MLB matchup analysis

Angels vs Astros Prediction, Odds and Model Pick

Wednesday, August 19, 2026 at Daikin Park · 8:10 PM ET

Analysis still building. This page is available to users but is not submitted for search indexing until these inputs are complete: pitcher stats.
Pass

LyDia decision: Pass on Angels vs Astros

Lab Rating
6.2/10
Model lean
Angels 74.3%
Market probability
40.9%
Model edge
+33.5%
Best moneyline
+143
Sportsbooks checked
9
LyDia model
74.3%
Market
40.9%

The case for Los Angeles Angels

Starting pitcher edge: 22 points
LyDia gives Walbert Ureña a 22-point edge over Ethan Pecko, driven mainly by expected innings (5.3 vs 4.5).
Late-inning bullpen advantage
Houston Astros relievers have a 3.86 ERA over the last 7 days; Los Angeles Angels relievers have a 2.55. If this is still close after six innings, that gap favors Los Angeles Angels.

The case for Houston Astros

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

Why it is not official

Setup quality below the bar
Lab Rating is 6.2/10, under the 8.0/10 required for an official pick.
Cold stretch at the plate
Los Angeles Angels is -0.038 wOBA below its own season form.

Why the setup score is what it is

Conviction: 20/20
LyDia's win probability for Los Angeles Angels (74.3%) is well clear of a coin flip -- this is a real, stated lean, not a guess.
Pitching plan: 20/20
Walbert Ureña rates 22 points better than Ethan Pecko on LyDia's pitcher score. That is a real edge, and it earns most or all of the available credit here.
Bullpen: 14.73/20
Los Angeles Angels's bullpen carries a real edge over Houston Astros's tonight.
Offense: 7.28/40
Los Angeles Angels's recent form does not clearly outpace Houston Astros's.

Why the price is what it is

Team strength: 55.3%
Before any pitcher or bullpen adjustment, LyDia's team-strength model alone makes Los Angeles Angels 55.3% to win. Everything below moves the price from this starting point.
Pitcher score gap: 22 points
The pitcher-score gap favors Los Angeles Angels by 22 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: +0.069
The bullpen-fatigue gap between the two pens nudges the price toward Los Angeles Angels. This moves the price less than the starting pitchers do, since a starter covers more of the game than the bullpen.
Net effect: 55.3% -> 74.3%
Team strength alone had Los Angeles Angels at 55.3%. After the pitcher and bullpen terms, the price is 74.3% -- 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

MatchupLos Angeles Angels at Houston Astros
DateWednesday, August 19, 2026
First pitch8:10 PM ET
VenueDaikin Park
Starting pitchersWalbert Ureña vs Ethan Pecko
WeatherGame-time forecast: 89°F, 2% precipitation chance, 11 mph wind from S. This venue has a roof, but the roof status is not confirmed.

Starting pitcher matchup

Full Pitcher Matchup Tool →
Walbert UreñaAngels · RHP
vs
Ethan PeckoAstros · RHP
MetricAngelsAstros
Pitching planTraditional starterRole unknown
Expected innings5⅓4⅔
ThrowsRR
LyDia pitcher score (higher is better)7250
ERA (lower is better)2.67Not available
WHIP (lower is better)1.25Not available
K/9 (higher is better)8.5Not available
K-BB% (higher is better)9.8%Not available
K% (higher is better)22.2%Not available
BB% (lower is better)12.4%Not available
BB/9 (lower is better)4.8Not available
HR/9 (lower is better)0.5Not available
Ground-ball rate55.6%Not available
Fly-ball rate44.4%Not available

Pitcher edge: LyDia gives Walbert Ureña a 22-point edge over Ethan Pecko, driven mainly by expected innings (5.3 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 →

Walbert Ureña strikeouts
4.7 LyDia projected Ks
No strikeout line posted when this page was generated

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

Angels are 5-5 in their last 10, averaging 2.9 runs per game over the last 15 days, and hitting below their season form; Astros are 4-6 in their last 10, averaging 4.0 runs per game over the last 15 days, and hitting below their season form. On the season Astros carry the better run differential per game (-0.25 against -0.67).

MetricAngelsAstros
Last 105-54-6
Last 10 by venue (away team on the road, home team at home)4-6 on the road5-5 at home
OPS, last 15 days0.5920.646
wOBA, last 15 days (hot/cold read)0.2660.286
Runs per game, last 15 days2.94.0
K% last 15 days (lower is better)25.0%19.0%

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 daysAngelsAstros
OPS0.604 (-0.079 vs szn)0.749 (+0.020 vs szn)
Runs per game2.92 (-1.125 vs szn)4.88 (+0.301 vs szn)
wOBA (model offense input)0.272 (-0.032 vs szn)0.329 (+0.009 vs szn)
K% (lower is better)25.2%20.7% (-0.7% vs szn)

Over the last 30 days the Astros have been the better offense, 0.329 wOBA to 0.272. They are running hot against their own season line (+0.009 wOBA). Angels are striking out at 25.2% over the window — something the opposing starter can lean on.

Season profile

Full Stats page →
MetricAngelsAstros
Record50-7663-63
Run differential / game (team quality)-0.67-0.25
Runs scored / game (offense, season)4.054.58
Runs allowed / game (defense, season, lower better)4.714.83
Season OPS0.6830.729
K% season (lower is better)25.2%21.4%
OPS vs opposing hand (season)0.6820.738

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. Angels and Astros are highlighted.

Angels
Combined risk
4.3 Normal
Fatigue
5.0 Normal
Efficiency
6.4 Effective
Astros
Combined risk
6.6 Tired
Fatigue
6.6 Tired
Efficiency
5.1 Average

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.

MetricAngelsAstros
Fatigue5.0/10, Normal6.6/10, Tired
Efficiency6.4/10, Effective5.1/10, Average
Combined risk4.3/10, Normal6.6/10, Tired
Relief innings, last 7 days17.728.0
Back-to-back arms64
7-day ERA2.553.86
7-day WHIP1.021.39

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
7.1
Market total
8.5
Projected away runs
2.9
Projected home runs
4.3
Over price
-109
Under price
-102
Los Angeles Angels team total
2.9 projected
Line 3.5 · O -122 / U +100
No team-total lean
Houston Astros team total
4.3 projected
Line 4.5 · O -102 / U -115
No team-total lean

The model projects 1.4 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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