Current-feed record
+14wins for Mariners
73% Mariners · 27% Reds
Reds have closed the gap since the 2023 schedule change: 5-7.
Cincinnati Reds vs Seattle Mariners H2H Record
Interleague
Cincinnati Reds
Seattle Mariners
Mariners lead Reds22to8since 2002
Current-feed record from 2002 through 2026.
2026 season series: Reds lead 2-1
Data updated 4 min read
At a glance
Current-feed analysis, 2002 to 2026
Cincinnati Reds vs Seattle Mariners insights
Recent form
7-13last 20
Reds on a 2-game streak
Reds won 5-3 on Jul 22, 2026
Where it matters
0Postseason games
No postseason meetings since 2002.
Schedule context
- Mariners built the series lead before the 2023 schedule change, taking 15 of 18 decided meetings (83%).
- Since the schedule balanced out they are 7-5, or 58% to Mariners.
Reds vs Mariners interleague history by season
Cincinnati Reds and Seattle Mariners met in 10 seasons inside the current feed. Interleague scheduling makes meeting frequency uneven, so the season table matters more than a raw average.
- Active seasons
- 10
- With at least one meeting since 2002
- Busiest season
- 2026
- 3 meetings
- Per active season
- 3.0
- Uneven interleague cadence
Win Percentage
8W
22W
CIN
SEA
27%73%
Cincinnati RedsSeattle Mariners
Recent Games
Last 10 Games
Jul 22
SEA 3-5 CIN
CINJul 21
SEA 2-4 CIN
CINJul 20
SEA 8-0 CIN
SEAApr 17
CIN 7-11 SEA
SEAApr 16
CIN 3-5 SEA
SEAApr 15
CIN 8-4 SEA
CINApr 17
SEA 5-1 CIN
SEAApr 16
SEA 3-1 CIN
SEAApr 15
SEA 9-3 CIN
SEASep 6
CIN 4-8 SEA
SEA| Date | Home | Away | Score | Result |
|---|---|---|---|---|
| Jul 22, 2026 | SEA | CIN | 3–5 | CIN |
| Jul 21, 2026 | SEA | CIN | 2–4 | CIN |
| Jul 20, 2026 | SEA | CIN | 8–0 | SEA |
| Apr 17, 2025 | CIN | SEA | 7–11 | SEA |
| Apr 16, 2025 | CIN | SEA | 3–5 | SEA |
| Apr 15, 2025 | CIN | SEA | 8–4 | CIN |
| Apr 17, 2024 | SEA | CIN | 5–1 | SEA |
| Apr 16, 2024 | SEA | CIN | 3–1 | SEA |
| Apr 15, 2024 | SEA | CIN | 9–3 | SEA |
| Sep 6, 2023 | CIN | SEA | 4–8 | SEA |
Last Meeting
Jul 22, 2026Final
SEA
3
HOME
CIN
5
AWAY
Redswon by2runs
Reds' 2nd straight in this series·Game 30 since 2002
Streaks & Momentum
Current Streak
Cincinnati Reds: 2 consecutive wins
2
Avg. Margin of Victory
Games decided by 3.8 runs on average
3.8runs
Momentum (Last 10 vs Archive since 2002)
CIN-Neutral
Last 1030%
Archive since 200226.7%
SEA-Neutral
Last 1070%
Archive since 200273.3%
Last 10 Results
CIN / SEA
Record since 2002
Season Split & Biggest Wins
Regular season vs Postseason record, plus each team's largest margin of victory
Regular Season30 games
8
22
No postseason meetings appear since 2002.
Cincinnati Reds Biggest Win
16–1+15 runs
Jun 22, 2007
Seattle Mariners Biggest Win
9–1+8 runs
Jun 23, 2007
Decade Breakdown
Choose a decade to scope the current-feed page
Season by Season
| Season ↓ | CIN ↕ | SEA ↕ | Games ↕ |
|---|---|---|---|
| 2026 | 2 | 1 | 3 |
| 2025 | 1 | 2 | 3 |
| 2024 | 0 | 3 | 3 |
| 2023 | 2 | 1 | 3 |
| 2019 | 1 | 2 | 3 |
| 2016 | 0 | 3 | 3 |
| 2013 | 1 | 2 | 3 |
| 2010 | 0 | 3 | 3 |
| 2007 | 1 | 2 | 3 |
| 2002 | 0 | 3 | 3 |
Home / Away Split
AWAY
4-11
CIN
AWAY
11-4
SEA
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.
Small sample: 30 decided meetings, under the 50 we treat as the floor for a stable rate. Read the figures below as description, not a forecast. Interleague pairs meet in short bursts, so a single series can move any percentage here by several points.
One-run games
23.3%
Share of the 30 decided meetings settled by exactly one run.
Won by 2 or more
76.7%
A 2+ run margin crosses 1.5, but this is not a historical line result. Average gap: 3.8.
Average total
8.5runs
Final-score average without accounting for park, bullpen or weather.
Home side wins
50%
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.
| Line | Over | Under | Over rate |
|---|---|---|---|
| 7.5Closest to even | 17 | 13 | 56.7% |
| 8.5 | 13 | 17 | 43.3% |
| 9.5 | 10 | 20 | 33.3% |
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.
Seattle Mariners
22 W · 73.3%1.36
Cincinnati Reds
8 W · 26.7%3.75
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 23.3% full archive
-8.3% in the last 20
Won by 2 or more
85%vs 76.7% full archive
+8.3% in the last 20
Average total
9.6 runsvs 8.5 runs full archive
+1.1 runs in the last 20
Seasons 2013 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 Mariners and Reds in the oddsmatcher.
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 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.
Last updated Sources: balldontlie, MLB Stats API
Cincinnati Reds and Seattle Mariners have met 30 times in this archive, which covers the 2002 season onward.