Rays vs. Rockies Prediction, MLB Picks for Monday, August 3 

The Tampa Bay Rays (65-46) and Colorado Rockies (45-67) begin a three-game series at 8:40 p.m. ET on Monday, August 2. The Rays are road favorites, and a win would return a 1.56x payout, per PrizePicks.

Despite losing their last series, the Rays continue to hold a lead in the AL East, though the New York Yankees and a still-hot Boston Red Sox team are within striking distance. For the Rockies, it’s another lost season, but they come in on a three-game win streak after sweeping the Kansas City Royals over the weekend.

Below, we'll break down our Rays vs. Rockies prediction and picks for Monday’s MLB matchup, including the run line, over/under, and key player picks for PrizePicks.

Make your Rays vs. Rockies picks and predictions on PrizePicks now.

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Rays vs. Rockies Prediction, Winner Payout, Over/Under – Monday, August 3

Today’s pitching matchup will feature Rays SP Ian Seymour taking the mound opposite Rockies SP Michael Lorenzen.

Seymour has assumed many roles this season, but he’s operated as a starter and bulk reliever for Tampa Bay since early June. In this role, he’s now produced a 3.67 xFIP, 30.2% strikeout rate, and 6.9% walk rate over his last 10 outings. Those numbers underscore just how effective the left-hander has been in this capacity.

On the other hand, Lorenzen hasn’t found much success as a starter for Colorado, amassing a 6.54 ERA over 104.2 innings. 

While pitching at Coors Field has undoubtedly contributed to that inflated ERA, the veteran right-hander’s underlying numbers have been ugly pretty much across the board.

He’s posted a 5.62 xERA, 15.9% strikeout rate, 46.2% hard-hit rate, and 90.9 mph average exit velocity, all of which place him in the seventh percentile or worse, per Baseball Savant. 

In terms of wRC+, the Rays have produced the league’s seventh-best wRC+ (104), whereas the Rockies are 29th (91), per FanGraphs. However, the gap narrows considerably in expected metrics, as both teams are tied for 27th in xwOBA (.306), suggesting the Rays' offensive results may not be entirely sustainable. 

Rays vs. Rockies Winner Payout, Over/Under – Monday, August 3

The Rays enter Monday’s game as a road favorite against the Rockies, returning a 1.56x payout if they win outright, via PrizePicks Team Picks.

Here are the full payouts for the Rays vs. Rockies game on PrizePicks.

Make your Rays vs. Rockies prediction on the winner or over/under on PrizePicks Team Picks to earn real money — available in 36 states!

Team Picks data is live at the time of writing and is subject to change.

Rays vs. Rockies Prediction on Over/Under – 8/3/26

Here are the key game stats and trends behind our Rays vs. Rockies prediction on the over/under for Monday, August 3.

Lock in your Rays vs. Rockies prediction on PrizePicks now.

• Since the All-Star break, Tampa Bay has posted a 91 wRC+ while Colorado has been even worse with an 83 wRC+.
• The Rays’ bats rank 30th in barrel rate (4.1%) and 29th in hard-hit rate (34.7%). The Rockies aren’t much better, ranking 27th in both barrel rate (4.4%) and hard-hit rate (36.2%).
• Seymour is in the 75th percentile or better in xERA (3.35), K-rate (27.9%), and chase rate (33.1%).
• The Rockies have posted the second-worst wRC+ (83) and seventh-worst ISO (.133) against left-handed pitching in 2026.
• While Coors Field will always be a net positive for offense, the forecast shows 12-13 mph winds blowing in tonight.

Rays vs. Rockies Picks, Player Stats for PrizePicks: 8/3/26

Here are the top Rays vs. Rockies picks to target on Monday, August 3. Today’s MLB picks for PrizePicks include Ian Seymour and TJ Rumfield.

Rays SP Ian Seymour vs. Rockies: 5 Strikeouts

• Colorado has a 25.1% strikeout rate vs. left-handers, the league’s fourth-worst mark.
• Since being utilized as a starter and bulk reliever, Seymour has tallied 5+ Ks in five of his last 10 appearances.
• The Rockies project to start a predominantly right-handed lineup, but that shouldn’t be an issue for Seymour, as he maintains a 27.1% strikeout rate against righties.
• Tampa Bay isn’t afraid to give Seymour an early hook sometimes, but he has a season-high pitch count of 94, so workload isn’t an issue when things are going well.

Add Ian Seymour to your PrizePicks Lineup now.

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Rockies 1B TJ Rumfield vs. Rays: 9.5 Fantasy Score

• Seymour owns a stellar 29.2% strikeout rate and 5.0% walk rate against left-handed batters in 2026.
• Rumfield has struggled in lefty-lefty matchups, posting a .315 wOBA and .103 ISO.
• The Rockies first baseman has poor quality of contact numbers, showing a 5.0% barrel rate (22nd percentile), 27.4% hard-hit rate (fifth percentile), and 83.6 mph average exit velocity (first percentile).
• Dating back to the beginning of July, he’s recorded a .087 ISO with just 1 home run.
• Rumfield has scored double-digit fantasy points only once in the past five games.

Add TJ Rumfield to your PrizePicks Lineup now.

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The Tampa Bay Rays enter Monday's matchup with a favorable opportunity against the Colorado Rockies as they try to remain atop the AL East. Will the Rays capitalize, or can the Rockies play spoiler?

Don’t wait until the first pitch — make your Rays vs. Rockies picks on PrizePicks now and earn real money if you’re right.

Pick players, predict More or Less on their stats, and cash in if you’re right. With Team Picks, you can make predictions on game winners, spreads, and over/unders, now available in 36 states.

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