Kansas City Royals versus Seattle Mariners Head-to-head history

SportsJaw’s stored game records date back to 2015. The news feed shows up to the five most recent completed meetings.

Head-to-head history

Last five meetings

Recent game recaps, recorded odds and betting results

May 24, 2026	Score	Moneyline	Run line	Game total
Seattle MarinersSEA	6	-120 L	-1.5 (+135) L	O 8 (-110) W U 8 (-110) L
Kansas City RoyalsKC	8	+105 W	+1.5 (-155) W

Kansas City Royals defeated Seattle Mariners 8-6

Kansas City Royals defeated Seattle Mariners 8-6 on May 24, 2026, a 2-run decision in the series. Kansas City Royals' strongest period was the 5th inning, when it outscored its opponent 4-0. Against SportsJaw's recorded Seattle Mariners -1.5 (+135) spread, Kansas City Royals covered, while the 14 combined runs finished over the recorded total of 8.

Team	1	2	3	4	5	6	7	8	9	T
SEA	1	0	0	0	0	0	2	0	3	6
KC	0	0	0	0	4	1	1	2	—	8

May 23, 2026	Score	Moneyline	Run line	Game total
Seattle MarinersSEA	0	-125 L	-1.5 (+130) L	O 8.5 (-110) L U 8.5 (-110) W
Kansas City RoyalsKC	5	+108 W	+1.5 (-150) W

Kansas City Royals defeated Seattle Mariners 5-0

Kansas City Royals defeated Seattle Mariners 5-0 on May 23, 2026, a 5-run decision in the series. Kansas City Royals' strongest period was the 1st inning, when it outscored its opponent 3-0. Against SportsJaw's recorded Seattle Mariners -1.5 (+130) spread, Kansas City Royals covered, while the 5 combined runs finished under the recorded total of 8.5.

Team	1	2	3	4	5	6	7	8	9	T
SEA	0	0	0	0	0	0	0	0	0	0
KC	3	0	1	0	0	1	0	0	—	5

May 22, 2026	Score	Moneyline	Run line	Game total
Seattle MarinersSEA	2	-113 W	-1.5 (+145) W	O 8 (-110) L U 8 (-110) W
Kansas City RoyalsKC	0	+100 L	+1.5 (-168) L

Seattle Mariners defeated Kansas City Royals 2-0

Seattle Mariners defeated Kansas City Royals 2-0 on May 22, 2026, a 2-run decision in the series. Seattle Mariners' strongest period was the 7th inning, when it outscored its opponent 2-0. Against SportsJaw's recorded Seattle Mariners -1.5 (+145) spread, Seattle Mariners covered, while the 2 combined runs finished under the recorded total of 8.

Team	1	2	3	4	5	6	7	8	9	T
SEA	0	0	0	0	0	0	2	0	0	2
KC	0	0	0	0	0	0	0	0	0	0

May 3, 2026	Score	Moneyline	Run line	Game total
Kansas City RoyalsKC	4	-107 W	+0.25 (-205) W	O 7.5 (-110) L U 7.5 (-110) W
Seattle MarinersSEA	1	-110 L	-0.25 (+176) L

May 2, 2026	Score	Moneyline	Run line	Game total
Kansas City RoyalsKC	3	+120 W	+1.5 (-180) W	O 8 (-110) L U 8 (-110) W
Seattle MarinersSEA	2	-136 L	-1.5 (+153) L

Verified performance

Experts who know these teams

Weighted grade based on 75% profit from head-to-head bets and 25% from profits earned betting on either team.

1PeytoncWeighted grade83+$2,154 · 8 picks5–3 W–L · 62.5%2CovergirlWeighted grade75+$1,554 · 8 picks5–3 W–L · 62.5%3JtmcentireWeighted grade68+$3,866 · 6 picks5–1 W–L · 83.3%

RankHandicapperGradeProfit

4Vfernandez4–2 W–L · 66.7%66+$2,4235Oddsshark26–9 W–L · 74.3%65+$1,1816Coolio19–8 W–L · 70.4%65+$7177Novacek844–2 W–L · 66.7%63+$2,1128Lockpicker694–2 W–L · 66.7%61+$1,9959Steveh3–3 W–L · 50.0%59+$1,34410Rc5–1 W–L · 83.3%56+$71011Johnmizner4–1 W–L · 80.0%54+$2,31312Mikehuff3–4 W–L · 42.9%54+$21113Drpaul4–1 W–L · 80.0%52+$1,47614Hustle$2–3 W–L · 40.0%51+$1,06015Ironcladlocks4–0 W–L · 100.0%50+$2,72916Krockpicks3–1 W–L · 75.0%50+$2,03317Jamescashiola3–1 W–L · 75.0%50+$1,42518Mtgoldstein3–1 W–L · 75.0%48+$93319Tpham2–3 W–L · 40.0%48+$36920Irishblue3–1 W–L · 75.0%46+$1,529

Expert grades weight verified head-to-head profit at 75% and profit on other games involving either team at 25%, with a confidence adjustment until ten qualifying picks are recorded.