MLB matchup analysis

Diamondbacks vs Nationals Prediction, Odds and Model Pick

Sunday, July 26, 2026 at Nationals Park · 1:35 PM ET

Pass

LyDia decision: Pass on Diamondbacks vs Nationals

Lab Rating
6.1/10
Model probability
56.5%
Market probability
51.3%
Model edge
+5.1%
Best moneyline
-110
Sportsbooks checked
9
LyDia model
56.5%
Market
51.3%

The case for Arizona Diamondbacks

Market mispricing: +5.1%
LyDia makes Arizona Diamondbacks 56.5% to win while the no-vig market says 51.3%. LyDia rates this side +5.1% better than the price implies, and that gap is why the game is on the board.
Starting pitcher edge: 18 points
Arizona Diamondbacks sends the clearly better starter by LyDia's pitcher score. Gaps this size are one of the model's strongest inputs.
Bats are hot: +0.136 OPS
Arizona Diamondbacks is outhitting its own season form over the last 15 days. Recent form is context, not a model input, but it points the same way here.

Why it is not official

Below the 72.0% official gate
Win probability is 56.5%. LyDia does not make a game official below 72.0%, no matter how good the price is. This is a value spot, not a high-confidence winner.
Setup quality below the bar
Lab Rating is 6.1/10, under the 8.0/10 required for an official pick.
Opponent is swinging it
The other lineup is +0.101 OPS above its season form over the last 15 days.
The verdict LyDia passes. The combined Lab Rating did not clear the official threshold.
Read the full model output

The combined Lab Rating did not clear the official threshold.

Game information

MatchupArizona Diamondbacks at Washington Nationals
DateSunday, July 26, 2026
First pitch1:35 PM ET
VenueNationals Park
Starting pitchersKohl Drake vs Miles Mikolas
WeatherGame-time forecast: 86°F, 2% precipitation chance, 5 mph wind from S.

Starting pitcher matchup

Full Pitcher Matchup Tool →
Kohl DrakeDiamondbacks · LHP
1.80ERA
1.20WHIP
9.0K/9
14.3%K-BB%
vs
Miles MikolasNationals · RHP
5.60ERA
1.34WHIP
4.7K/9
7.4%K-BB%
MetricDiamondbacksNationals
Pitching planTraditional starterTraditional starter
Expected innings5.04.8
ThrowsLR
LyDia pitcher score (higher is better)6951
BB/9 (lower is better)3.61.8
HR/9 (lower is better)0.01.9
Ground-ball rate22.2%51.5%
IP per start (higher is better)5.04.8

Pitcher edge: LyDia gives Kohl Drake a 18-point edge over Miles Mikolas, driven mainly by HR/9 (0.00 vs 1.93) and ERA (1.80 vs 5.60).

How to read this: the scorecards show ERA, WHIP, K/9, and K-BB%. The table adds complementary traits without repeating them. Highlighted cells mark a gap big enough to matter. HR/9 is home runs allowed per nine innings. Ground-ball rate is neither good nor bad on its own: high ground-ball pitchers trade strikeouts for double plays and fewer home runs.

Strikeout Projections Full strikeout projections →

Kohl Drake strikeouts
Not available LyDia projected Ks
Market 3.5K · O -130 / U +116 · 6 books
Miles Mikolas strikeouts
2.3 LyDia projected Ks
No K play · -0.2K difference is below LyDia's 0.7K threshold
Market 2.5K · O -166 / U +129 · 2 books

Projections are self-calibrated against graded results (87 graded starts). Official K picks require a 0.7+ strikeout edge, a posted price from at least two books, and a confirmed non-opener workload of at least four expected innings.

Same data source as the Pitcher Matchup Tool, where every starter on the slate is compared side by side.

Diamondbacks are 7-3 in their last 10, averaging 6.4 runs per game over the last 15 days, and swinging above their season form; Nationals are 5-5 in their last 10, averaging 6.3 runs per game over the last 15 days, and swinging above their season form. Season run differential separates them by almost nothing (+0.00 against +0.26).

MetricDiamondbacksNationals
Record55-5053-52
Last 107-35-5
Run differential / game (team quality)+0.00+0.26
Runs scored / game (offense)4.505.47
Runs allowed / game (defense, lower better)4.505.21
OPS, last 15 days0.8420.872
Season OPS0.7060.771
OPS change+0.136+0.101
Runs per game, last 15 days6.46.3
K% season (lower is better)19.4%21.4%
K% last 15 days18.3%21.5%
OPS vs opposing hand0.6780.797

Run differential and run environment come from the season standings; offense splits for all 30 teams live on the Stats page, including hot and cold streaks and the run environment table.

Every team on today's slate, on any two axes you pick. Diamondbacks and Nationals are highlighted.

Diamondbacks
Combined risk
4.7 Normal
Fatigue
4.9 Normal
Efficiency
5.4 Average
Nationals
Combined risk
5.9 Normal
Fatigue
6.5 Tired
Efficiency
6.2 Effective

Risk is what the model actually uses: fatigue blended with how well the pen has pitched. High fatigue with high efficiency is a tired pen that is still getting outs.

MetricDiamondbacksNationals
Fatigue4.9/10, Normal6.5/10, Tired
Efficiency5.4/10, Average6.2/10, Effective
Combined risk4.7/10, Normal5.9/10, Normal
Relief innings, last 3 days9.011.3
Back-to-back arms00
3-day ERA4.002.38
3-day WHIP1.111.24

Fatigue measures workload. Efficiency measures recent run prevention. Combined risk is what the moneyline and totals systems use.

Run total projection

Full Totals Projections →
LyDia projection
10.9
Market total
10.0
Projected away runs
6.2
Projected home runs
5.5
Over price
-109
Under price
-102
Arizona Diamondbacks team total
6.2 projected
Line 5.5 · O +113 / U -135
Over research lean (+0.7)
Washington Nationals team total
5.5 projected
Line 4.5 · O -115 / U -103
Over research lean (+1.0)

The model projects 0.9 runs above the market total. A research lean still requires a setup rating of at least 7.0/10. Team totals remain research-only until their graded sample is established.

More games today

All matchups →

What could change the prediction

Every LyDia pick, graded in public

Free daily model card by email, or open today's full slate. Membership adds delivery before first pitch.

Today's picks Membership

Model outputs are not guarantees. LyDia provides analysis and education only. Every official pick remains visible on the Results page. 21+. If you or someone you know has a gambling problem, call 1-800-GAMBLER.