knitr::opts_chunk$set(echo = TRUE, message = FALSE, warning = FALSE)
library(readxl)
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
Valley628 <- read_excel("C:\\Users\\Franco Castagliuolo\\OneDrive - Bentley University\\Neers 24\\Pitchers\\Valley 628\\Valley 628.xlsx")
# Filter the data for the pitcher Matthew Martinez
Matthew_Martinez_data <- Valley628 %>%
filter(Pitcher == "Martinez, Matthew")
# Create a detailed table for each pitch
detailed_pitch_table <- Matthew_Martinez_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 Matthew Martinez")
Detailed Pitch Table for Matthew Martinez
Changeup |
77.00 |
1688.10 |
252.63 |
16.92 |
6.92 |
BallCalled |
6.24 |
1.46 |
4.78 |
8.4 |
Changeup |
78.38 |
1751.17 |
237.46 |
14.85 |
11.10 |
BallCalled |
6.16 |
1.34 |
4.66 |
7.9 |
Four-Seam |
87.82 |
2041.73 |
206.09 |
10.29 |
22.44 |
BallCalled |
6.47 |
0.78 |
4.69 |
6.9 |
Sinker |
87.69 |
2035.37 |
222.04 |
16.79 |
20.06 |
StrikeCalled |
6.44 |
0.81 |
4.94 |
7.4 |
Changeup |
78.32 |
1727.69 |
236.43 |
16.08 |
12.31 |
StrikeCalled |
6.26 |
1.35 |
4.64 |
7.9 |
Changeup |
78.12 |
1587.19 |
251.64 |
20.07 |
8.39 |
InPlay |
6.24 |
1.28 |
4.80 |
8.4 |
Changeup |
78.36 |
NA |
248.41 |
18.78 |
9.08 |
BallCalled |
6.25 |
1.37 |
4.74 |
8.3 |
Curveball |
76.15 |
2466.77 |
42.60 |
-10.51 |
-9.73 |
StrikeCalled |
6.29 |
1.29 |
4.35 |
1.4 |
Curveball |
76.80 |
2481.32 |
41.28 |
-6.56 |
-5.62 |
BallCalled |
6.36 |
1.42 |
4.30 |
1.4 |
Changeup |
78.63 |
1798.75 |
247.64 |
19.07 |
9.63 |
StrikeSwinging |
6.24 |
1.51 |
4.63 |
8.3 |
Curveball |
75.86 |
2370.84 |
27.67 |
-6.01 |
-9.62 |
InPlay |
6.21 |
1.46 |
4.39 |
0.9 |
Changeup |
77.32 |
1640.62 |
246.64 |
20.74 |
10.69 |
StrikeSwinging |
6.19 |
1.41 |
4.68 |
8.2 |
Curveball |
74.48 |
2406.15 |
27.33 |
-7.62 |
-12.82 |
BallCalled |
6.11 |
1.43 |
4.46 |
0.9 |
Four-Seam |
88.17 |
2142.68 |
211.06 |
12.72 |
22.85 |
BallCalled |
6.42 |
0.98 |
4.79 |
7.0 |
Changeup |
78.25 |
1642.32 |
248.39 |
17.99 |
8.87 |
FoulBallNotFieldable |
6.22 |
1.32 |
4.94 |
8.3 |
Changeup |
78.95 |
1589.29 |
238.89 |
15.72 |
11.25 |
StrikeSwinging |
6.18 |
1.51 |
4.57 |
8.0 |
Four-Seam |
88.45 |
1973.60 |
215.16 |
13.46 |
20.58 |
StrikeCalled |
6.29 |
0.93 |
4.87 |
7.2 |
Changeup |
78.10 |
1519.09 |
250.12 |
13.83 |
6.53 |
StrikeSwinging |
6.10 |
1.49 |
5.00 |
8.3 |
Curveball |
76.76 |
2357.51 |
38.44 |
-7.41 |
-7.64 |
BallCalled |
6.26 |
1.24 |
4.44 |
1.3 |
Four-Seam |
87.58 |
2006.15 |
216.88 |
13.00 |
18.67 |
FoulBallNotFieldable |
6.42 |
1.07 |
4.71 |
7.2 |
Changeup |
78.09 |
1540.87 |
267.80 |
18.76 |
2.30 |
StrikeCalled |
6.13 |
1.38 |
4.77 |
8.9 |
Four-Seam |
88.28 |
2040.27 |
214.27 |
11.57 |
18.23 |
BallCalled |
6.37 |
1.18 |
4.76 |
7.1 |
Changeup |
78.26 |
1545.53 |
267.33 |
14.40 |
2.22 |
BallCalled |
6.11 |
1.44 |
4.82 |
8.9 |
Changeup |
79.56 |
1550.92 |
258.96 |
13.68 |
4.16 |
StrikeSwinging |
6.26 |
1.47 |
4.65 |
8.6 |
Changeup |
79.29 |
1655.33 |
236.71 |
12.70 |
9.90 |
FoulBallNotFieldable |
6.10 |
1.52 |
4.58 |
7.9 |
Four-Seam |
88.60 |
2029.58 |
196.19 |
5.56 |
20.56 |
StrikeSwinging |
6.40 |
0.88 |
4.73 |
6.5 |
Curveball |
74.27 |
2372.32 |
47.73 |
-6.96 |
-4.34 |
BallCalled |
6.26 |
1.72 |
4.22 |
1.6 |
Curveball |
75.09 |
2558.23 |
52.13 |
-12.54 |
-7.91 |
BallCalled |
6.22 |
1.42 |
4.43 |
1.7 |
Changeup |
77.52 |
1490.11 |
254.00 |
16.29 |
6.41 |
StrikeSwinging |
6.11 |
1.57 |
4.83 |
8.5 |
Curveball |
76.25 |
2463.07 |
48.43 |
-6.51 |
-3.86 |
FoulBallNotFieldable |
6.31 |
1.37 |
4.44 |
1.6 |
Four-Seam |
87.78 |
2070.77 |
205.66 |
9.16 |
20.44 |
StrikeSwinging |
6.47 |
0.94 |
4.76 |
6.9 |
Changeup |
80.53 |
1567.11 |
249.02 |
16.06 |
7.82 |
StrikeSwinging |
6.21 |
1.61 |
4.87 |
8.3 |
Changeup |
80.28 |
1725.46 |
255.20 |
17.40 |
6.30 |
InPlay |
6.13 |
1.62 |
4.70 |
8.5 |
Changeup |
79.17 |
1586.22 |
254.73 |
16.81 |
6.26 |
BallCalled |
6.14 |
1.45 |
5.11 |
8.5 |
Changeup |
79.42 |
1463.22 |
263.02 |
17.98 |
3.84 |
StrikeSwinging |
6.25 |
1.44 |
5.13 |
8.8 |
Curveball |
77.62 |
2392.06 |
52.83 |
-14.14 |
-9.04 |
FoulBallNotFieldable |
6.27 |
1.31 |
4.49 |
1.8 |
Four-Seam |
88.59 |
2086.76 |
185.17 |
2.13 |
24.95 |
BallCalled |
6.45 |
0.81 |
4.94 |
6.2 |
Changeup |
80.57 |
1596.12 |
223.31 |
12.07 |
14.28 |
BallCalled |
6.15 |
1.44 |
5.25 |
7.4 |
Changeup |
79.35 |
1467.37 |
210.92 |
9.26 |
17.14 |
InPlay |
6.18 |
1.39 |
5.10 |
7.0 |
Changeup |
77.82 |
1554.87 |
261.86 |
18.04 |
4.16 |
BallCalled |
6.15 |
1.45 |
4.50 |
8.7 |
Sinker |
88.00 |
2008.66 |
234.42 |
17.12 |
13.59 |
InPlay |
6.29 |
1.13 |
4.79 |
7.8 |
# 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: 41
# Display the summary table
knitr::kable(pitch_summary, caption = "Summary Pitch Table for Matthew Martinez")
Summary Pitch Table for Matthew Martinez
Changeup |
53.66% |
22 |
7 |
15 |
31.82% |
68.18% |
78.69 |
1604.16 |
8.16 |
16.25 |
248.23 |
8.3 |
6.18 |
1.45 |
4.81 |
Curveball |
21.95% |
9 |
5 |
4 |
55.56% |
44.44% |
75.92 |
2429.81 |
-7.84 |
-8.70 |
42.05 |
1.4 |
6.25 |
1.41 |
4.39 |
Four-Seam |
19.51% |
8 |
4 |
4 |
50.00% |
50.00% |
88.16 |
2048.94 |
21.09 |
9.74 |
206.31 |
6.9 |
6.41 |
0.95 |
4.78 |
Sinker |
4.88% |
2 |
0 |
2 |
0.00% |
100.00% |
87.84 |
2022.01 |
16.82 |
16.95 |
228.23 |
7.6 |
6.36 |
0.97 |
4.86 |
# 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("Matthew Martinez maximum FB velocity: ", max_fb_velocity, "mph\n")
## Matthew Martinez maximum FB velocity: 88.6 mph
# Prepare data for plotting pitch locations
pitch_location_data <- Matthew_Martinez_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 Matthew Martinez",
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
labs(title = "Pitch Movement for Matthew Martinez",
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")
)
