Updated September 10, 2026
The Tampa Bay Rays enter Thursday afternoon’s series finale in Atlanta with a chance to complete a sweep of another division leader. Tampa Bay has taken the first 2 games by scores of 7-1 and 7-2, improving to 87-58 while Atlanta has slipped to 85-61. The Rays have also scored at least 6 runs in 5 consecutive games, while the Braves have dropped 3 straight. Tampa Bay sends Nick Martinez to the mound against Atlanta left-hander Martín Pérez at Truist Park, as the visitors look for a statement win in Atlanta.
Why Our Model Sees Value:
“Atlanta's home-field advantage and season-long record appear to be receiving too much weight compared with the current starting pitching gap, Tampa Bay's offensive form, and Atlanta's recent inability to generate consistent offense.”
Rays a slight underdog
Polymarket currently prices Tampa Bay at 48¢, giving the Rays an implied win probability of approximately 48%. Atlanta is priced at 53¢. Trading volume across the Rays-Braves markets is around $96,000, so there has been enough activity for the price to carry some useful information. Still, 48¢ is lower than my estimate of Tampa Bay’s true chance of winning Thursday.
Our projections favor Tampa
My win probability for the Rays is 56%, producing an 8% gap between our model projection and Polymarket’s 48% implied probability. Most of that difference comes from Martinez, who has been considerably steadier than Pérez, combined with the current direction of both offenses. Tampa Bay has already scored 14 runs in the first 2 games of this series and has reached at least 6 runs in 5 consecutive games. Atlanta, meanwhile, has scored only 3 total runs through the first 2 games.
Recommended Prediction:
Rays to Win
Current Market Price:
48¢
Model Win Probability:
56%
Market-Implied Probability:
48%
Model Edge:
8%
Buy Up To:
52¢
Model Trade Confidence:
80/100
Martinez enters Thursday at 14-4 with a 3.04 ERA, 1.10 WHIP, and 95 strikeouts across 160 innings. His ability to limit free passes has been especially valuable. He has issued only 24 walks this season, reducing the number of easy scoring opportunities opponents receive.
His latest outing came September 4 at Texas, where he worked 6 1/3 innings and allowed 3 earned runs on 5 hits and 2 walks in a 7-6 Tampa Bay victory. One start earlier, he gave up 3 runs across 6 innings against San Diego. Before that, he held Baltimore scoreless for 6 innings while allowing only 1 hit and no walks. He has now completed at least 6 innings in each of his last 3 starts.
The Braves were held to 1 run Tuesday and 2 runs Wednesday, and their losing streak has reached 3 games. Martinez does not need a high strikeout total to succeed. His control and ability to work deep into games can force Atlanta to string together hits rather than wait for walks. He is a big reason our Rays vs Braves prediction favors Tampa.
Atlanta counters with Pérez, who is 8-9 with a 3.25 ERA and 94 strikeouts. His full-season ERA is strong, but his latest outing raises some concern. Pérez faced Philadelphia on September 5 and lasted only 3 2/3 innings, surrendering 4 runs on 7 hits and 4 walks in a 4-2 Braves loss.
Now he faces one of baseball’s hottest offenses. Tampa Bay produced 10 hits Wednesday and reached 7 runs for the second straight day against Atlanta. The Rays have received production from several spots rather than relying on one hitter. Junior Caminero entered Wednesday with an American League-leading 39 home runs after launching a 455-foot homer in the series opener. Yandy Díaz, Richie Palacios, Victor Mesa Jr., Jorge Mateo, Liam Hicks and Cedric Mullins have also driven in runs during the first 2 games.
Pérez must also keep his walk total under control. Tampa Bay’s current lineup has done a good job turning extended innings into crooked numbers, something Atlanta has experienced repeatedly during this series.
The Braves still have plenty of dangerous bats. Ronald Acuña Jr., Matt Olson, Austin Riley, Drake Baldwin and Michael Harris II give Atlanta enough talent to change a game quickly.
The issue has been converting that talent into sustained scoring. Atlanta managed only 5 hits Tuesday, then was limited to 2 runs Wednesday. The Braves have repeatedly been forced to chase games after Tampa Bay scores first, putting additional pressure on a lineup that has recently struggled to create longer innings.
Martinez is a difficult pitcher to correct those problems against because he rarely supplies help with walks. If Atlanta wants to avoid the sweep, Acuña, Olson and the middle of the order will probably need to do their damage on hittable pitches early in counts.
The Rays are far from full strength. Shortstop Taylor Walls was placed on the 10-day injured list with a right hip flexor strain. He has hit only .218, but his defense has been a major part of his value, with 21 fielding runs above average this season. Tampa Bay recalled Nick Madrigal as part of the roster adjustment.
The pitching staff also has several unavailable arms. Garrett Cleavinger is out with forearm tightness, Manuel Rodríguez is sidelined by a back strain, and Shane McClanahan is on the injured list with forearm tightness. Those absences reduce Tampa Bay’s pitching depth and are the biggest reason I would not push the Rays projection much higher than 56%.
Atlanta recently placed starter Bryce Elder on the 15-day injured list after knee surgery. Reynaldo López returned from his own knee issue Wednesday but surrendered 6 runs in 4 2/3 innings, which forced Atlanta to use additional pitching before Thursday’s early start.
Atlanta being at home makes this closer than the first 2 games, and Pérez owns a strong season ERA. Even so, Tampa Bay has the better starting pitcher going on Thursday, the more productive offense entering the game, and a team that has already demonstrated it can score against Atlanta’s staff at Truist Park.
At a 48¢ Polymarket price, Tampa Bay is being valued as a slight underdog. My projection makes the Rays a favorite at 56%. There is enough uncertainty in baseball that a sweep should never be treated as an easy outcome, but the current price does not fully account for Martinez’s reliability, Pérez’s rough previous start, Tampa Bay’s sustained run production, and Atlanta’s recent offensive slump.
