MLB matchup analysis

Tigers vs White Sox Prediction, Odds and Model Pick

Sunday, September 20, 2026 at Rate Field · 2:10 PM ET

Official Pick

Leo prediction: Detroit Tigers moneyline

Lab Rating
7.6/10
Model lean
Tigers 69.0%
Market probability
47.9%
Model edge
+21.1%
Best moneyline
+103
Sportsbooks checked
8
Leo model
69.0%
Market
47.9%

The case for Detroit Tigers

Starting pitcher edge: 13 points
Leo gives Troy Melton a 13-point edge over Davis Martin, driven mainly by ERA (2.52 vs 3.96) and WHIP (1.10 vs 1.30).
Late-inning bullpen advantage
Chicago White Sox relievers have a 3.96 ERA over the last 7 days; Detroit Tigers relievers have a 2.03. If this is still close after six innings, that gap favors Detroit Tigers.
Bats are hot: +0.032 wOBA
Detroit Tigers 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 White Sox

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

Why the setup score is what it is

Conviction: 7.02/10
Leo's win probability for Detroit Tigers (69.0%) is well clear of a coin flip -- this is a real, stated lean, not a guess.
Pitching plan: 36/40
Troy Melton rates 77 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: 32.81/50
Detroit Tigers's recent offensive form clearly outpaces Chicago White Sox's over the tracked windows.

Why the price is what it is

Team strength: 58.4%
Before any pitcher or bullpen adjustment, Leo's team-strength model alone makes Detroit Tigers 58.4% to win. Everything below moves the price from this starting point.
Pitcher score gap: 13 points
The pitcher-score gap favors Detroit Tigers by 13 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: +0.078
The bullpen-fatigue gap between the two pens nudges the price toward Detroit Tigers. This moves the price less than the starting pitchers do, since a starter covers more of the game than the bullpen.
Net effect: 58.4% -> 69.0%
Team strength alone had Detroit Tigers at 58.4%. After the pitcher and bullpen terms, the price is 69.0% -- the same number shown as Model Lean above.
The verdict Leo backs Detroit Tigers at +103. 69.0% to win against a market implying 47.9% - the model sees value and the setup clears every gate.
Read the full model output

Detroit Tigers is an official moneyline pick because it clears both gates: 69.0% model win probability and 7.6/10 Lab Rating. Leo projects 69.0% against a 47.9% no-vig market number, a 21.2% model edge at +103. Detroit Tigers owns the starting pitcher edge by 13 points. Bullpen read: Supports Leo side. Detroit Tigers's pen efficiency: Effective (6.8/10). Bullpen fatigue moved this probability down 18.2 points from 87.2% (starting pitcher and team strength only) to 69.0%. Lineup check: Detroit Tigers is swinging a hot bat (+0.072 OPS); Chicago White Sox is a touch below its season form (-0.041 OPS). Recent form supports this side and is included in the unified run projection.

Game information

MatchupDetroit Tigers at Chicago White Sox
DateSunday, September 20, 2026
First pitch2:10 PM ET
VenueRate Field
Starting pitchersTroy Melton vs Davis Martin
WeatherGame-time forecast: 65°F, 76% precipitation chance, 12 mph wind from NE.

Starting pitcher matchup

Full Pitcher Matchup Tool →
Troy MeltonTigers · RHP
vs
Davis MartinWhite Sox · RHP
MetricTigersWhite Sox
Pitching planTraditional starterTraditional starter
Expected innings5⅔5⅓
ThrowsRR
Leo pitcher score (higher is better)7764
ERA (lower is better)2.523.96
WHIP (lower is better)1.101.30
K/9 (higher is better)7.37.3
K-BB% (higher is better)12.4%12.2%
K% (higher is better)20.0%19.4%
BB% (lower is better)7.5%7.3%
BB/9 (lower is better)2.82.7
HR/9 (lower is better)1.10.9
Ground-ball rate45.1%48.8%
Fly-ball rate54.9%51.2%

Pitcher edge: Leo gives Troy Melton a 13-point edge over Davis Martin, driven mainly by ERA (2.52 vs 3.96) and WHIP (1.10 vs 1.30).

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

Strikeout Projections Full strikeout projections →

Troy Melton strikeouts
5.9 Leo projected Ks
Official pick: OVER 4.5K · +1.4K difference
Market 4.5K · O -125 / U -101 · 5 books
Davis Martin strikeouts
3.8 Leo projected Ks
No K play · +0.3K difference is below Leo's 0.7K threshold
Market 3.5K · O -107 / U -110 · 5 books

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

Tigers are 7-3 in their last 10 and averaging 5.5 runs per game over the last 15 days; White Sox are 4-6 in their last 10 and averaging 4.2 runs per game over the last 15 days. Season run differential separates them by almost nothing (+0.48 against +0.23).

MetricTigersWhite Sox
Last 107-34-6
Last 10 by venue (away team on the road, home team at home)4-6 on the road5-5 at home
OPS, last 15 days0.7900.679
wOBA, last 15 days (hot/cold read)0.3490.305
Runs per game, last 15 days5.54.2
K% last 15 days (lower is better)24.1%29.4%

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 daysTigersWhite Sox
OPS0.683 (-0.035 vs szn)0.692 (-0.028 vs szn)
Runs per game4.25 (-0.240 vs szn)4.29 (-0.392 vs szn)
wOBA (model offense input)0.304 (-0.013 vs szn)0.311 (-0.008 vs szn)
K% (lower is better)24.0% (+1.2% vs szn)26.2% (+1.9% vs szn)

Over the last 30 days the White Sox have been the better offense, 0.311 wOBA to 0.304. White Sox are striking out at 26.2% over the window — something the opposing starter can lean on.

Season profile

Full Stats page →
MetricTigersWhite Sox
Record73-8279-76
Run differential / game (team quality)+0.48+0.23
Runs scored / game (offense, season)4.494.68
Runs allowed / game (defense, season, lower better)4.014.45
Season OPS0.7180.720
K% season (lower is better)22.8%24.3%
OPS vs opposing hand (season)0.7240.712

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. Tigers and White Sox are highlighted.

Tigers
Combined risk
5.8 Normal
Fatigue
6.7 Tired
Efficiency
6.8 Effective
White Sox
Combined risk
8.4 High risk
Fatigue
8.3 High risk
Efficiency
4.9 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.

MetricTigersWhite Sox
Fatigue6.7/10, Tired8.3/10, High risk
Efficiency6.8/10, Effective4.9/10, Average
Combined risk5.8/10, Normal8.4/10, High risk
Relief innings, last 7 days31.036.3
Back-to-back arms54
7-day ERA2.033.96
7-day WHIP0.941.43

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
4.5
Market total
8.0
Projected away runs
2.7
Projected home runs
1.8
Over price
-110
Under price
-101
Detroit Tigers team total
2.7 projected
Line 3.5 · O -127 / U +110
Under research lean (-0.8)
Chicago White Sox team total
1.8 projected
Line 3.5 · O -135 / U +112
Under research lean (-1.7)

The model projects 3.5 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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