Pérez arrives on six days of extended rest, which matters for outing length and pitch depth. His Aug 22 start against this same Washington lineup produced five innings, one earned run, and four strikeouts. Before that: six scoreless at Cincinnati, then seven scoreless against Pittsburgh with seven strikeouts. His trajectory is pointing toward longer, sharper outings. Kent's recent pattern moves the other direction. His last three starts covered 4.2 innings, 3.2 innings, and 4.0 innings, with 11 runs allowed across those appearances. He has never recorded an out in the fifth inning in his career. With Richard Lovelady and PJ Poulin both on the 60-day injured list, Washington's relief staff will be stretched by the middle frames again, compounding an already difficult setup.

Washington is 29-38 at home this season and 3-7 over their last 10 games. Their record against right-handed pitching sits at 40-54, which is the specific split that applies directly to Pérez tonight. Miami holds a 7-3 head-to-head edge over Washington in 2026, and that dominance is built on exactly this kind of pitching mismatch. The Marlins carry a 26-39 road record, a real headwind, but the starter quality gap here is wide enough to override typical road-team variance. Nationals Park is a neutral environment, run factor 1.0 and HR factor 1.02, so there is no park inflation distorting either pitcher's line.

One name to track carefully in the Washington lineup is José Tena, who carries a .667 average and a 1.417 OPS in 4 career plate appearances against Pérez, including a 2.000 OPS in his 2 PA this season. Small sample, real number, and exactly the kind of anomaly that keeps a tight game tight. On the Miami side, Heriberto Hernández (.903 OPS vs LHP) and Javier Sanoja (.881 OPS vs LHP) bring strong platoon advantages against Kent, a left-hander with a command problem. Context says Miami. But context also says this is a 0.7-run projected margin, not a blowout.

• Pérez's 9.7 K/9 against a lineup that is 40-54 vs RHP this season is the cleanest structural edge on the board. He has allowed just one earned run across his last 12.0 innings combined.
• Kent averages 4.1 innings over his last three starts and has walked 11 batters in 12.1 career innings. The Nationals bullpen, missing Lovelady and Poulin on 60-day IL, gets tested early and often.
• Washington is 29-38 at home this season with a 3-7 record over their last 10 games. The home-field edge provides no structural comfort with this roster construction and this starter.
• Our model projects the final at MIA 4.4, WSH 3.7, a margin of just 0.7 runs. The modal outcome here is a 1-run Miami win, which is an important number when reading the run-line market.
• Miami is 7-3 in head-to-head matchups against Washington in 2026. That record is anchored by pitching advantages like the one that exists tonight.
• Tena at .667 AVG and 1.417 OPS in 4 career PA vs Pérez is a small-sample wildcard that could keep Washington in a close game. CJ Abrams, by contrast, hits .154 with a 0.616 OPS across 13 career PA against Pérez, making him a reliable strikeout candidate.

The best single expression of tonight's edge is the Marlins moneyline. You are paying for a starter who has allowed one earned run in 12.0 innings facing a starter who has allowed 11 runs in 12.1 innings. The Pérez strikeout prop is the most reliable variable in this game, and it pairs cleanly with the CJ Abrams under. Abrams hitting .154 with a 0.616 OPS across 13 career PA against Pérez is not a small-sample fluke. It is a pattern across multiple seasons. The Heriberto Hernández total-bases prop on the other side acknowledges that Kent will give live at-bats to platoon-advantage hitters, and Hernández is the clearest example on the Miami roster facing Washington's left-hander.

Honest caveat: Washington enters on a win, Pérez already faced this lineup six days ago (familiarity cuts both ways), and Miami's 26-39 road record reflects real tendencies. Context strongly favors Miami. A nine-inning sample always carries variance. Bet within your limits. For the full slate, see our MLB picks today, NRFI picks, and player props.