MLB matchup analysis

Angels vs Astros Prediction, Odds and Model Pick

Tuesday, August 18, 2026 at Daikin Park · 8:10 PM ET

Watchlist

LyDia prediction: Houston Astros moneyline

Lab Rating
7.0/10
Model lean
Astros 66.3%
Market probability
60.2%
Model edge
+6.1%
Best moneyline
-156
Sportsbooks checked
9
LyDia model
66.3%
Market
60.2%

The case for Houston Astros

Pitching plan edge: 9 points
LyDia gives the Houston Astros pitching plan the edge over the Los Angeles Angels pitching plan (9 points on LyDia's pitcher score). Both starters are projected for a short outing, so this compares each side's blended starting-pitcher-and-bullpen quality, not the two starters directly.

The case for Los Angeles Angels

Late-inning bullpen advantage
Houston Astros relievers have a 4.15 ERA over the last 7 days; Los Angeles Angels relievers have a 2.21. If this is still close after six innings, that gap favors Los Angeles Angels.

Why it is not official

Setup quality below the bar
Lab Rating is 7.0/10, under the 8.0/10 required for an official pick.
Own bullpen carries risk: 6.5/10
The Houston Astros bullpen comes in tired. A lead after six innings is less safe than usual.
Cold stretch at the plate
Houston Astros is -0.027 wOBA below its own season form.

Why the setup score is what it is

Pitching plan: 9/20
Houston Astros rates 9 points better than Los Angeles Angels on LyDia's pitcher score — a real edge, but well short of the gap that earns full credit here.
Bullpen: 6.67/20
LyDia does not see a meaningful bullpen edge for Houston Astros once assigned innings are weighted.
The verdict Worth monitoring, nothing more. The setup has pieces but does not add up to a bet at today's price.
Read the full model output

Houston Astros remains on the watchlist. Lab Rating 7.0/10: conviction 20, pitching plan 9, bullpen 6.67, offense 34.13. LyDia projects 66.3% against a 60.2% no-vig market number, a 6.1% model edge at -156. Houston Astros owns the starting pitcher edge by 9 points. Bullpen read: Elevated volatility. Houston Astros's pen efficiency: Average (4.7/10). Pitching plan: George Klassen 3.7 IP + remaining bullpen 5.3 IP; Cristian Javier 3.9 IP + remaining bullpen 5.1 IP. Bullpen fatigue, efficiency, and combined risk grade only the innings assigned to the bullpen. Lineup check: Houston Astros is in a cold stretch (-0.066 OPS); Los Angeles Angels is in a cold stretch (-0.094 OPS).

Game information

MatchupLos Angeles Angels at Houston Astros
DateTuesday, August 18, 2026
First pitch8:10 PM ET
VenueDaikin Park
Starting pitchersGeorge Klassen vs Cristian Javier
WeatherGame-time forecast: 89°F, 2% precipitation chance, 9 mph wind from S. This venue has a roof, but the roof status is not confirmed.

Starting pitcher matchup

Full Pitcher Matchup Tool →
George KlassenAngels · RHP
vs
Cristian JavierAstros · RHP
MetricAngelsAstros
Pitching planLimited starterLimited starter
Expected innings3⅔4
ThrowsRR
LyDia pitcher score (higher is better)3735
ERA (lower is better)5.526.68
WHIP (lower is better)2.111.70
K/9 (higher is better)8.67.0
K-BB% (higher is better)-1.3%6.0%
K% (higher is better)18.4%16.8%
BB% (lower is better)19.7%10.7%
BB/9 (lower is better)9.24.5
HR/9 (lower is better)1.21.7
Ground-ball rate60.0%25.4%
Fly-ball rate40.0%74.6%

Pitching plan edge: LyDia gives the Houston Astros pitching plan the edge over the Los Angeles Angels pitching plan (9 points on LyDia's pitcher score). Both starters are projected for a short outing, so this compares each side's blended starting-pitcher-and-bullpen quality, not the two starters directly.

Blended read: For the Los Angeles Angels, the bullpen is projected to throw more of the game than George Klassen (about 3⅔ innings for the starter), so LyDia grades that side on a whole-game effective ERA of 4.28 rather than George Klassen's own 5.52. For the Houston Astros, the bullpen is projected to throw more of the game than Cristian Javier (about 4 innings for the starter), so LyDia grades that side on a whole-game effective ERA of 3.70 rather than Cristian Javier's own 6.68. Whole-game, that is 3.70 for the Houston Astros against 4.28 on the other side, so the blended read leans Houston Astros.

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 →

George Klassen strikeouts
Not available LyDia projected Ks
Market 4.5K · O +120 / U -148 · 6 books
Cristian Javier strikeouts
3.5 LyDia projected Ks
Qualifying projection: UNDER 4.5K · -1.0K difference
Market 4.5K · O -113 / U +100 · 6 books

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 (-0.24 against -0.69).

MetricAngelsAstros
Last 105-54-6
Last 10 by venue (away team on the road, home team at home)3-7 on the road6-4 at home
OPS, last 15 days0.5900.666
wOBA, last 15 days (hot/cold read)0.2660.294
Runs per game, last 15 days2.94.0
K% last 15 days (lower is better)25.2%18.7%

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
OPS0.609 (-0.075 vs szn)0.757 (+0.025 vs szn)
Runs per game2.92 (-1.133 vs szn)4.92 (+0.312 vs szn)
wOBA (model offense input)0.275 (-0.030 vs szn)0.331 (+0.010 vs szn)
K% (lower is better)25.3%20.4% (-0.9% vs szn)

Over the last 30 days the Astros have been the better offense, 0.331 wOBA to 0.275. They are running hot against their own season line (+0.010 wOBA). Angels are striking out at 25.3% over the window — something the opposing starter can lean on.

Season profile

Full Stats page →
MetricAngelsAstros
Record49-7663-62
Run differential / game (team quality)-0.69-0.24
Runs scored / game (offense, season)4.064.61
Runs allowed / game (defense, season, lower better)4.744.85
Season OPS0.6840.732
K% season (lower is better)25.2%21.3%
OPS vs opposing hand (season)0.6820.741

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
5.0 Normal
Fatigue
5.8 Normal
Efficiency
6.6 Effective
Astros
Combined risk
6.5 Tired
Fatigue
6.3 Tired
Efficiency
4.7 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
Fatigue5.8/10, Normal6.3/10, Tired
Efficiency6.6/10, Effective4.7/10, Average
Combined risk5.0/10, Normal6.5/10, Tired
Relief innings, last 7 days20.326.0
Back-to-back arms66
7-day ERA2.214.15
7-day WHIP1.031.54

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
8.1
Market total
9.0
Projected away runs
3.2
Projected home runs
4.5
Over price
-114
Under price
+103
Los Angeles Angels team total
3.2 projected
Line 3.5 · O -141 / U +115
No team-total lean
Houston Astros team total
4.5 projected
Line 4.5 · O -125 / U +109
No team-total lean

The model projects 0.9 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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