MLB matchup analysis

Brewers vs Cubs Prediction, Odds and Model Pick

Monday, August 31, 2026 at Wrigley Field · 7:40 PM ET

Pass

LyDia decision: Pass on Brewers vs Cubs

Lab Rating
4.9/10
Model lean
Brewers 55.3%
Market probability
46.6%
Model edge
+8.7%
Best moneyline
+109
Sportsbooks checked
5
LyDia model
55.3%
Market
46.6%

The case for Milwaukee Brewers

Bats are hot: +0.032 wOBA
Milwaukee Brewers 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.

The case for Chicago Cubs

Their bats are hot: +0.037 wOBA
Chicago Cubs is outhitting its own season form over the last 15 days.

Why it is not official

Below the 61.0% official gate
Win probability is 55.3%. LyDia does not make a game official below 61.0%, 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 4.9/10, under the 7.2/10 required for an official pick.
Opponent is swinging it
The other lineup is +0.037 wOBA above its season form over the last 15 days.

Why the setup score is what it is

Conviction: 0.14/10
LyDia leans toward Milwaukee Brewers, but not strongly enough to earn full conviction credit.
Pitching plan: 29/30
Kyle Harrison rates 73 on LyDia's pitcher score, judged on its own merits (50-80 is the credited range). That is a strong start on its own, and it earns most or all of the available credit here.
Bullpen: 5.78/10
Milwaukee Brewers's bullpen carries a real edge over Chicago Cubs's tonight.
Offense: 13.77/50
Milwaukee Brewers's recent form does not clearly outpace Chicago Cubs's.

Why the price is what it is

Team strength: 64.8%
Before any pitcher or bullpen adjustment, LyDia's team-strength model alone makes Milwaukee Brewers 64.8% to win. Everything below moves the price from this starting point.
Pitcher score gap: 3 points
The pitcher-score gap favors Milwaukee Brewers by 3 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: +0.021
The bullpen-fatigue gap between the two pens nudges the price toward Milwaukee Brewers. This moves the price less than the starting pitchers do, since a starter covers more of the game than the bullpen.
Net effect: 64.8% -> 55.3%
Team strength alone had Milwaukee Brewers at 64.8%. After the pitcher and bullpen terms, the price is 55.3% -- the same number shown as Model Lean above.
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.

Final result

Brewers 3, Cubs 17

How the analysis held up

Chicago Cubs won. LyDia's model favored the other side.

LyDia's two internal reads disagreed pregame by 26.6 points — the team-strength model favored Milwaukee Brewers, the run-projection model favored Chicago Cubs. The run-projection model had the winner here.

Clay Holmes (Chicago Cubs), the starter LyDia's pitcher score favored, actually outpitched Kyle Harrison: 6.0 IP, 0 ER (0.00 ERA) against 3.2 IP, 9 ER (22.09 ERA). The edge held up.

The Milwaukee Brewers bullpen was not flagged pregame, but it had a night worth noting: 8 earned runs allowed over 4.1 relief innings (16.62 ERA) — quietly worse than the pregame read implied.

The Chicago Cubs bullpen was not flagged pregame, but it had a night worth noting: 3 earned runs allowed over 3.0 relief innings (9.00 ERA) — quietly worse than the pregame read implied.

Chicago Cubs scored 17, 11.5 more than the 5.5 pregame projection.

Likely driver: Kyle Harrison, the pick's own starter, was rocked for a 22.09 ERA, and the Milwaukee Brewers bullpen allowed 8 earned runs over 4.1 relief innings (16.62 ERA), which was not flagged pregame but showed up anyway.

Game information

MatchupMilwaukee Brewers at Chicago Cubs
DateMonday, August 31, 2026
First pitch7:40 PM ET
VenueWrigley Field
Starting pitchersKyle Harrison vs Clay Holmes
WeatherGame-time forecast: 79°F, 19% precipitation chance, 6 mph wind from SW.

Starting pitcher matchup

Full Pitcher Matchup Tool →
Kyle HarrisonBrewers · LHP
vs
Clay HolmesCubs · RHP
MetricBrewersCubs
Pitching planTraditional starterTraditional starter
Expected innings55⅔
ThrowsLR
LyDia pitcher score (higher is better)7377
ERA (lower is better)3.362.13
WHIP (lower is better)1.201.07
K/9 (higher is better)10.96.9
K-BB% (higher is better)22.6%10.9%
K% (higher is better)29.1%19.3%
BB% (lower is better)6.5%8.4%
BB/9 (lower is better)2.43.0
HR/9 (lower is better)1.60.4
Ground-ball rate42.7%64.3%
Fly-ball rate57.3%35.7%

Pitcher edge: LyDia gives Clay Holmes a 4-point edge over Kyle Harrison, driven mainly by HR/9 (0.45 vs 1.60) and expected innings (5.7 vs 4.9).

How to read this: the scorecards above name the starters; every number lives in this table.

Strikeout Projections Full strikeout projections →

Kyle Harrison strikeouts
4.6 LyDia projected Ks
Official pick: UNDER 5.5K · -0.8K difference
Market 5.5K · O +120 / U -144 · 3 books
Clay Holmes strikeouts
4.7 LyDia projected Ks
No K play · +0.2K difference is below LyDia's 0.7K threshold
Market 4.5K · O +126 / U -156 · 3 books

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

Brewers are 7-3 in their last 10 and averaging 6.2 runs per game over the last 15 days; Cubs are 3-7 in their last 10 and averaging 6.5 runs per game over the last 15 days. Season run differential separates them by almost nothing (+1.18 against +1.02).

MetricBrewersCubs
Last 107-33-7
Last 10 by venue (away team on the road, home team at home)5-5 on the road5-5 at home
OPS, last 15 days0.8150.872
wOBA, last 15 days (hot/cold read)0.3580.375
Runs per game, last 15 days6.26.5
K% last 15 days (lower is better)20.4%18.5%

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 daysBrewersCubs
OPS0.724 (-0.011 vs szn)0.863 (+0.089 vs szn)
Runs per game4.62 (-0.315 vs szn)6.36 (+1.019 vs szn)
wOBA (model offense input)0.3220.373 (+0.032 vs szn)
K% (lower is better)24.0% (+2.5% vs szn)20.2% (-1.2% vs szn)

Over the last 30 days the Cubs have been the better offense, 0.373 wOBA to 0.322. They are running hot against their own season line (+0.032 wOBA).

Season profile

Full Stats page →
MetricBrewersCubs
Record85-5277-60
Run differential / game (team quality)+1.18+1.02
Runs scored / game (offense, season)4.975.38
Runs allowed / game (defense, season, lower better)3.794.36
Season OPS0.7350.767
K% season (lower is better)21.5%21.4%
OPS vs opposing hand (season)0.7530.807

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. Brewers and Cubs are highlighted.

Brewers
Combined risk
5.8 Normal
Fatigue
6.7 Tired
Efficiency
6.8 Effective
Cubs
Combined risk
6.5 Tired
Fatigue
5.7 Normal
Efficiency
3.4 Below 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.

MetricBrewersCubs
Fatigue6.7/10, Tired5.7/10, Normal
Efficiency6.8/10, Effective3.4/10, Below average
Combined risk5.8/10, Normal6.5/10, Tired
Relief innings, last 7 days27.017.7
Back-to-back arms44
7-day ERA1.676.62
7-day WHIP1.111.42

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
10.5
Market total
10.0
Projected away runs
4.0
Projected home runs
6.1
Over price
-113
Under price
-104
Milwaukee Brewers team total
4.0 projected
Line 4.5 · O -110 / U -110
No team-total lean
Chicago Cubs team total
6.1 projected
Line 4.5 · O -102 / U -115
Over research lean (+1.6)

The model and market are close. Team totals remain research-only until their graded sample is established.

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