Reds vs. Mariners Odds & Betting Predictions - July 21, 2026
Reds at Mariners
1:40 am • SEAMStarting Pitchers
| pitcher | team | era | w-l | |
|---|---|---|---|---|
![]() | 3.57 | 8-8 | ||
![]() | 3.89 | 5-6 |
Reds at Mariners Odds
Spread, Total, Moneyline
MatchupOpenSpreadTotalMoneyline | ||||
|---|---|---|---|---|
Reds 45-54 | +1.5 | +1.5-177 | o7.5-115 | +127 |
Mariners 51-50 | u7.5 | -1.5+142 | u7.5-106 | -150 |

T-Mobile ParkSeattle
Reds vs. Mariners Expert Picks
Kyle Murray
Last 30d: 64-89-2 (-1.3u)
G.Kirby o6.5 Ks-110
1.1u
Matt Trollo
Last 30d: 82-95-3 (-10.0u)
G.Kirby o6.5 Ks-113
0.57u
(FD) 28.5 K% vs RHBs, proj to face 17. Avg K% of batters proj to face 24.3% vs RHP. No ump help, but 20% park/weather boost
💰🦡 Jake
Last 30d: 72-83-2 (+11.7u)
CIN +130 (F5)
1.25u
Scott Rickenbach
Last 30d: 66-61-3 (-1.7u)
SEA -143
0.7u
Frank Ammirante
Last 30d: 328-376-7 (-41.4u)
CIN +125
0.8u
Wags Wins
Last 30d: 198-185-4 (-3.4u)
Under 7.5+102
1u
Matt Trollo
Last 30d: 82-95-3 (-10.0u)
Under 7.5+102
0.5u
Park suppresses runs MLB high 17%. Abbott’s #s worse than surface results, but SEA 85 wRC+ v LHP, proj LU same L30 days. Kirby 1/5 run better than 3.76 ERA. CIN 86 wRC+ v LHP, proj. LU 92 L30 days.
Reds vs. Mariners Previews & Analysis
Prop Odds Comparison
Line Movement Tracker
Reds vs. Mariners Public Betting Percentages
Betting Trends
- Mariners are 4-1 in their last 5 games.
- Mariners are 3-2 in their last 5 games against the spread
- Mariners are 17-33 in their road games against the spread
- The totals have gone OVER in 3 of Mariners' last 5 games
- The totals have gone OVER in 24 of Mariners' 51 last games at home
Matchup History
Against the Spread (ATS) History
Over/Under History
Last 5 Matchups
Reds vs. Mariners Box Score
Reds Player Stats| PITCHER | PC | IP | K | ER | |
|---|---|---|---|---|---|
![]() | 100 | 6 | 6 | 0 | |
![]() | 16 | 0.1 | 0 | 4 | |
![]() | 12 | 0.2 | 1 | 2 | |
![]() | 13 | 1 | 0 | 1 |
| HITTERS | H-AB | R | HR | RBI |
|---|---|---|---|---|
![]() | 0-3 | 0 | 0 | 0 |
![]() | 0-4 | 0 | 0 | 0 |
![]() | 0-4 | 0 | 0 | 0 |
![]() | 0-2 | 0 | 0 | 0 |
![]() | 0-1 | 0 | 0 | 0 |
![]() | 0-3 | 0 | 0 | 0 |
![]() | 0-3 | 0 | 0 | 0 |
![]() | 1-3 | 0 | 0 | 0 |
![]() | 1-2 | 0 | 0 | 0 |
![]() | 1-3 | 0 | 0 | 0 |
Mariners Player Stats| PITCHER | PC | IP | K | ER | |
|---|---|---|---|---|---|
![]() | 80 | 6 | 6 | 0 | |
![]() | 14 | 1 | 0 | 0 | |
![]() | 21 | 1 | 0 | 0 | |
![]() | 12 | 1 | 3 | 0 |
| HITTERS | H-AB | R | HR | RBI |
|---|---|---|---|---|
![]() | 2-3 | 1 | 0 | 0 |
![]() | 1-3 | 0 | 0 | 1 |
![]() | 1-2 | 1 | 0 | 1 |
![]() | 1-2 | 1 | 0 | 1 |
![]() | 1-4 | 1 | 0 | 0 |
![]() | 1-5 | 1 | 1 | 5 |
![]() | 1-5 | 0 | 0 | 0 |
![]() | 0-3 | 0 | 0 | 0 |
![]() | 4-4 | 2 | 0 | 0 |
![]() | 4-4 | 2 | 0 | 0 |
![]() | 0-2 | 0 | 0 | 0 |
![]() | 1-2 | 1 | 0 | 0 |
![]() | 1-2 | 1 | 0 | 0 |
![]() | 1-3 | 1 | 0 | 1 |
Reds vs. Mariners Odds Comparison
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Reds at Mariners Team Totals
MatchupOverUnder | ||
|---|---|---|
Reds 45-54 | N/A | N/A |
Mariners 51-50 | N/A | N/A |






























