MLB matchup analysis

Rockies vs White Sox Prediction, Odds and Model Pick

Saturday, September 26, 2026 at Rate Field · 7:10 PM ET

Pass

Leo decision: Pass on Rockies vs White Sox

Lab Rating
5.4/10
Model lean
White Sox 73.1%
Market probability
66.0%
Model edge
+7.1%
Best moneyline
-210
Sportsbooks checked
4
Leo model
73.1%
Market
66.0%

The case for Chicago White Sox

Starting pitcher edge: 19 points
Leo gives Davis Martin a 19-point edge over Jose Quintana, driven mainly by HR/9 (0.86 vs 1.88) and K-BB% (12.3% vs 2.4%).
Bats are hot: +0.015 wOBA
Chicago White Sox 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 Colorado Rockies

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

Why it is not official

Setup quality below the bar
Lab Rating is 5.4/10, under the 7.2/10 required for an official pick.
Own bullpen carries risk: 6.6/10
The Chicago White Sox bullpen comes in tired. A lead after six innings is less safe than usual.

Why the setup score is what it is

Conviction: 9.07/10
Leo's win probability for Chicago White Sox (73.1%) is well clear of a coin flip -- this is a real, stated lean, not a guess.
Pitching plan: 20/40
Davis Martin rates 63 on Leo'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.
Offense: 25.42/50
Chicago White Sox's recent offensive form clearly outpaces Colorado Rockies's over the tracked windows.

Why the price is what it is

Team strength: 56.7%
Before any pitcher or bullpen adjustment, Leo's team-strength model alone makes Chicago White Sox 56.7% to win. Everything below moves the price from this starting point.
Pitcher score gap: 21 points
The pitcher-score gap favors Chicago White Sox by 21 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: -0.018
The bullpen-fatigue gap between the two pens nudges the price toward Colorado Rockies. This moves the price less than the starting pitchers do, since a starter covers more of the game than the bullpen.
Net effect: 56.7% -> 73.1%
Team strength alone had Chicago White Sox at 56.7%. After the pitcher and bullpen terms, the price is 73.1% -- the same number shown as Model Lean above.
The verdict Leo 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

Rockies 9, White Sox 6

How the analysis held up

Colorado Rockies won. Leo's model favored the other side.

Davis Martin (Chicago White Sox) was Leo's favored starter by pitcher score, but Jose Quintana actually pitched better tonight: 3.0 IP, 2 ER (6.00 ERA) against 0.2 IP, 2 ER (27.00 ERA). The edge did not show up in this game. Both starters struggled; this was not a case of one clean outing beating one bad one.

The Chicago White Sox bullpen was not flagged pregame, but it had a night worth noting: 6 earned runs allowed over 8.1 relief innings (6.48 ERA) — quietly worse than the pregame read implied. Note: 1 of the runs charged to the Chicago White Sox pitching staff overall was unearned — not something the bullpen's stuff should be blamed for.

Colorado Rockies scored 9, 6 more than the 3 pregame projection.

Chicago White Sox scored 6, 1.6 more than the 4.4 pregame projection.

Likely driver: Davis Martin, the pick's own starter, was rocked for a 27.00 ERA, and Colorado Rockies's offense scored 6 more runs than projected.

Game information

MatchupColorado Rockies at Chicago White Sox
DateSaturday, September 26, 2026
First pitch7:10 PM ET
VenueRate Field
Starting pitchersJose Quintana vs Davis Martin
WeatherGame-time forecast: 58°F, 0% precipitation chance, 5 mph wind from NE.

Starting pitcher matchup

Full Pitcher Matchup Tool →
Jose QuintanaRockies · LHP
vs
Davis MartinWhite Sox · RHP
MetricRockiesWhite Sox
Pitching planLimited starterTraditional starter
Expected innings4⅓5
ThrowsLR
Leo pitcher score (higher is better)4463
ERA (lower is better)5.443.95
WHIP (lower is better)1.501.32
K/9 (higher is better)4.77.5
K-BB% (higher is better)2.4%12.3%
K% (higher is better)11.8%19.8%
BB% (lower is better)9.4%7.5%
BB/9 (lower is better)3.82.8
HR/9 (lower is better)1.90.9
Ground-ball rate41.2%48.5%
Fly-ball rate58.8%51.5%

Pitcher edge: Leo gives Davis Martin a 19-point edge over Jose Quintana, driven mainly by HR/9 (0.86 vs 1.88) and K-BB% (12.3% vs 2.4%).

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

Strikeout Projections Full strikeout projections →

Jose Quintana strikeouts
2.8 Leo projected Ks
No K play · -0.7K difference is below Leo's 0.7K threshold
Market 3.5K · O -105 / U -110 · 6 books
Davis Martin strikeouts
4.2 Leo projected Ks
No K play · -0.3K difference is below Leo's 0.7K threshold
Market 4.5K · O +126 / U -138 · 6 books

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

Rockies are 2-8 in their last 10 and averaging 3.9 runs per game over the last 15 days; White Sox are 6-4 in their last 10 and averaging 5.8 runs per game over the last 15 days. On the season White Sox carry the better run differential per game (+0.34 against -1.18).

MetricRockiesWhite Sox
Last 102-86-4
Last 10 by venue (away team on the road, home team at home)1-9 on the road5-5 at home
OPS, last 15 days0.7440.752
wOBA, last 15 days (hot/cold read)0.3270.336
Runs per game, last 15 days3.95.8
K% last 15 days (lower is better)20.6%25.3%

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 daysRockiesWhite Sox
OPS0.731 (-0.008 vs szn)0.697 (-0.029 vs szn)
Runs per game4.07 (-0.587 vs szn)4.68 (-0.116 vs szn)
wOBA (model offense input)0.3210.313 (-0.008 vs szn)
K% (lower is better)23.1%25.5% (+1.3% vs szn)

Over the last 30 days the Rockies have been the better offense, 0.321 wOBA to 0.313. White Sox are striking out at 25.5% over the window — something the opposing starter can lean on.

Season profile

Full Stats page →
MetricRockiesWhite Sox
Record57-10383-77
Run differential / game (team quality)-1.18+0.34
Runs scored / game (offense, season)4.664.80
Runs allowed / game (defense, season, lower better)5.844.46
Season OPS0.7380.725
K% season (lower is better)22.8%24.2%
OPS vs opposing hand (season)0.7520.745

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. Rockies and White Sox are highlighted.

Rockies
Combined risk
6.0 Normal
Fatigue
6.5 Tired
Efficiency
6.1 Effective
White Sox
Combined risk
6.6 Tired
Fatigue
6.7 Tired
Efficiency
5.2 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.

MetricRockiesWhite Sox
Fatigue6.5/10, Tired6.7/10, Tired
Efficiency6.1/10, Effective5.2/10, Average
Combined risk6.0/10, Normal6.6/10, Tired
Relief innings, last 7 days25.027.3
Back-to-back arms43
7-day ERA2.883.95
7-day WHIP1.081.28

Fatigue measures workload. Efficiency measures recent run prevention. Combined risk is what the moneyline and totals systems use.

Run total projection

Full Totals Projections →
Leo projection
7.7
Market total
8.5
Projected away runs
3.1
Projected home runs
4.4
Over price
-102
Under price
-110
Colorado Rockies team total
3.1 projected
Line 3.5 · O +120 / U -148
No team-total lean
Chicago White Sox team total
4.4 projected
Line 4.5 · O -118 / U +106
No team-total lean

The model projects 0.8 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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