (Sep 22, 2026).