MLB matchup analysis

Cubs vs Royals Prediction, Odds and Model Pick

Sunday, August 9, 2026 at Kauffman Stadium · 2:10 PM ET

Pass

LyDia decision: Pass on Cubs vs Royals

Lab Rating
6.1/10
Model lean
Cubs 60.1%
Market probability
60.1%
Model edge
+0.0%
Best moneyline
-154
Sportsbooks checked
9
LyDia model
60.1%
Market
60.1%

The case for Chicago Cubs

Bats are hot: +0.010 wOBA
Chicago Cubs 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 Kansas City Royals

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

Why it is not official

Below the 61.0% official gate
Win probability is 60.1%. 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 6.1/10, under the 8.0/10 required for an official pick.
Own bullpen carries risk: 7.0/10
The Chicago Cubs bullpen comes in tired. A lead after six innings is less safe than usual.

Why the setup score is what it is

Pitching plan: 6/20
No meaningful starting-pitcher edge favors Chicago Cubs in this matchup.
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

MatchupChicago Cubs at Kansas City Royals
DateSunday, August 9, 2026
First pitch2:10 PM ET
VenueKauffman Stadium
Starting pitchersMatthew Boyd vs Randy Dobnak
WeatherGame-time forecast: 91°F, 5% precipitation chance, 15 mph wind from S.

Starting pitcher matchup

Full Pitcher Matchup Tool →
Matthew BoydCubs · LHP
vs
Randy DobnakRoyals · RHP
MetricCubsRoyals
Pitching planTraditional starterTraditional starter
Expected innings5⅔5⅓
ThrowsLR
LyDia pitcher score (higher is better)6767
ERA (lower is better)3.591.16
WHIP (lower is better)1.221.19
K/9 (higher is better)7.84.4
K-BB% (higher is better)14.2%1.6%
K% (higher is better)20.9%11.8%
BB% (lower is better)6.6%10.2%
BB/9 (lower is better)2.53.8
HR/9 (lower is better)1.00.6
Ground-ball rate50.3%64.0%
Fly-ball rate49.7%36.0%

Pitcher edge: LyDia gives Randy Dobnak a 0-point edge over Matthew Boyd, driven mainly by ERA (1.16 vs 3.59) and HR/9 (0.58 vs 0.99).

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 →

Matthew Boyd strikeouts
3.4 LyDia projected Ks
Official pick: UNDER 4.5K · -1.0K difference
Market 4.5K · O +107 / U -115 · 6 books
Randy Dobnak strikeouts
2.9 LyDia projected Ks
No K play · +0.4K difference is below LyDia's 0.7K threshold
Market 2.5K · O -130 / U +110 · 6 books

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

Cubs are 7-3 in their last 10, averaging 5.4 runs per game over the last 15 days, and swinging above their season form; Royals are 4-6 in their last 10, averaging 3.7 runs per game over the last 15 days, and hitting below their season form. On the season Cubs carry the better run differential per game (+0.84 against -0.86).

MetricCubsRoyals
Last 107-34-6
Last 10 by venue (away team on the road, home team at home)7-3 on the road7-3 at home
OPS, last 15 days0.7790.688
wOBA, last 15 days (hot/cold read)0.3430.301
Runs per game, last 15 days5.43.7
K% last 15 days (lower is better)22.7%17.0%

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 daysCubsRoyals
OPS0.764 (+0.012 vs szn)0.688 (-0.023 vs szn)
Runs per game5.32 (+0.201 vs szn)3.54 (-0.611 vs szn)
wOBA (model offense input)0.3370.301 (-0.012 vs szn)
K% (lower is better)24.0% (+2.2% vs szn)19.7% (-1.3% vs szn)

Over the last 30 days the Cubs have been the better offense, 0.337 wOBA to 0.301.

Season profile

Full Stats page →
MetricCubsRoyals
Record68-5049-69
Run differential / game (team quality)+0.84-0.86
Runs scored / game (offense, season)5.124.15
Runs allowed / game (defense, season, lower better)4.285.02
Season OPS0.7520.711
K% season (lower is better)21.8%21.0%
OPS vs opposing hand (season)0.7330.706

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. Cubs and Royals are highlighted.

Cubs
Combined risk
7.0 Tired
Fatigue
7.4 Tired
Efficiency
5.8 Effective
Royals
Combined risk
7.4 Tired
Fatigue
7.1 Tired
Efficiency
4.4 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.

MetricCubsRoyals
Fatigue7.4/10, Tired7.1/10, Tired
Efficiency5.8/10, Effective4.4/10, Below average
Combined risk7.0/10, Tired7.4/10, Tired
Relief innings, last 7 days24.723.3
Back-to-back arms64
7-day ERA3.654.63
7-day WHIP0.971.50

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
8.2
Market total
10.5
Projected away runs
5.5
Projected home runs
2.3
Over price
+100
Under price
-112
Chicago Cubs team total
5.5 projected
Line 5.5 · O -115 / U -108
No team-total lean
Kansas City Royals team total
2.3 projected
Line 4.5 · O +108 / U -125
Under research lean (-2.2)

The model projects 2.3 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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