Seattle Mariners vs Toronto Blue Jays All-Time Record

American League
Seattle Mariners
Toronto Blue Jays
Blue Jays lead Mariners236to216since 1977

Retrosheet history through 2025, plus 6 final games from the current feed.

2026 season series: Blue Jays lead 4-2

By

Data updated 6 min read

At a glance

All-time since 1977 · current-feed analysis, 2002 to 2026

Seattle Mariners vs Toronto Blue Jays insights

Current-feed record
+9wins for Blue Jays
52% Blue Jays · 48% Mariners

Blue Jays have pulled further ahead since 2023: 19-12.

Recent form
7-13last 20
Blue Jays on a 3-game streak

Blue Jays won 7-0 on Aug 30, 2026

Where it matters
9Postseason games

9 postseason games across 2 postseasons since 2002.

Schedule context
  • Blue Jays built the series lead before the 2023 schedule change, taking 77 of 152 decided meetings (51%).
  • Since the schedule balanced out they are 19-12, or 61% to Blue Jays.

Mariners vs Blue Jays postseason head-to-head record

Seattle Mariners and Toronto Blue Jays have met 452 times since 1977, 9 times in the postseason. The playoff games are included in the all-time total, not added on top of it.

Postseason record
Mariners 5-4
9 postseason games since 1977
Playoff share
2.0%
Share of all meetings
Regular season
443
Recorded non-postseason meetings
Win Percentage
87W
96W
SEA
TOR
48%52%
Seattle MarinersToronto Blue Jays

Recent Games

Last 10 Games
Aug 30
TOR 7-0 SEA
TOR
Aug 29
TOR 4-3 SEA
TOR
Aug 28
TOR 8-1 SEA
TOR
Jul 5
SEA 4-0 TOR
SEA
Jul 4
SEA 11-0 TOR
SEA
Jul 3
SEA 0-2 TOR
TOR
Oct 20Postseason
TOR 4-3 SEA
TOR
Oct 19Postseason
TOR 6-2 SEA
TOR
Oct 17Postseason
SEA 6-2 TOR
SEA
Oct 16Postseason
SEA 2-8 TOR
TOR
Last Meeting
Aug 30, 2026Final
TOR
7
HOME
SEA
0
AWAY
Blue Jayswon by7runs
Blue Jays' 3rd straight in this series·Game 183 since 2002
Streaks & Momentum
Current Streak
Toronto Blue Jays: 3 consecutive wins
3
Avg. Margin of Victory
Games decided by 3.3 runs on average
3.3runs
Momentum (Last 10 vs Archive since 2002)
SEA↓Trending Down
Last 1030%
Archive since 200247.5%
TOR↑Trending Up
Last 1070%
Archive since 200252.5%
Last 10 Results
SEA / TOR

Record since 2002

Season Split & Biggest Wins
Regular season vs Postseason record, plus each team's largest margin of victory
Regular Season174 games
82
92
Postseason9 games
5
4
Seattle Mariners Biggest Win
15–2+13 runs
May 16, 2002
Toronto Blue Jays Biggest Win
10–0+10 runs
Sep 13, 2006
Decade Breakdown
Choose a decade to scope the current-feed page
Season by Season
Season ↓SEA ↕TOR ↕Games ↕
2026246
20255813
2024246
2023336
2022729
2021426
2019426
2018347
2017167
2016336
2015426
2014437
2013336
2012639
2011369
2010235
2009347
2008549
2007459
2006459
20054610
2004279
2003347
2002639

All 24 seasons are shown in the table above.

Home / Away Split
47-36SEA HOME60-40TOR HOME
AWAY
40-60
SEA
AWAY
36-47
TOR
Retrosheet archiveComplete through 2025

Seattle Mariners vs Toronto Blue Jays all-time record, 1977 to 2025

Explore how this matchup changed by decade, where each lineup produced its runs, and the games that pushed the rivalry record book. This archive is a separate source window from the current-feed sections above, which start in 2002.

Games
446
Peak inning
3
Record game
26 runs
Two source windows. Current-feed sections: 183 games from 2002 to 2026. History Lab: 446 Retrosheet games from 1977 to 2025. The first refreshes with current finals; Retrosheet's published archive currently ends in 2025.

Decade balance

Select an era to inspect pace, scoring and attendance.

The information used here was obtained free of charge from and is copyrighted by Retrosheet. Interested parties may contact Retrosheet at www.retrosheet.org.

Open source archive

Betting Context

Betting context since 2002

How this pairing has settled: run margins, totals and break-even prices derived from its historical record. These are final-score frequencies, not results against a closing line. We do not hold historical sportsbook prices for these games.

One-run games
29%

Share of the 183 decided meetings settled by exactly one run.

Won by 2 or more
71%

A 2+ run margin crosses 1.5, but this is not a historical line result. Average gap: 3.3.

Average total
8.9runs

Final-score average without accounting for park, bullpen or weather.

Home side wins
58.5%

Share of decided meetings won by the listed home team.

Totals ladder

Where the combined score landed against the half-run lines a book normally posts. Half runs cannot push, so every meeting falls on one side.

LineOverUnderOver rate
7.510875
59%
8.5Closest to even9588
51.9%
9.571112
38.8%

Fair price from the base rate

The decimal price that corresponds exactly to each club's win share in this archive. It describes the record and does not estimate the next game.

Toronto Blue Jays
96 W · 52.5%1.91
Seattle Mariners
87 W · 47.5%2.10

A base rate is not a forecast. Starting pitchers, lineups, injuries and venue all matter more to a single game than a multi-season head-to-head record.

Last 20 meetings vs full history

One-run games
15%vs 29% full archive
-14% in the last 20
Won by 2 or more
85%vs 71% full archive
+14% in the last 20
Average total
8.6 runsvs 8.9 runs full archive
-0.3 runs in the last 20

Seasons 2024 to 2026. The comparison shows whether the last 20 final scores differ from the longer archive, without assigning a cause or predicting what comes next.

View the break-even percentages in another odds format with the odds converter, or compare current prices for Blue Jays and Mariners in the oddsmatcher.

Questions about this record: Seattle Mariners vs Toronto Blue Jays

What is the Seattle Mariners vs Toronto Blue Jays postseason record?

The postseason subset contains 9 games: Seattle Mariners have 5 wins and Toronto Blue Jays have 4 wins. Those games are already included in the complete series from 1977 through 2026.

How do recent Seattle Mariners vs Toronto Blue Jays results compare with the complete record?

Toronto Blue Jays have won 7 of the latest 10 decided meetings. Toronto Blue Jays lead the decided record 236-216. The recent window is a subset of the complete series from 1977 through 2026, so the page reports the two separately.

When did the Seattle Mariners and Toronto Blue Jays first play each other?

The Retrosheet archive's first recorded meeting for this pairing is May 9, 1977, when Toronto Blue Jays beat Seattle Mariners 10-4 at home. The archive covers 446 meetings from 1977 through 2025. The current feed starts in 2002 and is reported separately.

About Erik Andersson

Erik Andersson is SharkBetting's Content & Marketing Specialist. His published work focuses on betting methodology, market analysis, regulation and consumer education.

The source windows, derivations and update process for this data page are documented in the methodology above.

View full profile →

Methodology & Data Sources

Current MLB game logs come from the balldontlie API and cover the 2002 season onward. Scores and schedule anomalies are checked against the official MLB Stats API. Spring training is excluded, while results from earlier franchise identities are merged into the current club.

The all-time record and the History Lab use Retrosheet game logs through 2025, with inning lines, team totals, attendance, duration and ballpark fields when available. Final games after 2025 come from the current feed, and every section built on that feed alone is labeled as starting in 2002.

The betting context summarizes completed final scores only. It contains no sportsbook closing lines and summarizes only completed games. Report a possible error through our contact page with the matchup and game date.

Read the full H2H data methodology →

Last updated Sources: balldontlie, MLB Stats API, Retrosheet

Seattle Mariners and Toronto Blue Jays have met 183 times in this archive, which covers the 2002 season onward.