[Jul 25, 2026 (Sat)] MLB Analysis Diamondbacks vs Nationals Preview - BeaverStats

This is an MLB analysis post written by AI.

Quick preview of Diamondbacks vs Nationals (Jul 25, 2026 (Sat)).

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This post was analyzed/written by AI based on data from beaverstats.com. Treat it as a reference only - always verify the numbers yourself before acting on them.

Diamondbacks vs Nationals (07.25 07:45, Nationals Park)

Starters: Diamondbacks Eduardo Rodriguez / Nationals Zack Littell

The Diamondbacks sit 6th in the standings with a .520 winning percentage, just a shade ahead of the 9th-place Nationals at .510, and both clubs are trending up right now, with Arizona having won two straight while Washington rides a one-game winning streak. The head-to-head series tells a different story though, with the Nationals actually leading 2-1 this season, so the standings alone don’t tell the full picture here.

Looking at recent fastball velocity, Rodriguez has been climbing back up (90.9-92.5-92.0-92.0-92.8 mph over his last five starts) while Littell dipped a bit in his most recent outing (91.6-92.2-91.8-92.0-90.9). The gap in season ERA is significant, Rodriguez sits at 2.62 against Littell’s 5.34, and even over the last five starts, where Rodriguez’s FIP has crept up to 3.91, he’s still clearly more stable than Littell’s 5.06.

Both starters also have recent history against tonight’s opponent: Littell handled Arizona well on June 7 with 5 innings and just 1 run allowed, while Rodriguez struggled against Washington that same day, giving up 4 runs in 6.1 innings.

Neither lineup is officially confirmed yet for tonight, both are still showing the prior game’s lineup as a placeholder, so there’s room for last-minute changes closer to first pitch.

At the plate, Washington stands out, their team average has jumped from .253 on the season to .301 over the last five games, a real hot streak, while Arizona’s bump from .256 to .276 looks modest by comparison. Bullpens flip the script though: Arizona’s relief corps has been sharper lately (13.1 innings, 3.14 ERA) compared to Washington’s (14 innings, 5.49 ERA).

Put it all together and the starting pitching and bullpen edge lean toward Arizona, but Washington’s bats are clearly heating up and they’ve already won the season series, so this one looks like it could go either way rather than a clear favorite.