Chicago White Sox at Houston Astros

2026-09-01, 8:10 PM ET, Daikin Park. Sean Burke (R) against Ronel Blanco (R). Every number derives from the public Statcast store and the engine's published boards. Charts are code-drawn. Probabilities, not picks. Statcast through 2026-08-31.

What decides tonight

Every number below is a probability this engine published before first pitch and grades that night, or a plain count. No scouting verdicts are ranked here — those live in the panels and carry their own sample sizes.

Ronel Blanco (RHP) limited 2026 sample

390 pitches, K% 20% overall (101 BF; split withheld, short side only 34 BF)

5 apps · median 20 BF · reaches the order 3.0× (max 3) · exits at 84 pitches (IQR 81–85, 4 starts) · fastball +0.2 mph late (1 deep starts). Fade is measured inside each start on nights that reached 85 pitches, so it is not flattered by the short outings.

League percentiles, starter pool

K%3220%
BB%1412%
CSW%2726%
Whiff%4122%
Chase%4930%
xwOBA vs11.356
Hard-hit%6037%
GB%4541%
1st-pitch strike%8766%
published K forecast: E[K] 4.5
recent starts, K (n=4) last start 08/07, 25 days ago
807/20
MIA
407/26
CWS
408/01
TEX
108/07
SD

Arsenal, shape and results

Pitch # vL%vR% MPHIVBHB RPMWhiffCSW Chase 2K use 2K zone xwOBA RV/100
4-seam14235%40%93.4+19-7228311%19%19%27%45%.450+2.4
changeup11437%13%84.9+6-13147735%31%43%36%43%.221-0.7
slider6911%33%86.5+6+3211713%23%31%24%68%.485+7.9
curveball6518%14%79.9-2+9220325%34%31%13%·.276+0.4

RV/100 is run value per 100 pitches from the pitcher's side, so negative is good (a curveball at −1.3 costs the pitcher runs even if it misses bats — a real tension worth reading, not a contradiction). Whiff, chase and xwOBA are computed on this pitcher's own pitches this season; low-usage pitches carry small samples.

Locations, catcher view

4-seam
changeup
slider

Movement

4-seam: +19 IVB, -7 HBchangeup: +6 IVB, -13 HBslider: +6 IVB, +3 HBcurveball: -2 IVB, +9 HBhorizontal break (in), catcher viewinduced vertical break (in)

How to attack

  • Hunt the 4-seam early: 47% of his first pitches, only 11% whiffs, 57% in-zone on 0-0.
  • Vs lefties he leans changeup (37% of pitches to that side).
  • Two strikes: expect the changeup (36% of 2-strike pitches vs 29% overall).

Sean Burke (RHP)

2447 pitches, K% 26% vs LHB (365 BF) / 26% vs RHB (253 BF)

27 apps · median 23 BF · reaches the order 3.0× (max 3) · exits at 92 pitches (IQR 90–96, 23 starts) · fastball +0.0 mph late (23 deep starts). Fade is measured inside each start on nights that reached 85 pitches, so it is not flattered by the short outings.

League percentiles, starter pool

K%7726%
BB%558%
CSW%7429%
Whiff%5023%
Chase%6932%
xwOBA vs69.300
Hard-hit%5338%
GB%1636%
1st-pitch strike%7264%
published K forecast: E[K] 4.3
recent starts, K (n=5)
408/05
BOS
808/11
CIN
208/16
DET
408/21
NYM
308/26
TEX

Arsenal, shape and results

Pitch # vL%vR% MPHIVBHB RPMWhiffCSW Chase 2K use 2K zone xwOBA RV/100
4-seam90739%35%94.9+19-4258522%26%36%50%44%.271-1.3
knuckle-curve49225%13%79.4-14+5245326%31%27%21%40%.253+0.5
slider44910%30%86.7+4+5252932%36%36%16%41%.324-0.1
sinker35412%18%94.7+15-1324039%21%29%9%48%.363+0.1
cutter19410%5%90.3+10+3263726%37%27%3%·.362-0.5

RV/100 is run value per 100 pitches from the pitcher's side, so negative is good (a curveball at −1.3 costs the pitcher runs even if it misses bats — a real tension worth reading, not a contradiction). Whiff, chase and xwOBA are computed on this pitcher's own pitches this season; low-usage pitches carry small samples.

Locations and movement (4 charts)
4-seam
knuckle-curve
slider

Movement

4-seam: +19 IVB, -4 HBknuckle-curve: -14 IVB, +5 HBslider: +4 IVB, +5 HBsinker: +15 IVB, -13 HBcutter: +10 IVB, +3 HBhorizontal break (in), catcher viewinduced vertical break (in)

Attack plan vs Houston Astros

  • Knuckle-curve/slider: top breaking whiffs are Trammell (50%), Peña (44%).
  • Careful with Paredes: 85% contact, 12% K rate vs RHP; pitch to contact at the edges.

White Sox bats vs Ronel Blanco

Season quality vs tonight's starter hand, percentile-colored vs league: red elite, paper average, blue poor. P columns are the engine's published board numbers for this game. Batting order as posted. 30d contact is the last-30-day contact rate minus the season rate; an arrow is drawn only when the move clears two standard errors of its own noise, and n is the recent swing count.

#BatterPAxwOBAK%Chase%Contact%HH%P(1+ hit)P(1+ HR)30d contact
1Sam Antonacci (L)372.35715%21%87%35%65%5%n180
2Munetaka Murakami (L)307.38032%22%61%56%61%15%n212
3Miguel Vargas (R)415.37318%21%81%41%64%14%n207
4Andrew Benintendi (L)363.32122%32%75%46%62%9%n144
5Colson Montgomery (L)378.29237%33%64%45%58%11%n239
6Randal Grichuk (R)69.28420%31%70%42%57%10%n86
7Tristan Peters (L)361.32318%33%79%34%60%11%n139
8Chase Meidroth (R)394.28723%27%82%33%64%8%n186
9Drew Romo (S)158.25524%37%69%27%54%7%n99

Houston Astros bats, where our staff attacks

Whiff by pitch group vs our starter's hand. Blue cells are the attack zones. P columns are the published board numbers. Batting order as posted. 30d contact is the last-30-day contact rate minus the season rate; an arrow is drawn only when the move clears two standard errors of its own noise, and n is the recent swing count.

#BatterPAFB whiffBRK whiffOFF whiffxwOBAChase%Contact%1st-pitch swingP(1+ hit)P(1+ HR)30d contact
1Jeremy Peña (R)29713%44%40%.32838%72%46% n29856%10%▼ -7% n219
2Yordan Alvarez (L)43914%24%16%.48527%83%30% n43965%12%n183
3Isaac Paredes (R)42710%23%21%.32025%85%15% n42765%7%n209
4Jose Altuve (R)36118%24%33%.27336%78%42% n36162%8%n175
5LaMonte Wade Jr. (L)10414%18%33%.29222%82%16% n10552%7%n76
6Christian Walker (R)42220%38%29%.29932%73%35% n42259%8%n192
7Yainer Diaz (R)19915%21%25%.33043%82%44% n19959%9%n134
8Taylor Trammell (L)19530%50%38%.31528%64%34% n19550%9%n123
9Cam Smith (R)35817%43%44%.32130%72%35% n35952%10%n170

Houston Astros hitters, one card each

One card per hitter: the published probabilities this engine grades tonight, his whiff shape by pitch group, and his season against this starter's hand with the sample stated. Times-through-order and leverage splits are deliberately absent — at a median 45 plate appearances the third-time-through number carries a standard error roughly three times the effect it would be claiming.

1

Jeremy Peña (R)

P(1+ hit) 56% · P(1+ HR) 10%

FB13%
BRK44%
OFF40%

vs RHP 0.328 xwOBA, K 21% (297 PA)

2

Yordan Alvarez (L)

P(1+ hit) 65% · P(1+ HR) 12%

FB14%
BRK24%
OFF16%

vs RHP 0.485 xwOBA, K 18% (439 PA)

3

Isaac Paredes (R)

P(1+ hit) 65% · P(1+ HR) 7%

FB10%
BRK23%
OFF21%

vs RHP 0.320 xwOBA, K 12% (427 PA)

4

Jose Altuve (R)

P(1+ hit) 62% · P(1+ HR) 8%

FB18%
BRK24%
OFF33%

vs RHP 0.273 xwOBA, K 20% (361 PA)

5

LaMonte Wade Jr. (L)

P(1+ hit) 52% · P(1+ HR) 7%

FB14%
BRK18%
OFF33%

vs RHP 0.292 xwOBA, K 24% (104 PA)

6

Christian Walker (R)

P(1+ hit) 59% · P(1+ HR) 8%

FB20%
BRK38%
OFF29%

vs RHP 0.299 xwOBA, K 25% (422 PA)

7

Yainer Diaz (R)

P(1+ hit) 59% · P(1+ HR) 9%

FB15%
BRK21%
OFF25%

vs RHP 0.330 xwOBA, K 13% (199 PA)

8

Taylor Trammell (L)

P(1+ hit) 50% · P(1+ HR) 9%

FB30%
BRK50%
OFF38%

vs RHP 0.315 xwOBA, K 32% (195 PA)

9

Cam Smith (R)

P(1+ hit) 52% · P(1+ HR) 10%

FB17%
BRK43%
OFF44%

vs RHP 0.321 xwOBA, K 25% (358 PA)

Matchups: CWS hitters vs Ronel Blanco

Where this starter's actual usage meets each hitter's measured holes and damage, on the same map. An edge is only reported where the pitcher genuinely goes — a hole against a pitch he does not throw is not a matchup — and only where the rate is measurably worse than league for a typical hitter in that same spot. Every line carries its sample size. Batter-versus-pitcher history is shown as trivia and is not used in any of it: the samples that actually occur are far too small to support a conclusion, and most public matchup content is built on them anyway.

1. Sam Antonacci

Edge: batterWhen the ball goes up and away — and he puts 7% of his pitches there — the batter does real damage: 0.426 expected value per ball in play, against a 0.272 league average in that spot. (19 balls in play.)

Tonight's published, gradeable numbers for this batter: 65% to get a hit and 5% to homer. Those are what the record grades — the notes above only explain why.

2 for 3 lifetime. At 3 plate appearances this is trivia, not evidence — it is shown because people ask for it, and it is not used anywhere in the analysis above.

2. Munetaka Murakami

Edge: pitcherHe throws the four-seam off the plate on 18% of his pitches to this side. The batter swings and misses 46% of the time there, against 31% for a typical hitter — +16 points. (30 swings.)

Edge: batterWhen the ball goes middle-middle — and he puts 7% of his pitches there — the batter does real damage: 0.568 expected value per ball in play, against a 0.393 league average in that spot. (30 balls in play.)

Tonight's published, gradeable numbers for this batter: 61% to get a hit and 15% to homer. Those are what the record grades — the notes above only explain why.

1 for 3 lifetime. At 3 plate appearances this is trivia, not evidence — it is shown because people ask for it, and it is not used anywhere in the analysis above.

3. Miguel Vargas

Edge: batterWhen the ball goes middle-middle — and he puts 5% of his pitches there — the batter does real damage: 0.502 expected value per ball in play, against a 0.393 league average in that spot. (29 balls in play.)

Tonight's published, gradeable numbers for this batter: 64% to get a hit and 14% to homer. Those are what the record grades — the notes above only explain why.

1 for 3 lifetime. At 3 plate appearances this is trivia, not evidence — it is shown because people ask for it, and it is not used anywhere in the analysis above.

4. Andrew Benintendi

Edge: batterWhen the ball goes up-middle — and he puts 5% of his pitches there — the batter does real damage: 0.400 expected value per ball in play, against a 0.330 league average in that spot. (22 balls in play.)

Tonight's published, gradeable numbers for this batter: 62% to get a hit and 9% to homer. Those are what the record grades — the notes above only explain why.

0 for 2 lifetime. At 2 plate appearances this is trivia, not evidence — it is shown because people ask for it, and it is not used anywhere in the analysis above.

5. Colson Montgomery

Edge: pitcherHe throws the four-seam off the plate on 18% of his pitches to this side. The batter swings and misses 47% of the time there, against 31% for a typical hitter — +16 points. (83 swings.)

Edge: batterWhen the ball goes down-middle — and he puts 6% of his pitches there — the batter does real damage: 0.510 expected value per ball in play, against a 0.356 league average in that spot. (18 balls in play.)

Tonight's published, gradeable numbers for this batter: 58% to get a hit and 11% to homer. Those are what the record grades — the notes above only explain why.

6. Randal Grichuk

Not enough of a track record in the spots this pitcher uses to say anything useful. No verdict rather than a guess.

Tonight's published, gradeable numbers for this batter: 57% to get a hit and 10% to homer. Those are what the record grades — the notes above only explain why.

7. Tristan Peters

Edge: batterWhen the ball goes middle and away — and he puts 6% of his pitches there — the batter does real damage: 0.420 expected value per ball in play, against a 0.309 league average in that spot. (29 balls in play.)

Tonight's published, gradeable numbers for this batter: 60% to get a hit and 11% to homer. Those are what the record grades — the notes above only explain why.

0 for 2 lifetime. At 2 plate appearances this is trivia, not evidence — it is shown because people ask for it, and it is not used anywhere in the analysis above.

8. Chase Meidroth

Not enough of a track record in the spots this pitcher uses to say anything useful. No verdict rather than a guess.

Tonight's published, gradeable numbers for this batter: 64% to get a hit and 8% to homer. Those are what the record grades — the notes above only explain why.

0 for 2 lifetime. At 2 plate appearances this is trivia, not evidence — it is shown because people ask for it, and it is not used anywhere in the analysis above.

9. Drew Romo

Not enough of a track record in the spots this pitcher uses to say anything useful. No verdict rather than a guess.

Tonight's published, gradeable numbers for this batter: 54% to get a hit and 7% to homer. Those are what the record grades — the notes above only explain why.

0 for 2 lifetime. At 2 plate appearances this is trivia, not evidence — it is shown because people ask for it, and it is not used anywhere in the analysis above.

Houston Astros: the running game and the defense

Sprint speed says who can run; attempt rate says who will. Rate is steals of second per time on first, shrunk toward the league’s 5.3% at 22 opportunities, with the raw count beside it. Verdict needs 15+ times on first. Sprint speed and Outs Above Average are Baseball Savant leaderboard metrics — measured from tracking data we do not have and did not compute.

Behind the plate: Drew Romo — runners went 35-for-48 against him (27% caught). That is mostly the pitcher: measured split-half reliability for a catcher’s own caught-stealing rate is +0.59, and the spread between catchers is smaller than the sampling noise. Read it as what happened, not as a rating.

#Batter Sprint Steal rate Threat OAA
1Jeremy Peña (R)29.2 ft/s4.8% (16/336)holds-3 SS
2Yordan Alvarez (L)24.9 ft/s1.1% (3/340)holds·
3Isaac Paredes (R)25.0 ft/s0.5% (1/386)holds+0 3B
4Jose Altuve (R)27.5 ft/s3.4% (13/392)holds-5 2B
5LaMonte Wade Jr. (L)25.6 ft/s1.5% (1/122)holds·
6Christian Walker (R)25.9 ft/s0.8% (2/364)holds+2 1B
7Yainer Diaz (R)25.8 ft/s1.1% (2/269)holds·
8Taylor Trammell (L)27.0 ft/s6.3% (7/107)holds·
9Cam Smith (R)29.2 ft/s6.3% (18/282)holds+5 RF

Chicago White Sox: the running game and the defense

Sprint speed says who can run; attempt rate says who will. Rate is steals of second per time on first, shrunk toward the league’s 5.3% at 22 opportunities, with the raw count beside it. Verdict needs 15+ times on first. Sprint speed and Outs Above Average are Baseball Savant leaderboard metrics — measured from tracking data we do not have and did not compute.

Behind the plate: Yainer Diaz — runners went 108-for-133 against him (19% caught). That is mostly the pitcher: measured split-half reliability for a catcher’s own caught-stealing rate is +0.59, and the spread between catchers is smaller than the sampling noise. Read it as what happened, not as a rating.

#Batter Sprint Steal rate Threat OAA
1Sam Antonacci (L)28.2 ft/s8.4% (17/194)occasional-5 LF
2Munetaka Murakami (L)27.1 ft/s2.1% (3/178)holds+0 1B
3Miguel Vargas (R)28.3 ft/s4.0% (15/383)holds-2 3B
4Andrew Benintendi (L)26.6 ft/s0.8% (1/265)holds·
5Colson Montgomery (L)26.6 ft/s0.9% (1/223)holds+6 SS
6Randal Grichuk (R)27.3 ft/s1.6% (1/110)holds·
7Tristan Peters (L)28.7 ft/s3.7% (5/143)holds+9 CF
8Chase Meidroth (R)27.2 ft/s3.2% (13/427)holds+4 2B
9Drew Romo (S)26.1 ft/s3.0% (1/50)holds·

Bullpens

Sorted by 30-day workload. Day cells show pitches on the three most recent league game dates; dark means heavy recent use. Season rates percentile-colored vs all pitchers with 150+ pitches.

White Sox bullpen 8 arms
Reliever08/2908/3008/31 games since 30-day K%Whiff%xwOBA Top pitches
Trevor Richards (R)··38today heavy322p/11g22%21%.3084-seam 91 (67%) · changeup 80 (20%)
Erick Fedde (R)···7 heavy260p/6g16%18%.334sweeper 82 (37%) · sinker 94 (33%)
Grant Taylor (R)···3246p/12g33%26%.2524-seam 98 (39%) · curveball 83 (25%)
Hagen Smith (L)···3209p/8g35%35%.2804-seam 94 (50%) · slider 83 (30%)
Sean Newcomb (L)40··2 heavy177p/7g23%21%.3054-seam 95 (38%) · slurve 83 (29%)
Huascar Brazobán (R)···6166p/10g21%24%.295sinker 96 (54%) · changeup 91 (34%)
Jordan Hicks (R)···5150p/8g27%24%.283sinker 100 (39%) · 4-seam 99 (28%)
Bryan Hudson (L)9··2126p/10g22%22%.2844-seam 92 (71%) · sweeper 79 (29%)
Houston Astros bullpen 8 arms
Reliever08/2908/3008/31 games since 30-day K%Whiff%xwOBA Top pitches
Bryan Abreu (R)·1916today B2B254p/14g30%32%.3194-seam 96 (48%) · slider 87 (39%)
Enyel De Los Santos (R)20·27today243p/12g22%25%.2904-seam 96 (41%) · slider 87 (30%)
AJ Blubaugh (R)·31·1230p/11g25%26%.3024-seam 96 (50%) · sweeper 85 (27%)
Steven Okert (L)·618today B2B224p/15g26%29%.276slider 80 (64%) · 4-seam 90 (29%)
Bennett Sousa (L)··23today206p/13g22%30%.317slider 86 (71%) · 4-seam 94 (19%)
Josh Hader (L)·13·1187p/13g36%33%.217sinker 95 (64%) · slider 84 (36%)
Bryan King (L)···10 heavy129p/6g18%16%.3234-seam 92 (47%) · sinker 92 (29%)
Kai-Wei Teng (R)19··252p/3g22%25%.337sweeper 84 (54%) · sinker 94 (19%)