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Rockies vs Guardians Prediction 8/21/26 MLB Picks Today

Cleveland Guardians (62-66) vs. Colorado Rockies (50-77)
August 21, 2026 8:40 pm EDT
The Line: Colorado Rockies 138 / Cleveland Guardians -148; Over/Under: 10.5
(Get latest betting odds)

In this article we will formulate a Rockies vs Guardians prediction for this MLB game on Friday, August 21st at Coors Field in Denver, Colorado. Let’s take a look at the prediction for this MLB matchup. 

Colorado Rockies Betting Preview

The Colorado Rockies are 50-77 this season after they lost all three against the Dodgers by scores of 5-11, 6-7, and 4-6. In game three, Colorado tied the game at four in the seventh inning, but couldn’t find anymore offense in the loss. The Rockies recorded nine hits in the game and they were led by Moniak, who went 3-5 with one home run and two RBIs. Freeland allowed six hits and four earned runs over 3.2 innings, while Herget picked up the loss. Prior to that series, Colorado won two out of three against the Giants and two out of three against the Diamondbacks. 

This season, Colorado has a 5.51 ERA with a 1.52 WHIP and a .288 opponent batting average, while they have scored 611 runs with a .254 batting average and a .323 on base percentage. Hunter Goodman has led the Rockies with 34 home runs and 69 RBIs, while TJ Rumfield has added 13 home runs and 60 RBIs. The projected starting pitcher for Colorado is Tanner Gordon, who is 0-3 with a 5.55 ERA and a 1.44 WHIP over 71.1 innings pitched this season. 

Cleveland Guardians Betting Preview

The Cleveland Guardians are 62-66 this year after they won two out of three against the Giants by scores of 8-1, 0-1, and 5-2. In game three, Cleveland had their lead cut to 3-2 in the fourth inning, but they scored once in the sixth and once in the eighth to pull away with the win. The Guardians recorded nine hits in the game and they were led by Ramirez, who went 1-4 with one RBI. Williams allowed four hits and two earned runs over 5.2 innings for the win, while Smith picked up the save. Prior to that series, Cleveland lost two out of three against the Padres and two out of three against the Tigers. 

This season, Cleveland has a 3.79 ERA with a 1.27 WHIP and a .237 opponent batting average, while they have scored 507 runs with a .233 batting average and a .313 on base percentage. Chase DeLauter has led the Guardians with 13 home runs and 57 RBIs, while Angel Martinez has added 12 home runs and 44 RBIs. The projected starting pitcher for Cleveland is Joey Cantillo, who is 9-7 with a 3.80 ERA and a 1.44 WHIP over 125.2 innings pitched this year. 

Why the Colorado Rockies will win

  • The Guardians have lost each of their last seven games as favorites following a win.
  • The Rockies have won five of their last six games as underdogs against AL Central opponents following a loss.
  • The Guardians have failed to cover the run line in each of their last eight games following a win.
  • The Rockies have covered the run line each of their last seven games against American League opponents that held a losing record.
  • The Rockies have won the first inning in three of their last four games against American League opponents that held a losing record.
  • The Rockies have led after 5 innings in each of their last four night games at Coors Field against AL Central opponents.
  • The Rockies have led after 3 innings in each of their last three night games against American League opponents that held a losing record.

Why the Cleveland Guardians will win

  • The Rockies have lost each of their last 10 home games after going to extra innings.
  • The favorites have won each of the Rockies’ last eight games at Coors Field.
  • The Guardians have covered the run line in eight of their last nine road games against NL West opponents.
  • The Rockies have failed to cover the run line in eight of their last nine home games after going to extra innings.
  • The Guardians have won the first inning in each of their last four games as road favorites against NL West opponents.
  • The Rockies have trailed after 5 innings in each of their last five games.
  • The Guardians have led after 3 innings in nine of their last 10 games as favorites against NL West opponents.

Total Runs Facts

  • Ten of the Guardians’ last 11 road games against NL West opponents have gone UNDER the total runs line.
  • Five of the Rockies’ last six night games against American League opponents have gone OVER the total runs line.
  • There has been at least one run scored in the first inning in each of the Rockies’ last nine games as underdogs against American League opponents.
  • There has been at least one run scored in the first inning in each of the Guardians’ last four games as road favorites against NL West opponents.

Colorado Rockies Player Prop Facts

  • TJ Rumfield has recorded at least one hit in each of the Rockies’ last 17 night games against opponents that held a losing record.
  • Zac Veen has hit a home run in three of his last four appearances after not playing the previous day.
  • Jake McCarthy ranks 9th amongst qualified players for Batting Average (.295) this season.

Cleveland Guardians Player Prop Facts

  • Chase DeLauter has recorded two or more hits in each of his last four appearances against opponents that held a losing record.
  • Joey Cantillo has recorded six or more strikeouts in each of his last five road appearances against opponents that held a losing record.
  • Jo Adell has hit a home run in each of his last three appearances in night games against teams that held a losing record.
  • Jose Ramirez ranks T7th in the league in Steals (29) this season.

Matchup/League Facts

  • The Rockies rank 1st in the league for doubles this season (233).
  • The Rockies rank 30th in the league for ERA this season (5.51).
  • The Guardians rank 30th in the league for slugging percentage this season (.368).
  • The Guardians rank 29th in the league for runs scored this season (507).

Rockies vs Guardians Prediction 

Colorado comes into this matchup after getting swept at home by the Dodgers and they have allowed 6+ runs in five straight games. The Rockies are 27-35 at home this year, while the Guardians are 31-32 on the road. Cleveland has alternated wins and losses over their last five games and they have allowed two runs or fewer in four of their last five. The Guardians are starting Cantillo, who has allowed two earned runs or fewer in three straight starts, while Gordon has allowed two earned runs or fewer in five straight outings. I am going to take the Guardians on the moneyline, even though the price is elevated. 

David Racey's Free Pick: Guardians ML

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David Racey

David started writing about sports in 2015, but sports has been his passion for as long as he can remember. David spends most of his free time watching pretty much anything sports related from Baseball to Tennis and everything in between. David likes to analyze statistics and recent results to form an unbiased opinion on whatever game he is breaking down. Follow David on Twitter at @itsyerboi41

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