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MLBGame PreviewsArizona Diamondbacks at Washington Nationals
Arizona DiamondbacksArizona Diamondbacks
@
Nationals Park
Washington NationalsWashington Nationals

Match Predictor

Pre-match Prediction
Arizona Diamondbacks
@
Washington Nationals
Arizona Diamondbacks 51%Washington Nationals 49%
Market LinesRun Line: Arizona Diamondbacks -1Total: O/U 10
Model: Under 10
Model projects 9.6 total runs vs 10 line

Arizona Diamondbacks

0022446688101012121414OVERUNDERO/U 10Runs ScoredRuns Allowed
All Over 10
32%
34/105
MLB: 48%
Starter
100%
1/1
vs WSH
20%
1/5
Avg Total
9.0
MLB: 8.9
Game Starter (1) Last Starter vs WSH vs WSH (5)
Kohl Drake #58 · LHP · Age 26
1.80
ERA (2026)
9.0
K/9 (2026)
1
Starts (2026)
11.0
Avg Total (2026)
Last 3:
ND ATH (Jul 21): 5.0IP, 1ER, 5K
Bullpen (2026 Season)Good
ERA: 3.21MLB Avg: 3.959 relievers
Recent: W 6-5W 15-5W 10-6W 3-2L 3-5
Lineup vs Kohl Drake (Career)
No career matchup data — first meaningful meeting

Washington Nationals

Bullpen ERA 5.11 (poor). Late innings could add runs.
0022446688101012121414OVERUNDERO/U 10Runs ScoredRuns Allowed
All Over 10
44%
46/105
MLB: 48%
Starter
63%
5/8
vs ARI
20%
1/5
Avg Total
10.7
MLB: 8.9
Game Starter (8) Last Starter vs ARI vs ARI (5)
Miles Mikolas #36 · RHP · Age 38
5.60
ERA (2026)
4.7
K/9 (2026)
8
Starts (2026)
13.8
Avg Total (2026)
Last 3:
ND @COL (Jul 21): 3.2IP, 3ER, 1K
ND NYY (Jul 11): 4.0IP, 0ER, 0K
W HOU (Jul 06): 6.0IP, 7ER, 3K
vs ARI: L (Apr 14 2024): 4.2 IP, 5 ER, 3 K
Bullpen (2026 Season)Poor
ERA: 5.11MLB Avg: 3.9511 relievers
Workload Alert: Allowed 8 runs on 2026-07-21 vs COL. Bullpen arms likely still recovering.
Recent: W 7-3L 7-8W 8-0L 2-3W 5-3
Lineup vs Miles Mikolas (Career)
BatterPosPAAVGOPSHR
Ketel Marte2B12.1820.9772
Nolan Arenado3B12.5001.8333
Corbin CarrollRF8.1250.5000
Geraldo PerdomoSS7.0000.0000
Max KeplerLF7.2860.5720
Ildemaro Vargas1B3.3330.6660
Adrian Del CastilloDH2.0000.0000
6 batters with no matchup history
Our Top PicksLive Odds
Top PickArizona Diamondbacks ML -125 (MEDIUM). T
Arizona Diamondbacks ML -125 (MEDIUM). The case comes down to documented starter quality versus speculative upside. Mikolas's 5.60 ERA, 20-day rust, a...
PickArizona Diamondbacks -1.5 +118 (LOW). Pl
Arizona Diamondbacks -1.5 +118 (LOW). Plus-money on a run-line requires margin, and a multi-run outcome is plausible given Mikolas's early-exit patter...
PickOver 10.0 Total Runs -120 (LOW). The non
Over 10.0 Total Runs -120 (LOW). The non-model case for the Over is straightforward: Mikolas is allowing runs at a pace consistent with a high-scoring...

Arizona Diamondbacks vs Washington Nationals Game Preview

Start at the mound. That is where this game lives and dies. The Arizona Diamondbacks send Kohl Drake to the rubber for just his second career major league start. The Washington Nationals answer with Miles Mikolas, a 38-year-old right-hander carrying a 5.60 ERA and 21 home runs allowed in 98 innings this season. Two starters at opposite ends of their timelines. One is an open question. The other is a documented problem for his own team.

Mikolas is the sharper edge here, and it cuts against Washington. He has not thrown a pitch in a game for 20 days. His last three starts tell the story: 3.2 innings against Colorado, 4.0 innings against New York, 6.0 innings but 7 earned runs against Houston. That is 13.2 total innings across three outings. He punches nobody out. His K/9 in 2026 sits at 4.69. A contact-heavy pitcher who allows nearly two home runs per nine innings is exactly the kind of arm Arizona hitters target. Nolan Arenado has made that case emphatically: in 12 career plate appearances against Mikolas, he owns a .500 average, a 1.833 OPS, and three home runs. Ketel Marte has hit him for two home runs as well, posting a 0.977 OPS in his 12 career PA against him. Mikolas pitched 4.0 innings and gave up 5 earned runs to this Arizona lineup at Nationals Park last July. Extended rest does not fix a 5.60 ERA or those specific batter-vs-pitcher numbers. It mostly adds rust to an already leaky profile.

Drake is the wildcard everyone in the park has to solve. One MLB start. Five innings, one earned run, five strikeouts against Oakland. A slider-heavy approach that could neutralize a lineup or get lit up by one. What is not a mystery is Washington's track record against left-handed pitching: the Nationals are 22-13 versus southpaws this season. James Wood (28 home runs, 1.136 OPS over the last 28 days) and CJ Abrams (25 home runs, 1.873 OPS over the last seven days at home) lead a dangerous order. Luis García Jr. adds 21 home runs from the middle of the lineup. No Washington hitter has faced Drake before, which creates uncertainty in both directions. The Nationals cannot game-plan off deep film, but Drake has zero data to exploit either. With that group waiting in the first inning, the first-run scenario is live every at-bat.

The broader game context runs in Arizona's favor beyond the mound. Washington is 21-32 at home this season, one of the worst home records among .500 teams in baseball. That entirely removes the venue edge the market might otherwise price in for the home side. Arizona's bullpen ERA sits at 3.21. Washington's relief corps carries a 5.11 ERA. If Mikolas exits in the third or fourth inning after Arenado and Marte do damage, the Diamondbacks have a decisive advantage in every inning that follows. This is the rubber game of a 1-1 series, and the better backend belongs to the road team.

Arizona Diamondbacks vs Washington Nationals Key Insights

  • Mikolas is returning from 20 days of extended rest with a 5.60 ERA, 4.69 K/9, and 21 home runs allowed in 98 innings. Contact-heavy pitchers who do not miss bats age poorly against power lineups, and this Arizona order has eaten him alive historically.
  • Arenado owns a .500 average and 1.833 OPS across 12 career plate appearances against Mikolas, with three home runs. Marte adds a 0.977 OPS and two home runs in 12 PA. Both entered this series with recent form trending upward. This is not a small-sample fluke.
  • Washington is 21-32 at home. For a team sitting at 53-52 overall, that is a striking split. Their road record (32-20) is actually elite. The home-field advantage assumption that typically props up the home moneyline simply does not apply to this venue for this team.
  • Arizona's bullpen (3.21 ERA) has a massive edge over Washington's pen (5.11 ERA). If Mikolas exits early, which his recent pattern suggests he might, the Diamondbacks are better equipped to protect a lead through seven, eight, and nine innings.
  • Drake's single MLB start provides almost no projection surface. Washington is 22-13 against left-handed pitching in 2026, and their top bats carry real power numbers. A first-inning run is plausible from either side given both starters' profiles.
  • Geraldo Perdomo has gone 0-for-7 with a .000 average in career plate appearances against Mikolas. Corbin Carroll has batted .125 in 8 career PA with a .500 OPS against him. Arizona's production against Mikolas is concentrated in Arenado and Marte, not spread evenly across the lineup.

Arizona Diamondbacks vs Washington Nationals Betting Picks

Picks made July 26, 2026 at 05:38 AM ET. Odds shown reflect current market prices.

Arizona Diamondbacks -1.5 +118 (LOW). Pl
Arizona Diamondbacks -1.5 +118 (LOW). Plus-money on a run-line requires margin, and a multi-run outcome is plausible given Mikolas's early-exit pattern (two of his last three starts ended before the fifth inning). At +118, the value compensates for the spread risk. This is a LOW-confidence play because Drake's minimal track record keeps the outcome range wide. Arizona covering by two or more runs is the higher-probability scenario if Mikolas gives up the early damage his recent starts suggest.
Over 10.0 Total Runs -120 (LOW). The non
Over 10.0 Total Runs -120 (LOW). The non-model case for the Over is straightforward: Mikolas is allowing runs at a pace consistent with a high-scoring game, and Drake's debut-level status adds first-inning vulnerability from both sides. The market has priced this accurately, which is why conviction stays at LOW. Two starters with limited ability to extend deep into games creates natural mid-game relief exposure on both sides. The Over becomes more likely if Mikolas departs before the sixth and bullpens carry the load through the final innings.
Kohl Drake Under 3.5 Strikeouts +120 (ME
Kohl Drake Under 3.5 Strikeouts +120 (MEDIUM). Drake struck out five batters in his only MLB start over five innings. Washington is a different test. The Nationals are 22-13 versus left-handed pitching and their top of the order, Abrams (25 HR) and Wood (28 HR), is built to make contact rather than expand zones. If Drake does not last four innings, reaching four strikeouts requires a near-perfect efficiency rate that inexperienced starters rarely sustain in a hostile lineup. At +120, the under on a pitcher with one start is genuine market value.
Nolan Arenado Over 1.5 Total Bases +126
Nolan Arenado Over 1.5 Total Bases +126 (MEDIUM). The career data is the starting point: 12 PA against Mikolas, .500 average, 1.833 OPS, three home runs. The sample came in 2018-2019, which is older, but Mikolas's 2026 version is weaker than the pitcher Arenado faced then. He is allowing 21 home runs in 98 innings (nearly two per nine). Arenado's last seven days show a .998 OPS. His career splits against right-handed pitching are adequate at .741. A neutral park (HR factor 1.02) and a declining pitcher who gives up deep fly balls makes the over 1.5 total bases at plus money a well-supported play.
Corbin Carroll Under 1.5 Hits -200 (MEDI
Corbin Carroll Under 1.5 Hits -200 (MEDIUM). Carroll has batted .125 in 8 career plate appearances against Mikolas with a .500 OPS. His 2024 and 2025 matchup data are both weak, with a .000 OPS in 2 PA in 2024. Beyond the historical split, Carroll is in a cold stretch: his last 28 days show a .564 OPS, well below his season mark. Mikolas is not a strikeout pitcher, but he works ahead in counts and generates weak contact from hitters who chase. Carroll's career tendency against him points toward early outs. The -200 reflects consensus. We align here.
James Wood to Hit a Home Run +270 (LOW).
James Wood to Hit a Home Run +270 (LOW). Wood carries 28 home runs and a 1.136 OPS over the last 28 days. He faces a left-handed pitcher making his second career MLB start at a neutral park. His vL split (.844 OPS) is below his vR mark but still strong in absolute terms. At +270 with an implied 27% probability, the market may be pricing off Wood's full-season rate rather than accounting for his current form. The last seven days show a cooling to .466 OPS, which is the honest caveat. LOW confidence is appropriate, but the matchup is favorable for a power bat in a projected high-scoring game.
YRFI -154 (YES Run Scores in First Innin
YRFI -154 (YES Run Scores in First Inning). Drake is pitching his second career MLB start against the Nationals, who rank among the best lineups in baseball against left-handed pitching (22-13 this season). Abrams (25 HR, 1.873 OPS over the last seven days) and Wood (28 HR) sit at the top of Washington's order. On the other side, Mikolas owns a 5.60 ERA and Arizona carries power threats in Marte and Arenado. Neither pitcher has demonstrated the command to navigate a clean first inning with confidence. The market prices YRFI at -154, and that reflects the legitimate probability here. Two shaky starters and elite power bats in the leadoff spots make a first-inning run the higher-probability outcome.
SGP
SGP: ARI ML + Over 10.0 + Arenado Over 1.5 TB + James Wood HR (4-Leg). These four legs feed the same game narrative. Both starters falter early. Run scoring stays elevated through the middle innings. Arenado collects extra bases against a declining Mikolas. Wood goes deep against a debut-level arm. The ARI win and the high total reinforce each other: a multi-run game where the better lineup converts opportunities and the better bullpen closes it out. As with any same-game parlay, the correlation is the feature and the single-game variance is the risk.

Key Players

Batting AverageARI
Ildemaro Vargas
.270Batting Average
1B
Home RunsARI
Ketel Marte
18Home Runs
2B
Runs Batted InARI
Ketel Marte
60Runs Batted In
2B
Earned Run AverageARI
Eduardo Rodriguez
2.64Earned Run Average
SP
WinsARI
Eduardo Rodriguez
9Wins
SP
StrikeoutsARI
Eduardo Rodriguez
86Strikeouts
SP
Batting AverageWSH
CJ Abrams
.293Batting Average
SS
Home RunsWSH
James Wood
28Home Runs
RF
Runs Batted InWSH
CJ Abrams
79Runs Batted In
SS
Earned Run AverageWSH
Foster Griffin
2.76Earned Run Average
SP
WinsWSH
Foster Griffin
12Wins
SP
StrikeoutsWSH
Cade Cavalli
127Strikeouts
SP

Recent Form

Arizona Diamondbacks
W15-5Athletics
W10-6St. Louis Cardinals
W3-2Washington Nationals
L5-3Washington Nationals
Washington Nationals
W7-3Colorado Rockies
L8-7Colorado Rockies
W8-0Colorado Rockies
L3-2Arizona Diamondbacks
W5-3Arizona Diamondbacks

Arizona Diamondbacks vs Washington Nationals Summary

The pitching data in this game is not ambiguous. Mikolas is pitching the worst season of his career by ERA, returns from 20 days of rust, and faces a lineup with two hitters who have destroyed him historically. Arenado's .500 average and 1.833 OPS in 12 career plate appearances against him is not the kind of batter-vs-pitcher history you dismiss. Marte adds two more home runs and a .977 OPS in his own career sample. That is the primary edge, and it is the foundation for the Diamondbacks ML at -125. Washington's 21-32 home record removes the venue assumption the pricing would normally embed, and Arizona's bullpen superiority (3.21 ERA versus 5.11 ERA) handles the final three innings better than Washington can. The picks here are directionally aligned: ARI ML, the Over 10.0, and the Arenado total bases prop all derive from the same core read on a rust-prone, home-run-prone starter facing a lineup that knows how to hit him.

The honest caveat is Drake. One career MLB start is not a projection. He could work through five innings, keep Washington off the board, and flip the entire game script. Washington is 22-13 against left-handed pitching, and their top hitters have no career data against Drake, which does not mean they cannot figure him out. The run-line play at -1.5 carries genuine spread risk for that reason, and it is listed at LOW confidence accordingly. If you want exposure to this game, the ML at -125 is the cleaner entry. The prop on Arenado over 1.5 total bases at +126 is where the matchup history and current pitcher quality create real value at plus money. For the full slate, see our MLB picks today, NRFI picks, and player props. Bet responsibly. Past performance does not guarantee future results.

Head-to-Head History

Season SeriesSeries tied 1-1
DateMatchupResult
Jul 24, 2026ARI @ WSHARIARI 3-2
Jul 25, 2026ARI @ WSHWSHWSH 5-3

Diamondbacks vs Nationals predictions: Arenado's .500 AVG and 1.833 OPS in 12 career PA vs Mikolas anchor ARI ML -125. Mikolas returns with 5.60 ERA, 20 days rust.

Frequently Asked Questions

MLBGame PreviewsArizona Diamondbacks at Washington Nationals