# Filter the data for the pitcher Josh Keevan
Josh_Keevan_data <- data %>%
filter(Pitcher == "Keevan, Josh")
# Create a detailed table for each pitch
detailed_pitch_table <- Josh_Keevan_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 Josh Keevan")
Detailed Pitch Table for Josh Keevan
Changeup |
74.91 |
1669.79 |
109.40 |
-16.54 |
7.32 |
StrikeSwinging |
5.22 |
-0.95 |
6.58 |
3.6 |
Changeup |
75.67 |
1721.38 |
123.50 |
-15.31 |
11.68 |
FoulBallNotFieldable |
5.21 |
-0.97 |
6.42 |
4.1 |
Splitter |
82.41 |
2158.80 |
141.93 |
-15.68 |
21.52 |
BallCalled |
5.77 |
-0.23 |
5.94 |
4.7 |
Changeup |
76.08 |
1666.39 |
106.82 |
-14.82 |
5.92 |
InPlay |
5.19 |
-0.71 |
6.67 |
3.6 |
Changeup |
76.79 |
1706.65 |
95.17 |
-15.49 |
2.79 |
StrikeCalled |
5.19 |
-0.96 |
6.75 |
3.2 |
Splitter |
83.92 |
2185.12 |
138.95 |
-15.53 |
19.25 |
StrikeSwinging |
5.69 |
-0.37 |
5.89 |
4.6 |
Changeup |
83.27 |
2134.38 |
151.74 |
-10.36 |
20.73 |
HitByPitch |
5.78 |
-0.28 |
6.06 |
5.1 |
Changeup |
77.02 |
1802.31 |
114.37 |
-17.93 |
9.77 |
BallCalled |
5.17 |
-0.99 |
6.42 |
3.8 |
Changeup |
77.23 |
1770.43 |
111.79 |
-15.05 |
7.64 |
StrikeSwinging |
5.17 |
-0.83 |
6.56 |
3.7 |
Splitter |
84.23 |
2287.54 |
135.59 |
-15.74 |
17.60 |
StrikeSwinging |
5.76 |
-0.58 |
5.98 |
4.5 |
Changeup |
82.62 |
2322.16 |
131.91 |
-16.78 |
16.67 |
BallCalled |
5.69 |
-0.37 |
5.83 |
4.4 |
Changeup |
76.16 |
1698.89 |
104.81 |
-19.24 |
6.73 |
BallCalled |
5.12 |
-0.79 |
6.48 |
3.5 |
Changeup |
79.36 |
2070.30 |
137.58 |
-16.36 |
19.64 |
StrikeCalled |
5.56 |
-0.57 |
6.14 |
4.6 |
Curveball |
70.35 |
2278.77 |
301.33 |
8.91 |
-3.45 |
BallCalled |
5.20 |
-0.81 |
5.33 |
10.0 |
Splitter |
85.11 |
2312.87 |
137.39 |
-17.00 |
20.00 |
StrikeCalled |
5.55 |
-0.48 |
5.88 |
4.6 |
Changeup |
76.85 |
1731.87 |
112.68 |
-16.95 |
8.62 |
BallCalled |
5.17 |
-0.61 |
6.81 |
3.8 |
Changeup |
82.45 |
2233.73 |
126.17 |
-18.60 |
15.20 |
FoulBallNotFieldable |
5.52 |
-0.48 |
6.10 |
4.2 |
Changeup |
83.36 |
2356.99 |
126.39 |
-21.46 |
17.46 |
BallCalled |
5.66 |
-0.53 |
6.00 |
4.2 |
Changeup |
83.43 |
2341.89 |
142.61 |
-15.86 |
22.39 |
FoulBallNotFieldable |
5.65 |
-0.47 |
6.00 |
4.8 |
Changeup |
81.02 |
2181.82 |
142.25 |
-13.86 |
19.51 |
InPlay |
5.54 |
-0.44 |
5.91 |
4.7 |
Changeup |
81.54 |
2276.12 |
136.10 |
-16.75 |
18.92 |
BallCalled |
5.68 |
-0.53 |
5.94 |
4.5 |
Splitter |
82.98 |
2288.49 |
133.69 |
-18.02 |
18.67 |
StrikeCalled |
5.63 |
-0.59 |
6.01 |
4.5 |
Four-Seam |
84.21 |
2276.03 |
147.07 |
-12.41 |
20.63 |
StrikeSwinging |
5.66 |
-0.43 |
5.82 |
4.9 |
Changeup |
78.81 |
2205.56 |
131.90 |
-18.35 |
18.03 |
BallCalled |
5.78 |
-0.23 |
6.41 |
4.4 |
Changeup |
76.14 |
1710.50 |
116.21 |
-16.00 |
9.34 |
FoulBallNotFieldable |
5.16 |
-0.79 |
6.54 |
3.9 |
Splitter |
83.42 |
2275.73 |
135.06 |
-17.72 |
19.24 |
StrikeSwinging |
5.68 |
-0.58 |
6.22 |
4.5 |
# 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: 26
# Display the summary table
knitr::kable(pitch_summary, caption = "Summary Pitch Table for Josh Keevan")
Summary Pitch Table for Josh Keevan
Changeup |
69.23% |
18 |
7 |
11 |
38.89% |
61.11% |
79.04 |
1977.84 |
13.24 |
-16.43 |
123.41 |
4.1 |
5.41 |
-0.64 |
6.31 |
Curveball |
3.85% |
1 |
1 |
0 |
100.00% |
0.00% |
70.35 |
2278.77 |
-3.45 |
8.91 |
301.33 |
10.0 |
5.20 |
-0.81 |
5.33 |
Four-Seam |
3.85% |
1 |
0 |
1 |
0.00% |
100.00% |
84.21 |
2276.03 |
20.63 |
-12.41 |
147.07 |
4.9 |
5.66 |
-0.43 |
5.82 |
Splitter |
23.08% |
6 |
1 |
5 |
16.67% |
83.33% |
83.68 |
2251.43 |
19.38 |
-16.61 |
137.10 |
4.6 |
5.68 |
-0.47 |
5.99 |
# 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("Josh Keevan maximum FB velocity: ", max_fb_velocity, "mph\n")
## Josh Keevan maximum FB velocity: 84.21 mph
# Prepare data for plotting pitch locations
pitch_location_data <- Josh_Keevan_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 Josh Keevan",
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 Josh Keevan",
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")
)
