# Load necessary libraries
library(dplyr)
##
## Attaching package: 'dplyr'
## The following objects are masked from 'package:stats':
##
## filter, lag
## The following objects are masked from 'package:base':
##
## intersect, setdiff, setequal, union
library(ggplot2)
library(knitr)
# Load the data
file_path <- "C:\\Users\\Franco Castagliuolo\\OneDrive - Bentley University\\Shore 77.xlsx"
data <- readxl::read_excel(file_path)
# Filter the data for the pitcher Dennis Helwig
Dennis_Helwig_data <- data %>%
filter(Pitcher == "Helwig, Dennis")
# Create a detailed table for each pitch
detailed_pitch_table <- Dennis_Helwig_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 Dennis Helwig")
Detailed Pitch Table for Dennis Helwig
Four-Seam |
93.79 |
2369.39 |
225.94 |
17.24 |
17.80 |
InPlay |
6.05 |
1.17 |
6.46 |
7.5 |
Four-Seam |
91.77 |
2304.56 |
220.73 |
14.20 |
17.73 |
InPlay |
6.16 |
2.08 |
6.53 |
7.4 |
Sinker |
91.38 |
2390.89 |
228.62 |
16.84 |
16.07 |
InPlay |
6.08 |
2.38 |
5.91 |
7.6 |
Changeup |
84.56 |
1228.63 |
289.61 |
12.11 |
-3.00 |
InPlay |
5.65 |
2.64 |
6.40 |
9.7 |
Changeup |
84.02 |
1285.38 |
277.23 |
17.85 |
-0.93 |
InPlay |
5.54 |
2.67 |
6.44 |
9.2 |
Four-Seam |
91.05 |
2286.12 |
217.15 |
14.76 |
20.70 |
InPlay |
6.03 |
2.17 |
6.22 |
7.2 |
Splitter |
83.95 |
1182.92 |
263.84 |
11.42 |
2.37 |
StrikeCalled |
5.65 |
2.73 |
6.26 |
8.8 |
Four-Seam |
91.20 |
2260.80 |
219.70 |
14.74 |
18.81 |
BallCalled |
5.99 |
2.35 |
6.06 |
7.3 |
Four-Seam |
91.35 |
2206.88 |
221.62 |
14.23 |
16.99 |
BallCalled |
6.02 |
2.17 |
6.58 |
7.4 |
Sinker |
89.45 |
2130.65 |
223.59 |
15.23 |
17.02 |
BallCalled |
6.11 |
2.17 |
6.50 |
7.5 |
Sinker |
89.29 |
2157.89 |
225.49 |
16.29 |
17.08 |
BallCalled |
5.95 |
2.29 |
6.62 |
7.5 |
Sinker |
89.03 |
2168.86 |
225.50 |
16.46 |
17.23 |
StrikeCalled |
6.07 |
2.19 |
6.65 |
7.5 |
Sinker |
88.40 |
2173.65 |
226.82 |
17.87 |
17.85 |
BallCalled |
6.04 |
2.21 |
6.72 |
7.6 |
Sinker |
91.37 |
2138.85 |
223.26 |
15.05 |
17.00 |
StrikeCalled |
5.90 |
2.41 |
6.47 |
7.4 |
Changeup |
84.28 |
1368.92 |
260.25 |
15.63 |
3.75 |
FoulBallNotFieldable |
5.62 |
2.45 |
6.53 |
8.7 |
Splitter |
85.09 |
1253.49 |
259.89 |
17.35 |
4.31 |
BallCalled |
5.58 |
2.45 |
6.45 |
8.7 |
Sinker |
91.14 |
2227.80 |
225.90 |
17.29 |
17.87 |
BallCalled |
5.98 |
2.35 |
6.55 |
7.5 |
Changeup |
83.80 |
1201.70 |
259.26 |
12.76 |
3.66 |
BallCalled |
5.58 |
2.67 |
6.52 |
8.6 |
Sinker |
89.55 |
2132.28 |
227.14 |
17.10 |
16.96 |
StrikeCalled |
5.95 |
2.24 |
6.80 |
7.6 |
Changeup |
83.84 |
1275.10 |
270.31 |
17.57 |
1.12 |
InPlay |
5.65 |
1.68 |
6.40 |
9.0 |
Sinker |
91.94 |
2277.08 |
228.45 |
18.06 |
17.04 |
FoulBallNotFieldable |
6.04 |
1.48 |
6.52 |
7.6 |
Slider |
82.29 |
2223.88 |
100.39 |
-12.27 |
3.61 |
StrikeCalled |
5.60 |
2.26 |
6.01 |
3.3 |
Changeup |
83.74 |
1447.65 |
221.72 |
10.12 |
12.50 |
StrikeSwinging |
5.59 |
1.62 |
6.37 |
7.4 |
Slider |
80.30 |
2269.76 |
88.23 |
-12.57 |
0.86 |
BallCalled |
5.67 |
2.16 |
5.75 |
2.9 |
Changeup |
84.88 |
1233.01 |
255.55 |
12.58 |
4.30 |
InPlay |
5.70 |
1.39 |
6.35 |
8.5 |
Four-Seam |
90.83 |
2172.04 |
218.53 |
14.37 |
19.07 |
StrikeCalled |
6.07 |
1.31 |
6.12 |
7.3 |
Changeup |
83.86 |
1189.43 |
239.99 |
7.38 |
5.52 |
StrikeCalled |
5.70 |
1.26 |
6.23 |
8.0 |
Slider |
83.41 |
2201.01 |
83.84 |
-4.57 |
0.68 |
BallCalled |
5.38 |
1.99 |
6.10 |
2.8 |
Slider |
83.10 |
2196.36 |
84.09 |
-8.50 |
0.34 |
StrikeSwinging |
5.56 |
2.29 |
5.94 |
2.8 |
Four-Seam |
90.77 |
2215.91 |
218.01 |
14.34 |
19.42 |
FoulBallNotFieldable |
5.94 |
1.68 |
5.95 |
7.3 |
Slider |
82.26 |
2068.90 |
89.81 |
-5.70 |
1.36 |
BallCalled |
5.52 |
2.68 |
6.12 |
3.0 |
Four-Seam |
92.92 |
2190.34 |
218.36 |
13.34 |
17.82 |
FoulBallNotFieldable |
5.98 |
1.39 |
6.33 |
7.3 |
Four-Seam |
92.76 |
2314.31 |
221.95 |
16.19 |
19.01 |
FoulBallNotFieldable |
6.03 |
1.44 |
6.42 |
7.4 |
Splitter |
86.51 |
1327.27 |
267.39 |
14.02 |
1.71 |
FoulBallNotFieldable |
5.53 |
1.71 |
6.24 |
8.9 |
Slider |
82.58 |
2357.52 |
110.60 |
-8.13 |
4.63 |
FoulBallNotFieldable |
5.51 |
2.54 |
6.04 |
3.7 |
Changeup |
84.19 |
1308.39 |
258.40 |
10.50 |
3.31 |
InPlay |
5.38 |
1.82 |
6.37 |
8.6 |
Slider |
80.65 |
2245.53 |
109.31 |
-6.29 |
3.34 |
FoulBallNotFieldable |
5.57 |
3.12 |
5.99 |
3.6 |
Four-Seam |
91.40 |
2255.83 |
221.78 |
14.80 |
17.76 |
StrikeCalled |
6.08 |
2.10 |
5.98 |
7.4 |
Changeup |
84.38 |
1230.81 |
278.36 |
18.03 |
-1.35 |
StrikeSwinging |
5.57 |
2.56 |
6.13 |
9.3 |
Four-Seam |
91.19 |
2212.38 |
214.94 |
13.60 |
20.73 |
StrikeCalled |
5.95 |
2.33 |
5.97 |
7.2 |
Changeup |
83.51 |
1259.56 |
274.75 |
16.87 |
-0.07 |
BallinDirt |
5.35 |
2.81 |
6.28 |
9.2 |
Four-Seam |
91.96 |
2268.28 |
223.51 |
16.04 |
18.05 |
FoulBallNotFieldable |
5.92 |
2.39 |
6.29 |
7.5 |
Changeup |
85.74 |
1209.79 |
254.02 |
14.31 |
5.42 |
StrikeSwinging |
5.52 |
2.84 |
6.34 |
8.5 |
Four-Seam |
89.97 |
2215.66 |
218.80 |
15.70 |
20.82 |
InPlay |
6.00 |
1.34 |
6.37 |
7.3 |
Sinker |
90.19 |
2173.25 |
226.30 |
18.08 |
18.55 |
FoulBallNotFieldable |
6.06 |
2.26 |
6.29 |
7.5 |
Changeup |
84.70 |
1310.51 |
268.34 |
11.82 |
1.52 |
FoulBallNotFieldable |
5.59 |
2.77 |
6.26 |
8.9 |
Changeup |
84.32 |
1217.85 |
257.92 |
15.68 |
4.61 |
InPlay |
5.47 |
2.67 |
6.16 |
8.6 |
Slider |
82.33 |
2138.23 |
101.53 |
-1.01 |
1.71 |
BallCalled |
5.40 |
3.30 |
6.24 |
3.4 |
Four-Seam |
91.07 |
2282.95 |
221.12 |
16.39 |
19.98 |
BallCalled |
6.03 |
2.32 |
6.32 |
7.4 |
Sinker |
90.44 |
2123.93 |
224.16 |
16.96 |
18.76 |
BallCalled |
5.92 |
2.62 |
6.48 |
7.5 |
Sinker |
88.81 |
2161.82 |
227.66 |
18.33 |
17.97 |
StrikeCalled |
5.92 |
2.35 |
6.35 |
7.6 |
Sinker |
88.53 |
2095.31 |
217.97 |
15.25 |
20.79 |
InPlay |
5.74 |
2.31 |
6.66 |
7.3 |
# 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 == "BallCalled"),
Strikes = sum(PitchCall != "BallCalled"), # 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: 52
# Display the summary table
knitr::kable(pitch_summary, caption = "Summary Pitch Table for Dennis Helwig")
Summary Pitch Table for Dennis Helwig
Changeup |
26.92% |
14 |
1 |
13 |
7.14% |
92.86% |
84.27 |
1269.05 |
2.88 |
13.80 |
261.84 |
8.7 |
5.57 |
2.28 |
6.34 |
Four-Seam |
26.92% |
14 |
3 |
11 |
21.43% |
78.57% |
91.57 |
2253.96 |
18.91 |
15.00 |
220.15 |
7.3 |
6.02 |
1.87 |
6.26 |
Sinker |
25.00% |
13 |
5 |
8 |
38.46% |
61.54% |
89.96 |
2180.94 |
17.71 |
16.83 |
225.45 |
7.5 |
5.98 |
2.25 |
6.50 |
Slider |
15.38% |
8 |
4 |
4 |
50.00% |
50.00% |
82.11 |
2212.65 |
2.07 |
-7.38 |
95.97 |
3.2 |
5.53 |
2.54 |
6.02 |
Splitter |
5.77% |
3 |
1 |
2 |
33.33% |
66.67% |
85.18 |
1254.56 |
2.80 |
14.26 |
263.71 |
8.8 |
5.59 |
2.30 |
6.32 |
# Calculate maximum fastball velocity
max_fb_velocity <- detailed_pitch_table %>%
filter(AutoPitchType %in% c("Four-Seam", "Two-Seam", "Sinker", "Cutter")) %>%
summarise(MaxFBVelocity = max(ReleaseSpeed, na.rm = TRUE)) %>%
pull(MaxFBVelocity)
# Display the maximum fastball velocity
cat("Dennis Helwig maximum FB velocity: ", max_fb_velocity, "mph\n")
## Dennis Helwig maximum FB velocity: 93.79 mph
# Prepare data for plotting pitch locations
pitch_location_data <- Dennis_Helwig_data %>%
select(AutoPitchType, PlateLocHeight, PlateLocSide, PitchCall) %>%
rename(
PitchHeight = PlateLocHeight,
PitchSide = PlateLocSide
) %>%
mutate(
SwingTake = ifelse(PitchCall %in% c("StrikeSwinging", "FoulBallNonSwinging", "FoulBallFieldable", "FoulBallNotFieldable", "InPlay"), "Swing", "Take"),
Chase = ifelse(SwingTake == "Swing" & (PitchSide < -0.75 | PitchSide > 0.75 | 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 = -0.75, xmax = 0.75, 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 Dennis Helwig",
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")
)
## Warning: Using `size` aesthetic for lines was deprecated in ggplot2 3.4.0.
## ℹ Please use `linewidth` instead.
## This warning is displayed once every 8 hours.
## Call `lifecycle::last_lifecycle_warnings()` to see where this warning was
## generated.
## Warning: Removed 3 rows containing missing values or values outside the scale range
## (`geom_point()`).

# 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, 25)) + # Set vertical limits to +/- 25 inches
labs(title = paste("Pitch Movement for", unique(detailed_pitch_table$AutoPitchType)),
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")
)
