# Filter the data for the pitcher Dennis Helwig
Brian_Foley_data <- data %>%
filter(Pitcher == "Helwig, Dennis")
# 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 Dennis Helwig")
Detailed Pitch Table for Dennis Helwig
Four-Seam |
92.92 |
2289.03 |
209.55 |
11.32 |
21.15 |
BallCalled |
6.39 |
1.64 |
5.96 |
7.0 |
Four-Seam |
92.89 |
2339.37 |
206.86 |
10.89 |
22.62 |
BallCalled |
6.22 |
1.71 |
6.05 |
6.9 |
Changeup |
84.83 |
1508.47 |
255.67 |
12.01 |
4.27 |
StrikeCalled |
5.94 |
2.03 |
5.95 |
8.5 |
Changeup |
84.54 |
1385.09 |
268.95 |
12.40 |
1.42 |
StrikeCalled |
5.92 |
1.90 |
5.97 |
9.0 |
Four-Seam |
92.68 |
2285.67 |
213.32 |
11.71 |
18.86 |
InPlay |
6.39 |
1.56 |
5.89 |
7.1 |
Curveball |
80.97 |
2268.45 |
68.60 |
-17.27 |
-5.29 |
InPlay |
6.00 |
2.48 |
5.53 |
2.3 |
Changeup |
84.91 |
1517.46 |
238.17 |
14.07 |
9.89 |
StrikeCalled |
5.92 |
1.62 |
5.98 |
7.9 |
Four-Seam |
93.35 |
2305.43 |
223.46 |
15.33 |
17.27 |
BallCalled |
6.26 |
1.32 |
5.92 |
7.4 |
Changeup |
85.74 |
1532.63 |
250.77 |
15.83 |
6.66 |
StrikeCalled |
5.91 |
1.85 |
5.91 |
8.4 |
Slider |
82.74 |
2401.47 |
77.76 |
-13.96 |
-1.58 |
BallCalled |
5.84 |
2.20 |
5.55 |
2.6 |
Changeup |
86.18 |
1336.09 |
235.02 |
11.85 |
9.50 |
BallCalled |
5.95 |
1.80 |
5.95 |
7.8 |
Four-Seam |
92.94 |
2380.84 |
211.26 |
12.96 |
22.49 |
FoulBallNotFieldable |
6.24 |
1.44 |
5.95 |
7.0 |
Four-Seam |
91.47 |
2286.37 |
214.58 |
14.01 |
21.65 |
InPlay |
6.38 |
1.49 |
5.92 |
7.2 |
Four-Seam |
91.59 |
2275.49 |
213.41 |
13.47 |
21.60 |
StrikeCalled |
6.39 |
1.33 |
5.64 |
7.1 |
Slider |
80.09 |
2302.35 |
88.99 |
-7.26 |
1.35 |
StrikeCalled |
6.11 |
2.22 |
5.23 |
3.0 |
Changeup |
85.99 |
1527.10 |
254.86 |
15.97 |
5.57 |
StrikeSwinging |
5.98 |
1.83 |
5.81 |
8.5 |
Curveball |
78.63 |
2281.42 |
78.71 |
-18.45 |
-2.08 |
BallCalled |
6.05 |
2.56 |
5.42 |
2.6 |
Four-Seam |
92.07 |
2349.57 |
215.36 |
13.81 |
20.61 |
StrikeSwinging |
6.27 |
1.64 |
6.10 |
7.2 |
Four-Seam |
93.19 |
2273.71 |
215.20 |
13.61 |
20.37 |
StrikeSwinging |
6.26 |
1.57 |
5.98 |
7.2 |
Four-Seam |
94.17 |
2403.20 |
222.15 |
16.07 |
18.85 |
FoulBallNotFieldable |
6.25 |
1.51 |
5.80 |
7.4 |
Changeup |
86.80 |
1532.36 |
249.03 |
16.29 |
7.52 |
BallCalled |
5.85 |
1.91 |
5.78 |
8.3 |
Slider |
82.63 |
2273.71 |
76.03 |
-11.93 |
-1.57 |
BallCalled |
5.81 |
2.36 |
5.65 |
2.5 |
Changeup |
85.15 |
1567.85 |
258.13 |
18.07 |
5.00 |
StrikeSwinging |
5.83 |
1.90 |
6.09 |
8.6 |
Four-Seam |
92.99 |
2383.82 |
222.56 |
15.62 |
18.21 |
InPlay |
6.32 |
1.64 |
5.84 |
7.4 |
Four-Seam |
92.06 |
2312.73 |
211.35 |
11.76 |
20.46 |
BallCalled |
6.39 |
2.31 |
6.14 |
7.0 |
Slider |
81.47 |
2195.14 |
89.27 |
-11.57 |
1.22 |
StrikeCalled |
5.85 |
3.07 |
5.41 |
3.0 |
Slider |
81.54 |
2332.96 |
101.73 |
-14.09 |
4.23 |
BallCalled |
5.77 |
3.20 |
5.64 |
3.4 |
Curveball |
79.92 |
2226.86 |
81.96 |
-14.45 |
-0.67 |
BallCalled |
5.90 |
3.36 |
5.67 |
2.7 |
Four-Seam |
92.22 |
2259.17 |
207.54 |
11.59 |
23.39 |
StrikeCalled |
6.33 |
2.39 |
6.02 |
6.9 |
Changeup |
85.04 |
1441.31 |
248.31 |
18.06 |
8.40 |
BallCalled |
5.86 |
2.54 |
6.04 |
8.3 |
Sinker |
93.33 |
2315.62 |
224.86 |
16.98 |
18.17 |
InPlay |
6.28 |
2.35 |
6.02 |
7.5 |
Sinker |
92.01 |
2370.08 |
226.44 |
16.88 |
17.27 |
BallCalled |
6.33 |
2.42 |
5.89 |
7.5 |
Slider |
82.66 |
2340.67 |
77.88 |
-12.10 |
-1.25 |
BallCalled |
5.78 |
3.38 |
5.67 |
2.6 |
Four-Seam |
91.02 |
2337.98 |
217.70 |
14.57 |
20.11 |
InPlay |
6.25 |
2.45 |
5.84 |
7.3 |
Changeup |
85.15 |
1468.89 |
225.97 |
13.46 |
14.29 |
BallCalled |
5.91 |
2.97 |
5.96 |
7.5 |
Changeup |
83.92 |
1517.59 |
262.92 |
19.15 |
3.65 |
StrikeSwinging |
5.82 |
2.88 |
6.23 |
8.8 |
Four-Seam |
90.97 |
2268.88 |
214.43 |
13.02 |
20.20 |
BallCalled |
6.20 |
2.35 |
5.94 |
7.1 |
Changeup |
84.04 |
1485.05 |
240.41 |
16.23 |
10.48 |
BallCalled |
5.88 |
2.86 |
6.10 |
8.0 |
Sinker |
89.80 |
2196.31 |
228.69 |
15.92 |
15.17 |
BallCalled |
6.20 |
2.63 |
5.91 |
7.6 |
Sinker |
90.95 |
2254.71 |
229.10 |
17.90 |
16.81 |
FoulBallNotFieldable |
6.34 |
2.22 |
5.84 |
7.6 |
Slider |
83.00 |
1178.71 |
73.07 |
-9.10 |
-1.28 |
BallCalled |
5.91 |
3.42 |
5.87 |
2.4 |
Four-Seam |
90.61 |
2251.18 |
215.07 |
14.55 |
22.01 |
InPlay |
6.32 |
2.44 |
5.71 |
7.2 |
# 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: 42
# Display the summary table
knitr::kable(pitch_summary, caption = "Summary Pitch Table for Dennis Helwig")
Summary Pitch Table for Dennis Helwig
Changeup |
28.57% |
12 |
5 |
7 |
41.67% |
58.33% |
85.19 |
1484.99 |
7.22 |
15.28 |
249.02 |
8.3 |
5.90 |
2.17 |
5.98 |
Curveball |
7.14% |
3 |
2 |
1 |
66.67% |
33.33% |
79.84 |
2258.91 |
-2.68 |
-16.72 |
76.42 |
2.5 |
5.98 |
2.80 |
5.54 |
Four-Seam |
38.10% |
16 |
5 |
11 |
31.25% |
68.75% |
92.32 |
2312.65 |
20.62 |
13.39 |
214.61 |
7.2 |
6.30 |
1.80 |
5.92 |
Sinker |
9.52% |
4 |
2 |
2 |
50.00% |
50.00% |
91.52 |
2284.18 |
16.86 |
16.92 |
227.27 |
7.6 |
6.29 |
2.41 |
5.92 |
Slider |
16.67% |
7 |
5 |
2 |
71.43% |
28.57% |
82.02 |
2146.43 |
0.16 |
-11.43 |
83.53 |
2.8 |
5.87 |
2.84 |
5.57 |
# 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("Dennis Helwig maximum FB velocity: ", max_fb_velocity, "mph\n")
## Dennis Helwig maximum FB velocity: 94.17 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 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")
)

# 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"),
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")
)
