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Observed · MLB ·

· every game final

The day’s pitching, April 20, 2026

Ranked by game score

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Observed · MLB box scores, read 3:33 PM ET.

What is on this board

Every pitcher who has thrown in the April 20, 2026 games: 85 pitchers from 10 games. Game Score and win probability added are Derived. Game Score v2 is 40 + 2×outs + K − 2×H − 2×BB − 3×R − 6×HR. Win probability added sums MLB's model over each pitcher's own batters, in percentage points for his team.

Win probability is read on its own slower pass, last at 3:32 PM ET.

MLB published no clip for this outing’s at-bats. The arc and at-bat are from MLB’s tracking and win-probability feeds.

Gameday on MLB

Greg Weissert

Final · BOS 8, DET 6

Held the Tigers scoreless over 1 inning while the Red Sox trailed. Hao-Yu Lee’s strikeout in the 6th swung the game 7.4 points his way.

IP
1.0
H
0
R
0
BB
0
K
3
P
10
GSc
49
WPA
+18.4

Observed · MLB box score · GSc and WPA are derived

100%500+7.4 · Lee, top 6th6th

Derived · Sox’ win chance after each batter, MLB’s model.

Observed · 10 tracked pitches in completed at-bats. Taller is faster.

About this at-bat Observed and derived

+7.4 · Hao-Yu Lee strikes out swinging. Top 6th, one out.

Last pitch · Sweeper · 79.7 mph · 3 pitches in the at-bat

  1. Sinker · 95.1 mph · Swinging Strike
  2. Four-Seam Fastball · 93.2 mph · Foul
  3. Sweeper · 79.7 mph · Swinging Strike

After 1 sinker at 95.1 mph, the sweeper arrived 15 mph slower and 43 in away from them horizontally.

Selection & sources

This is the whole appearance for one pitcher on the day’s board, built when you selected him. The game is final. Read 3:34 PM ET. Win probability, plays and pitch tracking: MLB win-probability feed; lines and decisions: the game’s MLB game data. The notes are written from those measurements, not by a person. They describe the pitches, not why a batter swung or took.

2025 statistics · Aggregate, regular season

Fastball speed and movement across pitchers.

Four-seamers with the most pitches in this sample

PitcherPitchesSpeedIVB
Freddy PeraltaMIL · Four-seam fastball1,65194.8 mph16.8 in
Kevin GausmanTOR · Four-seam fastball1,62794.5 mph16.8 in
Robbie RaySF · Four-seam fastball1,59393.6 mph18.2 in

Pitcher-season means · Minimum 100 four-seam fastballs. Baseball Savant