# Filter the data for the pitcher Yoon Chae
Brian_Foley_data <- data %>%
filter(Pitcher == "Chae, Yoon")
# Create a detailed table for each pitch
detailed_pitch_table <- Brian_Foley_data %>%
select(AutoPitchType, RelSpeed, SpinRate, SpinAxis, HorzBreak, InducedVertBreak, PitchCall, RelHeight, RelSide, Extension) %>%
rename(
ReleaseSpeed = RelSpeed,
Tilt = SpinAxis,
HorizontalBreak = HorzBreak,
InducedVerticalBreak = InducedVertBreak,
ReleaseHeight = RelHeight,
ReleaseSide = RelSide
) %>%
mutate(
ReleaseSpeed = round(ReleaseSpeed, 2),
SpinRate = round(SpinRate, 2),
Tilt = round(Tilt, 2),
HorizontalBreak = round(HorizontalBreak, 2),
InducedVerticalBreak = round(InducedVerticalBreak, 2),
ReleaseHeight = round(ReleaseHeight, 2),
ReleaseSide = round(ReleaseSide, 2),
Extension = round(Extension, 2),
ClockTilt = round((Tilt / 30) %% 12, 1) # Interpret Tilt as clock face
)
# Display the detailed table
knitr::kable(detailed_pitch_table, caption = "Detailed Pitch Table for Yoon Chae")
Detailed Pitch Table for Yoon Chae
| Changeup |
75.82 |
1866.30 |
226.63 |
15.38 |
16.23 |
StrikeSwinging |
5.60 |
0.88 |
5.55 |
7.6 |
| Four-Seam |
84.35 |
2107.44 |
207.42 |
12.68 |
25.95 |
BallCalled |
5.62 |
0.90 |
5.97 |
6.9 |
| Changeup |
75.71 |
1805.66 |
227.84 |
14.81 |
15.09 |
InPlay |
5.55 |
1.29 |
5.44 |
7.6 |
| Curveball |
73.10 |
1709.33 |
134.42 |
-7.15 |
8.89 |
StrikeCalled |
5.70 |
0.73 |
5.18 |
4.5 |
| Curveball |
68.69 |
1767.08 |
68.98 |
-11.23 |
-1.81 |
InPlay |
3.81 |
2.06 |
4.92 |
2.3 |
| Four-Seam |
82.88 |
2160.96 |
205.50 |
10.05 |
22.57 |
BallCalled |
5.76 |
0.51 |
5.84 |
6.8 |
| Curveball |
73.36 |
1903.76 |
90.86 |
-9.38 |
1.99 |
InPlay |
5.59 |
0.72 |
5.21 |
3.0 |
| Four-Seam |
83.79 |
2161.84 |
205.89 |
10.14 |
22.29 |
BallCalled |
5.71 |
0.69 |
5.82 |
6.9 |
| Curveball |
73.53 |
1833.99 |
69.79 |
-9.58 |
-1.36 |
StrikeCalled |
5.55 |
0.77 |
5.43 |
2.3 |
| Four-Seam |
84.18 |
2245.12 |
203.68 |
8.99 |
21.98 |
BallCalled |
5.69 |
0.90 |
5.91 |
6.8 |
| Curveball |
73.87 |
1771.06 |
91.09 |
-10.79 |
2.23 |
BallinDirt |
5.67 |
0.71 |
5.60 |
3.0 |
| Four-Seam |
84.10 |
2192.78 |
197.44 |
7.26 |
24.54 |
BallCalled |
5.68 |
0.59 |
6.12 |
6.6 |
| Four-Seam |
83.60 |
2172.71 |
201.61 |
9.18 |
24.67 |
BallCalled |
5.60 |
0.78 |
6.03 |
6.7 |
| Four-Seam |
83.95 |
2272.01 |
212.00 |
13.19 |
22.61 |
FoulBallNotFieldable |
5.68 |
0.73 |
6.03 |
7.1 |
| Curveball |
73.63 |
1677.14 |
84.35 |
-4.89 |
1.72 |
StrikeSwinging |
5.62 |
0.81 |
5.46 |
2.8 |
| Four-Seam |
83.86 |
2172.16 |
194.20 |
5.70 |
24.08 |
HitByPitch |
5.72 |
0.86 |
6.10 |
6.5 |
| Curveball |
72.08 |
1841.71 |
238.09 |
14.02 |
10.76 |
BallinDirt |
5.50 |
1.03 |
5.38 |
7.9 |
| Changeup |
82.93 |
2026.58 |
210.04 |
9.89 |
18.60 |
FoulBallNotFieldable |
5.62 |
0.88 |
6.04 |
7.0 |
| Changeup |
75.66 |
1665.37 |
240.96 |
11.63 |
8.10 |
StrikeSwinging |
5.55 |
1.02 |
5.71 |
8.0 |
| Changeup |
76.50 |
1654.27 |
235.91 |
11.95 |
9.63 |
InPlay |
5.56 |
1.00 |
5.63 |
7.9 |
| Four-Seam |
83.81 |
2182.87 |
210.64 |
12.44 |
22.39 |
InPlay |
5.71 |
0.70 |
5.87 |
7.0 |
| Curveball |
74.65 |
1929.77 |
35.09 |
-4.46 |
-4.15 |
StrikeCalled |
5.50 |
0.82 |
5.32 |
1.2 |
| Changeup |
75.94 |
1809.18 |
227.40 |
11.61 |
12.27 |
FoulBallNotFieldable |
5.55 |
1.01 |
5.71 |
7.6 |
| Changeup |
82.74 |
2001.33 |
236.06 |
15.91 |
12.30 |
BallCalled |
4.55 |
1.94 |
5.66 |
7.9 |
| Changeup |
75.73 |
1641.25 |
228.42 |
11.77 |
12.14 |
InPlay |
5.49 |
0.98 |
5.63 |
7.6 |
| Changeup |
75.89 |
1753.79 |
254.68 |
12.81 |
5.29 |
BallCalled |
5.48 |
0.95 |
5.49 |
8.5 |
| Four-Seam |
84.37 |
2090.26 |
208.81 |
11.13 |
21.72 |
StrikeCalled |
5.68 |
0.86 |
5.92 |
7.0 |
| Curveball |
75.14 |
1864.04 |
110.20 |
-11.21 |
6.08 |
StrikeCalled |
5.53 |
0.83 |
5.25 |
3.7 |
| Changeup |
76.84 |
1788.62 |
229.89 |
13.76 |
13.31 |
InPlay |
5.40 |
1.10 |
5.71 |
7.7 |
| Curveball |
73.30 |
1816.09 |
131.73 |
-5.76 |
7.11 |
StrikeCalled |
5.53 |
1.07 |
5.29 |
4.4 |
| Four-Seam |
83.29 |
2176.05 |
212.80 |
12.76 |
21.33 |
BallCalled |
5.58 |
0.94 |
5.93 |
7.1 |
| Curveball |
74.57 |
1821.52 |
122.59 |
-6.93 |
6.12 |
FoulBallNotFieldable |
5.48 |
0.95 |
5.40 |
4.1 |
| Changeup |
75.53 |
1681.43 |
242.39 |
11.20 |
7.56 |
BallCalled |
5.48 |
1.31 |
5.72 |
8.1 |
| Four-Seam |
84.82 |
2243.61 |
207.45 |
10.28 |
21.12 |
BallCalled |
5.59 |
0.80 |
6.14 |
6.9 |
| Curveball |
73.94 |
1890.49 |
106.73 |
-7.25 |
4.09 |
InPlay |
5.49 |
0.91 |
5.30 |
3.6 |
| Four-Seam |
84.94 |
2146.71 |
202.70 |
8.81 |
22.49 |
StrikeCalled |
5.62 |
0.65 |
5.94 |
6.8 |
| Curveball |
76.42 |
1979.69 |
151.82 |
-3.31 |
7.94 |
BallCalled |
5.42 |
0.88 |
5.24 |
5.1 |
| Curveball |
75.89 |
1853.08 |
146.71 |
-3.53 |
7.22 |
StrikeCalled |
5.49 |
0.95 |
5.26 |
4.9 |
| Curveball |
77.14 |
1998.94 |
57.73 |
-4.44 |
-0.78 |
InPlay |
5.48 |
0.85 |
5.34 |
1.9 |
# Calculate the total number of pitches
total_pitches <- nrow(detailed_pitch_table)
# Create a summary table
pitch_summary <- detailed_pitch_table %>%
group_by(AutoPitchType) %>%
summarise(
TotalPitches = n(),
Usage = sprintf("%.2f%%", n() / total_pitches * 100),
Balls = sum(PitchCall %in% c("BallCalled", "BallinDirt")),
Strikes = sum(!PitchCall %in% c("BallCalled", "BallinDirt")), # Count everything not a ball as a strike
BallPercentage = sprintf('%.2f%%', Balls / TotalPitches * 100),
StrikePercentage = sprintf('%.2f%%', Strikes / TotalPitches * 100),
AvgVelocity = round(mean(ReleaseSpeed, na.rm = TRUE), 2),
AvgSpinRate = round(mean(SpinRate, na.rm = TRUE), 2),
AvgInducedVertBreak = round(mean(InducedVerticalBreak, na.rm = TRUE), 2),
AvgHorzBreak = round(mean(HorizontalBreak, na.rm = TRUE), 2),
AvgTilt = round(mean(Tilt, na.rm = TRUE), 2),
AvgClockTilt = round(mean(ClockTilt, na.rm = TRUE), 1), # Clock face interpretation
AvgReleaseHeight = round(mean(ReleaseHeight, na.rm = TRUE), 2),
AvgReleaseSide = round(mean(ReleaseSide, na.rm = TRUE), 2),
AvgExtension = round(mean(Extension, na.rm = TRUE), 2)
) %>%
select(AutoPitchType, Usage, everything())
# Display the total number of pitches
cat("Total number of pitches thrown: ", total_pitches, "\n")
## Total number of pitches thrown: 39
# Display the summary table
knitr::kable(pitch_summary, caption = "Summary Pitch Table for Yoon Chae")
Summary Pitch Table for Yoon Chae
| Changeup |
28.21% |
11 |
3 |
8 |
27.27% |
72.73% |
77.21 |
1790.34 |
11.87 |
12.79 |
232.75 |
7.8 |
5.44 |
1.12 |
5.66 |
| Curveball |
38.46% |
15 |
3 |
12 |
20.00% |
80.00% |
73.95 |
1843.85 |
3.74 |
-5.73 |
109.35 |
3.6 |
5.42 |
0.94 |
5.31 |
| Four-Seam |
33.33% |
13 |
8 |
5 |
61.54% |
38.46% |
84.00 |
2178.81 |
22.90 |
10.20 |
205.40 |
6.9 |
5.66 |
0.76 |
5.97 |
# Calculate maximum fastball velocity
max_fb_velocity <- detailed_pitch_table %>%
filter(AutoPitchType %in% c("Four-Seam", "Sinker", "Cutter")) %>%
summarise(MaxFBVelocity = max(ReleaseSpeed, na.rm = TRUE)) %>%
pull(MaxFBVelocity)
# Display the maximum fastball velocity
cat("Yoon Chae maximum FB velocity: ", max_fb_velocity, "mph\n")
## Yoon Chae maximum FB velocity: 84.94 mph
# Prepare data for plotting pitch locations
pitch_location_data <- Brian_Foley_data %>%
select(AutoPitchType, PlateLocHeight, PlateLocSide, PitchCall) %>%
rename(
PitchHeight = PlateLocHeight,
PitchSide = PlateLocSide
) %>%
mutate(
SwingTake = ifelse(PitchCall %in% c("StrikeSwinging", "FoulBall", "FoulBallFieldable", "FoulBallNotFieldable", "InPlay"), "Swing", "Take"),
Chase = ifelse(SwingTake == "Swing" & (PitchSide < -0.85 | PitchSide > 0.85 | PitchHeight < 1.5 | PitchHeight > 3.5), "Chase", "Non-Chase")
)
# Create the scatter plot with specified strike zone boxes
ggplot(pitch_location_data, aes(x = PitchSide, y = PitchHeight, color = SwingTake, shape = Chase)) +
geom_point(size = 3) +
geom_rect(aes(xmin = -0.5, xmax = 0.5, ymin = 1.75, ymax = 3.25), fill = NA, color = "red", linetype = "solid", size = 1) +
geom_rect(aes(xmin = -0.85, xmax = 0.85, ymin = 1.5, ymax = 3.5), fill = NA, color = "black", linetype = "solid", size = 1) +
geom_rect(aes(xmin = -1.25, xmax = 1.25, ymin = 1.25, ymax = 3.75), fill = NA, color = "gray", linetype = "solid", size = 1) +
scale_x_continuous(limits = c(-2, 2)) +
scale_y_continuous(limits = c(0, 5)) +
coord_fixed(ratio = 1) +
labs(title = "Pitch Locations for Yoon Chae",
x = "Horizontal Location (feet)",
y = "Vertical Location (feet)",
color = "Swing/Take",
shape = "Chase") +
facet_wrap(~ AutoPitchType) +
theme_minimal() +
theme(
legend.position = "right",
panel.grid.major = element_line(color = "grey80"),
panel.grid.minor = element_line(color = "grey90"),
axis.text = element_text(color = "black"),
axis.title = element_text(color = "black"),
plot.title = element_text(color = "black"),
legend.background = element_rect(fill = "white", color = NA),
legend.key = element_rect(fill = "white", color = NA),
legend.text = element_text(color = "black"),
legend.title = element_text(color = "black")
)
# Create the scatter plot for horizontal and vertical breaks
ggplot(detailed_pitch_table, aes(x = HorizontalBreak, y = InducedVerticalBreak, color = AutoPitchType)) +
geom_point(size = 3) + # Increase point size
scale_x_continuous(limits = c(-25, 25)) + # Set horizontal limits to +/- 25 inches
scale_y_continuous(limits = c(-25, 26)) + # Set vertical limits to +/- 25 inches
labs(title = paste("Pitch Movement"),
x = "Horizontal Break (inches)",
y = "Induced Vertical Break (inches)",
color = "Pitch Type") +
theme_minimal() +
theme(
legend.position = "right",
panel.grid.major = element_line(color = "grey80"),
panel.grid.minor = element_line(color = "grey90"),
axis.text = element_text(color = "black"),
axis.title = element_text(color = "black"),
plot.title = element_text(color = "black"),
legend.background = element_rect(fill = "white", color = NA),
legend.key = element_rect(fill = "white", color = NA),
legend.text = element_text(color = "black"),
legend.title = element_text(color = "black")
)
