MLB matchup analysis

White Sox vs Cardinals Prediction, Odds and Model Pick

Friday, September 11, 2026 at Busch Stadium · 8:15 PM ET

Pass

LyDia decision: Pass on White Sox vs Cardinals

Lab Rating
3.4/10
Model lean
White Sox 64.5%
Market probability
49.2%
Model edge
+15.2%
Best moneyline
-102
Sportsbooks checked
5
LyDia model
64.5%
Market
49.2%

The case for Chicago White Sox

Starting pitcher edge: 8 points
LyDia gives Anthony Kay a 8-point edge over Matthew Liberatore, driven mainly by ERA (4.47 vs 5.57) and HR/9 (1.28 vs 1.62).

The case for St. Louis Cardinals

Late-inning bullpen advantage
Chicago White Sox relievers have a 3.86 ERA over the last 7 days; St. Louis Cardinals relievers have a 7.54. If this is still close after six innings, that gap favors St. Louis Cardinals.
Their bats are hot: +0.011 wOBA
St. Louis Cardinals is outhitting its own season form over the last 15 days.

Why it is not official

Setup quality below the bar
Lab Rating is 3.4/10, under the 7.2/10 required for an official pick.
Own bullpen carries risk: 9.6/10
The Chicago White Sox bullpen comes in high risk. A lead after six innings is less safe than usual.
Cold stretch at the plate
Chicago White Sox is -0.036 wOBA below its own season form.

Why the setup score is what it is

Conviction: 4.73/10
LyDia leans toward Chicago White Sox, but not strongly enough to earn full conviction credit.
Pitching plan: 12/40
Anthony Kay rates 59 on LyDia's pitcher score, judged on its own merits (50-80 is the credited range). Average or below by that measure, so it earns little or none of the available credit here -- independent of who the opponent is throwing.
Offense: 17.37/50
Chicago White Sox's recent form does not clearly outpace St. Louis Cardinals's.

Why the price is what it is

Team strength: 45.7%
Before any pitcher or bullpen adjustment, LyDia's team-strength model alone makes Chicago White Sox 45.7% to win. Everything below moves the price from this starting point.
Pitcher score gap: 8 points
The pitcher-score gap favors Chicago White Sox by 8 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: -0.063
The bullpen-fatigue gap between the two pens nudges the price toward St. Louis Cardinals. This moves the price less than the starting pitchers do, since a starter covers more of the game than the bullpen.
Net effect: 45.7% -> 64.5%
Team strength alone had Chicago White Sox at 45.7%. After the pitcher and bullpen terms, the price is 64.5% -- 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.

Game information

MatchupChicago White Sox at St. Louis Cardinals
DateFriday, September 11, 2026
First pitch8:15 PM ET
VenueBusch Stadium
Starting pitchersAnthony Kay vs Matthew Liberatore
WeatherGame-time forecast: 78°F, 7% precipitation chance, 5 mph wind from S.

Starting pitcher matchup

Full Pitcher Matchup Tool →
Anthony KayWhite Sox · LHP
vs
Matthew LiberatoreCardinals · LHP
MetricWhite SoxCardinals
Pitching planTraditional starterTraditional starter
Expected innings55
ThrowsLL
LyDia pitcher score (higher is better)5951
ERA (lower is better)4.475.57
WHIP (lower is better)1.361.47
K/9 (higher is better)7.49.3
K-BB% (higher is better)10.4%15.6%
K% (higher is better)18.3%23.7%
BB% (lower is better)7.9%8.1%
BB/9 (lower is better)3.23.2
HR/9 (lower is better)1.31.6
Ground-ball rate51.0%39.6%
Fly-ball rate49.0%60.4%

Pitcher edge: LyDia gives Anthony Kay a 8-point edge over Matthew Liberatore, driven mainly by ERA (4.47 vs 5.57) and HR/9 (1.28 vs 1.62).

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

Strikeout Projections Full strikeout projections →

Anthony Kay strikeouts
4.1 LyDia projected Ks
No K play · +0.6K difference is below LyDia's 0.7K threshold
Market 3.5K · O -135 / U +128 · 7 books
6.8 LyDia projected Ks
Official pick: OVER 5.5K · +1.3K difference
Market 5.5K · O +100 / U -115 · 7 books

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

White Sox are 3-7 in their last 10 and averaging 3.4 runs per game over the last 15 days; Cardinals are 4-6 in their last 10 and averaging 5.8 runs per game over the last 15 days. Season run differential separates them by almost nothing (+0.27 against -0.08).

MetricWhite SoxCardinals
Last 103-74-6
Last 10 by venue (away team on the road, home team at home)4-6 on the road5-5 at home
OPS, last 15 days0.6240.733
wOBA, last 15 days (hot/cold read)0.2830.322
Runs per game, last 15 days3.45.8
K% last 15 days (lower is better)25.8%21.2%

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 daysWhite SoxCardinals
OPS0.7260.726 (+0.024 vs szn)
Runs per game4.43 (-0.263 vs szn)5.41 (+0.863 vs szn)
wOBA (model offense input)0.3230.320 (+0.009 vs szn)
K% (lower is better)24.3%21.8% (+1.2% vs szn)

Over the last 30 days the White Sox have been the better offense, 0.323 wOBA to 0.320. White Sox are striking out at 24.3% over the window — something the opposing starter can lean on.

Season profile

Full Stats page →
MetricWhite SoxCardinals
Record75-7172-75
Run differential / game (team quality)+0.27-0.08
Runs scored / game (offense, season)4.694.54
Runs allowed / game (defense, season, lower better)4.424.63
Season OPS0.7220.702
K% season (lower is better)24.1%20.6%
OPS vs opposing hand (season)0.7320.712

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. White Sox and Cardinals are highlighted.

White Sox
Combined risk
9.6 High risk
Fatigue
9.7 High risk
Efficiency
5.3 Average
Cardinals
Combined risk
7.5 Tired
Fatigue
6.3 Tired
Efficiency
2.6 Struggling

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.

MetricWhite SoxCardinals
Fatigue9.7/10, High risk6.3/10, Tired
Efficiency5.3/10, Average2.6/10, Struggling
Combined risk9.6/10, High risk7.5/10, Tired
Relief innings, last 7 days39.722.7
Back-to-back arms29
7-day ERA3.867.54
7-day WHIP1.261.59

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
8.5
Projected away runs
5.0
Projected home runs
5.5
Over price
-102
Under price
-113
Chicago White Sox team total
5.0 projected
Line Not available · O Not available / U Not available
Market line pending
St. Louis Cardinals team total
5.5 projected
Line Not available · O Not available / U Not available
Market line pending

The model projects 2.0 runs above 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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