Cincinnati Reds vs Seattle Mariners MLB Prediction and Pick, Today's MLB Betting Picks, 7-21-2026

Cincinnati Reds vs Seattle Mariners MLB Prediction and Pick, 7-21-2026. Today’s MLB Betting Picks – Best available odds at YouWager.lv. Claim your signup bonus.

Our Cincinnati Reds vs Seattle Mariners Pick: REDS

Cincinnati is the recommended pick in this matchup because the Reds have the pitching advantage with Chase Burns on the mound and enough offensive power to challenge Seattle’s staff. Burns has shown strong potential early in his career, posting a 3.16 ERA, 1.177 WHIP, and an impressive strikeout rate while limiting opponents to just 7.3 hits per nine innings. Seattle’s pitching numbers are solid overall, but the Mariners’ offense has struggled badly, ranking near the bottom of MLB with just 4.02 runs per game and a .228 team batting average. Cincinnati has more power potential with 129 home runs and a slightly stronger scoring profile. While the Reds’ bullpen and pitching staff have been inconsistent, Seattle’s lack of offensive production creates a major disadvantage. With Burns providing a reliable starter matchup and Cincinnati bringing more run-producing upside, the Reds offer the better value to win.

MATCHUP	Reds	Mariners
Cincinnati Reds vs Seattle Mariners Moneyline	+1265	-152
Where	T-Mobile Park in Seattle, WA
When	Tuesday, July 21, 2026

Cincinnati Reds vs Seattle Mariners MLB Prediction – 7-21-2026 – MLB Betting Picks

Here is our Cincinnati Reds vs Seattle Mariners MLB Prediction for both teams:

Cincinnati Reds vs Seattle Mariners MLB Prediction: Reds Preview

Next in this Cincinnati Reds vs Seattle Mariners MLB Prediction we have the reds preview.

There have been 919 times that Cincinnati has been rung up, and there have been 358 times that they have drawn a walk. Cincinnati has a slugging rate of.401. In addition to the 761 hits they have collected this season, they have also contributed 395 runs batted in, and their batting average with the bat is.231. There have been 152 two-baggers recorded by the Reds as a team, and they have hit 129 baseballs that have been hit out of the park. A total of 414 runs have been scored by them, and their on-base percentage is.311. The Cincinnati Reds are currently ranked 21st in the league with a run average of 4.2 per game, which is the average for all of their games.

In addition, the pitching staff has a WHIP of 1.43 as a whole, and their strikeout to walk ratio is 1.86. The pitchers for the Reds have allowed 133 long balls in addition to 473 total runs, which places them 22nd in the league at this point. Cincinnati has given up 822 hits, which is equivalent to 8.5 hits per nine innings, and 443 earned runs. The Reds have a team earned run average of 4.57 on the season, which places them 23rd in the league, and their pitching staff has rung up 793 batters. During the course of the season, they have walked 427 players from the opposing team, and their fielding percentage average (FIP) is 4.89.

The relievers for the Reds have entered the game in 90 different save situations, and they have a cumulative save rate of 55.3% across the board. Over the course of the year, they have made a total of 21 saves, but they have failed to save 17 of the 38 opportunities they have had to do so. There have been 152 base runners that have been inherited by relief pitchers during the season, and 27.0% of those runners have earned a run for their respective teams. There have been 109 instances in which Reds relief pitchers have taken the mound with runners on base, and they have also made 114 appearances in high leverage situations. Throughout the course of the season, the Reds have sent 348 bullpen pitchers to the mound because of their need for relief. At the end of the season, the relievers have a total of 51 holds, which places them sixteenth in Major League Baseball.

Over the course of this season, the Cincinnati Reds have racked up 2,616 putouts, in addition to 799 assists and 52 errors that have been committed. A total of 71 double plays have been committed by them, and their fielding percentage is currently at.985, which places them in the 18th position in the professional baseball rankings. Out of the 7,848 innings that the Reds have played, they have converted 70.5% of the balls that have been hit into play into outs, which places them in the 12th spot in baseball.

Over the course of his career, Burns has thrown more than 145 innings and has a total of 185 strikeouts to his credit. Burns has a career record of 11-4 and a 3.11 earned run average (FIP) while facing 601 batters in the major leagues. His career record is now with Burns. The ERA he has is 3.16, and he has allowed 51 earned runs. His WHIP is 1.177. A total of 53 walks have been issued to him, and he has allowed 118 hits (7.3 hits per 9 innings).

Cincinnati Reds vs Seattle Mariners MLB Prediction by YouWager.lv.

Cincinnati Reds vs Seattle Mariners MLB Prediction: Mariners Preview

Now on this Cincinnati Reds vs Seattle Mariners MLB Prediction, we have the Mariners preview.

A batting average of.228 and an on-base percentage of.309 have been accumulated by the Seattle Mariners throughout the course of the season. They have a total of 752 base hits and have struck out 860 times, which ranks eleventh in the entire sport of baseball. In addition to getting 387 runs batted in, Seattle has hit 118 home runs so far this season. The Seattle Mariners have a slugging percentage of.377 and score 4.02 runs per game, which places them in the 28th spot in the baseball league. In addition to having 122 doubles, they have also walked 334 times and scored 402 runs through their play.

During the course of the season, the Mariners have a team WHIP of 1.180 and a FIP of 3.54 for their pitching staff. Their pitching staff has a total of 795 hits allowed, which places them thirteenth in the Major League Baseball. Over the course of this season, the Seattle pitching staff has allowed 389 runs to be scored against them, and they have a team earned run average of 3.61 (355 earned runs conceded). Their strikeout-to-base ratio is 8.80, which means that they have 862 strikeouts against 249 bases on balls. They come in sixth place in the Major League Baseball with 3.96 runs per nine innings and have allowed 95 home runs.

There are 96 inherited base runners, and the bullpen pitchers for Seattle have a scoring rate of 29.2% for inherited base runners. It has been 104 times that their relievers have stepped onto the hill in high leverage situations, in addition to the 70 times that they have done so with runners on base. Of the 94 save opportunities that the Mariners have been presented with, they have recorded 55 holds and 15 blown saves. In addition to having a save percentage of 60.5%, they have sent 298 relief pitchers to the mound throughout the season, which places them in the nineteenth spot in the league.

As a result of playing 7,968 innings, the Mariners have a defensive efficiency of 69.6%, which places them twenty-first among all professional baseball teams. There have been 85 double plays turned by the Seattle Mariners, and their fielding percentage is.985, which places them seventeenth in the major leagues. This season, the Mariners have accumulated a total of 2,656 putouts, 811 assists, and 52 errors throughout the course of the season.

Castillo has a career record of 87-92, and he has a 3.64 earned run average. However, he has consistently allowed 7.8 hits per nine innings. In his professional baseball career, he has faced 6,214 batters from opposing teams, and his strikeout to walk ratio is 3.27. He has also faced 6,214 batters. He has a WHIP of 1.189 and a FIP of 3.6, and he has allowed 605 earned runs to be scored against him since he began his career. Castillo has a career total of 1,497 innings pitched, during which he has allowed 1,300 base knocks and has recorded 1,574 strikeouts.

Cincinnati Reds vs Seattle Mariners MLB Prediction by YouWager.lv.

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Cincinnati Reds vs Seattle Mariners MLB Prediction and Pick, 7-21-2026. MLB Betting Picks, by YouWagert.lv

Cincinnati Reds vs Seattle Mariners MLB Prediction and Pick, Today’s MLB Betting Picks, 7-21-2026