MLB matchup analysis

Rockies vs Nationals Prediction, Odds and Model Pick

Tuesday, August 25, 2026 at Nationals Park · 6:45 PM ET

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Pass

LyDia decision: Pass on Rockies vs Nationals

Lab Rating
5.6/10
Model lean
Nationals 67.0%
Market probability
58.5%
Model edge
+8.6%
Best moneyline
-146
Sportsbooks checked
9
LyDia model
67.0%
Market
58.5%

The case for Washington Nationals

Starting pitcher edge: 13 points
LyDia gives Andrew Alvarez a 13-point edge over TBD, driven mainly by expected innings (4.8 vs 4.5).
Late-inning bullpen advantage
Colorado Rockies relievers have a 4.78 ERA over the last 7 days; Washington Nationals relievers have a 3.00. Colorado Rockies also have 5 arms pitching on back-to-back days, against 3 for Washington Nationals. If this is still close after six innings, that gap favors Washington Nationals.

The case for Colorado Rockies

The case is thin
The model finds little going Colorado Rockies's way — it trails on the pitching plan, bullpen, and recent form. The main path to a Colorado Rockies win is variance.

Why it is not official

Setup quality below the bar
Lab Rating is 5.6/10, under the 7.2/10 required for an official pick.
Cold stretch at the plate
Washington Nationals is -0.041 wOBA below its own season form.

Why the setup score is what it is

Conviction: 6.03/10
LyDia's win probability for Washington Nationals (67.0%) is well clear of a coin flip -- this is a real, stated lean, not a guess.
Pitching plan: 19.5/30
Andrew Alvarez rates 13 points better than TBD on LyDia's pitcher score. That is a real edge, and it earns most or all of the available credit here.
Bullpen: 6.78/10
Washington Nationals's bullpen carries a real edge over Colorado Rockies's tonight.
Offense: 23.58/50
Washington Nationals's recent form does not clearly outpace Colorado Rockies's.

Why the price is what it is

Team strength: 41.8%
Before any pitcher or bullpen adjustment, LyDia's team-strength model alone makes Washington Nationals 41.8% to win. Everything below moves the price from this starting point.
Pitcher score gap: 13 points
The pitcher-score gap favors Washington Nationals by 13 points. This is the biggest single mover of the price -- a large gap moves it a lot, a small gap barely moves it.
Bullpen adjustment: +0.048
The bullpen-fatigue gap between the two pens nudges the price toward Washington Nationals. This moves the price less than the starting pitchers do, since a starter covers more of the game than the bullpen.
Net effect: 41.8% -> 67.0%
Team strength alone had Washington Nationals at 41.8%. After the pitcher and bullpen terms, the price is 67.0% -- the same number shown as Model Lean above.
The verdict LyDia passes. This is a bullpen game -- no confirmed traditional starter, so LyDia does not publish an official pick here.
Read the full model output

This is a bullpen game -- no confirmed traditional starter, so LyDia does not publish an official pick here.

Game information

MatchupColorado Rockies at Washington Nationals
DateTuesday, August 25, 2026
First pitch6:45 PM ET
VenueNationals Park
Starting pitchersTBD vs Andrew Alvarez
WeatherGame-time forecast: 81°F, 0% precipitation chance, 2 mph wind from NW.

Starting pitcher matchup

Full Pitcher Matchup Tool →
TBDRockies
vs
Andrew AlvarezNationals · LHP
MetricRockiesNationals
Pitching planRole unknownTraditional starter
Expected innings4⅔5
ThrowsNot availableL
LyDia pitcher score (higher is better)5063
ERA (lower is better)Not available3.60
WHIP (lower is better)Not available1.34
K/9 (higher is better)Not available8.3
K-BB% (higher is better)Not available11.2%
K% (higher is better)Not available21.8%
BB% (lower is better)Not available10.6%
BB/9 (lower is better)Not available4.0
HR/9 (lower is better)Not available0.5
Ground-ball rateNot available56.8%
Fly-ball rateNot available43.2%

Pitcher edge: LyDia gives Andrew Alvarez a 13-point edge over TBD, driven mainly by expected innings (4.8 vs 4.5).

How to read this: the scorecards above name the starters; every number lives in this table. Highlighted cells mark a gap big enough to matter. K% and BB% are strikeout and walk rate as a share of batters faced -- K-BB% is the two combined into one skill number. HR/9 is home runs allowed per nine innings. Ground-ball and fly-ball rate are neither good nor bad on their own: high ground-ball pitchers trade strikeouts for double plays and fewer home runs, and on this data source the two rates are complementary (they add to 100%), not independent reads.

Strikeout Projections Full strikeout projections →

Andrew Alvarez strikeouts
4.4 LyDia projected Ks
No K play · -0.1K difference is below LyDia's 0.7K threshold
Market 4.5K · O -130 / U +115 · 4 books

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

Neither side is playing well. Rockies are 2-8 in their last 10 and averaging 4.0 runs per game over the last 15 days; Nationals are 2-8 in their last 10 and averaging 4.0 runs per game over the last 15 days. On the season Nationals carry the better run differential per game (+0.15 against -1.11).

MetricRockiesNationals
Last 102-82-8
Last 10 by venue (away team on the road, home team at home)5-5 on the road6-4 at home
OPS, last 15 days0.6580.648
wOBA, last 15 days (hot/cold read)0.2940.291
Runs per game, last 15 days4.04.0
K% last 15 days (lower is better)23.8%22.8%

Last 15 days only. Hot and cold streaks for all 30 teams live on the Stats page.

30-day offense

Full offense tool →
Last 30 daysRockiesNationals
OPS0.716 (-0.022 vs szn)0.698 (-0.058 vs szn)
Runs per game4.60 (-0.133 vs szn)4.32 (-0.904 vs szn)
wOBA (model offense input)0.314 (-0.010 vs szn)0.310 (-0.021 vs szn)
K% (lower is better)23.7% (+0.9% vs szn)22.2% (+0.6% vs szn)

Over the last 30 days the Rockies have been the better offense, 0.314 wOBA to 0.310. They are cooling off against their own season line (-0.010 wOBA).

Season profile

Full Stats page →
MetricRockiesNationals
Record50-8162-71
Run differential / game (team quality)-1.11+0.15
Runs scored / game (offense, season)4.735.23
Runs allowed / game (defense, season, lower better)5.855.08
Season OPS0.7380.756
K% season (lower is better)22.8%21.6%
OPS vs opposing hand (season)0.696Not available

Season-long team quality, not recent form. Run differential and run environment come from the season standings; splits for all 30 teams live on the Stats page, including the run environment table.

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

Rockies
Combined risk
7.0 Tired
Fatigue
6.7 Tired
Efficiency
4.5 Average
Nationals
Combined risk
5.4 Normal
Fatigue
5.7 Normal
Efficiency
5.7 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.

MetricRockiesNationals
Fatigue6.7/10, Tired5.7/10, Normal
Efficiency4.5/10, Average5.7/10, Effective
Combined risk7.0/10, Tired5.4/10, Normal
Relief innings, last 7 days26.324.0
Back-to-back arms53
7-day ERA4.783.00
7-day WHIP1.371.33

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
6.9
Market total
8.5
Projected away runs
3.2
Projected home runs
3.2
Over price
-102
Under price
-113
Colorado Rockies team total
3.2 projected
Line 3.5 · O -113 / U -104
No team-total lean
Washington Nationals team total
3.2 projected
Line 4.5 · O +102 / U -120
Under research lean (-1.3)

The model projects 1.6 runs below 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.

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