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MLBHead-to-Head2026 Season

Kansas City Royals vs Seattle Mariners · 2026 Season

Last updated: April 15, 2026

6 meetings tracked · closing-line graded

Across 6 2026 season meetings, Kansas City Royals lead 5-1. Games have averaged 7.3 combined points.

RECORD

5-1

MEETINGS

6

ATS

5-1

O / U

2-4

Key Insights

  • ▸Kansas City Royals lead 5-1 across 6 tracked meetings.
  • ▸Games have averaged 7.3 combined points.
  • ▸Kansas City Royals have been the better ATS side (5-1).
  • ▸Strong Under trend: 2-4 O/U.

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Frequently Asked Questions

What is the Kansas City Royals vs Seattle Mariners record all-time?▾

Across 6 all-time meetings, the Kansas City Royals lead the series 5-1.

What is the ATS trend in Kansas City Royals vs Seattle Mariners games?▾

ATS: Kansas City Royals are 5-1 vs the spread in these matchups. Seattle Mariners are 1-5.

Do Kansas City Royals vs Seattle Mariners games go over or under?▾

Over/under: games between Kansas City Royals and Seattle Mariners have gone over 2 times and under 4 times, with an average combined score of 7.3.

When did Kansas City Royals and Seattle Mariners last play?▾

See Last Meetings section for detailed score, spread, and total data from the most recent Kansas City Royals vs Seattle Mariners games.

Where can I see the 5-year Kansas City Royals vs Seattle Mariners history?▾

A 5-year head-to-head page tracks every Kansas City Royals vs Seattle Mariners meeting from the last five full seasons. Link at the bottom of this page.

Head-to-head data derived from closing-line game records. Stats update nightly from graded game results.

For informational and entertainment purposes only. Not betting advice. Please gamble responsibly.

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