Mariners vs Royals Betting Record — 2025
Against the Spread
4-3-0
Win %
57.14%
ROI
+18.68%
Units
+1.3
Moneyline
4-3-0
Win %
57.14%
ROI
-2.8%
Units
-0.2
Over Rate
4-3-0
Win %
57.14%
ROI
+5.17%
Units
+0.4
From the Other Side — Royals vs Mariners
Against the Spread
3-4-0
Win %
42.86%
ROI
-17.44%
Units
-1.2
Moneyline
3-4-0
Win %
42.86%
ROI
-15.95%
Units
-1.1
Over Rate
4-3-0
Win %
57.14%
ROI
+5.17%
Units
+0.4
Venue Splits
Mariners Home
2-2-0 ATS
50% • -5.07%
2-2-0 ML (50%)
Royals Home
1-2-0 ATS
33.33% • -12%
1-2-0 ML (33.33%)
Scoring Averages
Mariners
4.7
PPG
3.6
allowed
Total
8.3
Avg
7
games
Royals
3.6
PPG
4.7
allowed
Recent Matchups (2025)
| Date | Score | ATS | ML | O/U |
|---|---|---|---|---|
| 09/182025-09-18 | W 0-2 | ✓ | W | U |
| 09/172025-09-17 | L 7-5 | ✗ | L | O |
| 09/162025-09-16 | W 5-12 | ✓ | W | O |
| 07/032025-07-03 | L 2-3 | ✓ | L | U |
| 07/022025-07-02 | W 3-2 | ✗ | W | U |
| 07/012025-07-01 | L 3-6 | ✗ | L | O |
| 06/302025-06-30 | W 6-2 | ✓ | W | O |
Frequently Asked Questions
What is the Seattle Mariners vs Kansas City Royals all-time record?
The Seattle Mariners are 4-3 against the Kansas City Royals in 2025 in head-to-head matchups.
What is the Seattle Mariners ATS record vs the Kansas City Royals?
The Seattle Mariners are 4-3-0 against the spread vs the Kansas City Royals in 2025 on DraftKings, with +18.68% ROI.
Do Seattle Mariners vs Kansas City Royals games go over or under?
Seattle Mariners vs Kansas City Royals games average 8.3 total points in 2025. The Over has hit 57.14% of the time.

Inside Edge
