# 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
| Changeup |
84.22 |
1355.35 |
265.52 |
14.79 |
2.32 |
InPlay |
5.60 |
1.85 |
6.60 |
8.9 |
| Sinker |
92.80 |
2291.58 |
226.52 |
15.71 |
15.90 |
FoulBallNotFieldable |
6.12 |
1.23 |
6.74 |
7.6 |
| Slider |
83.74 |
2328.11 |
85.16 |
-5.46 |
0.75 |
StrikeCalled |
5.63 |
2.18 |
6.50 |
2.8 |
| Slider |
82.90 |
2477.37 |
114.83 |
-6.94 |
4.35 |
InPlay |
5.37 |
2.20 |
6.44 |
3.8 |
| Four-Seam |
92.73 |
2325.86 |
217.57 |
12.74 |
17.55 |
BallCalled |
5.85 |
1.62 |
6.86 |
7.3 |
| Four-Seam |
93.09 |
2359.35 |
220.12 |
13.67 |
17.23 |
FoulBallNotFieldable |
5.88 |
1.73 |
6.77 |
7.3 |
| Changeup |
84.80 |
1347.87 |
259.84 |
13.91 |
3.61 |
BallCalled |
5.34 |
1.98 |
6.87 |
8.7 |
| Four-Seam |
92.21 |
2284.24 |
217.28 |
13.62 |
18.94 |
StrikeSwinging |
5.97 |
1.61 |
6.50 |
7.2 |
| Four-Seam |
94.68 |
2399.11 |
214.87 |
12.23 |
18.56 |
FoulBallNotFieldable |
5.93 |
1.48 |
6.88 |
7.2 |
| Changeup |
87.43 |
1430.93 |
240.71 |
12.95 |
8.36 |
InPlay |
5.54 |
1.82 |
6.89 |
8.0 |
| Four-Seam |
92.09 |
2285.95 |
206.22 |
9.57 |
20.60 |
FoulBallNotFieldable |
5.92 |
2.37 |
6.45 |
6.9 |
| Four-Seam |
91.87 |
2281.95 |
211.17 |
12.57 |
21.98 |
InPlay |
5.97 |
2.12 |
6.41 |
7.0 |
| Slider |
83.04 |
2347.77 |
148.74 |
-6.60 |
12.07 |
StrikeSwinging |
5.53 |
3.13 |
6.28 |
5.0 |
| Four-Seam |
92.79 |
2353.40 |
224.77 |
16.66 |
17.91 |
FoulBallNotFieldable |
5.89 |
2.17 |
6.67 |
7.5 |
| Slider |
83.26 |
2313.66 |
114.33 |
-6.49 |
4.26 |
BallinDirt |
5.16 |
3.04 |
6.67 |
3.8 |
| Four-Seam |
92.33 |
2322.35 |
213.94 |
13.39 |
20.94 |
StrikeSwinging |
6.04 |
2.00 |
6.47 |
7.1 |
| Changeup |
83.84 |
1341.60 |
258.34 |
13.07 |
3.81 |
BallCalled |
5.62 |
1.49 |
6.57 |
8.6 |
| Four-Seam |
89.58 |
2184.38 |
216.92 |
13.63 |
19.22 |
InPlay |
5.93 |
1.53 |
6.54 |
7.2 |
| Changeup |
85.22 |
1234.13 |
240.87 |
11.79 |
7.68 |
BallCalled |
5.52 |
2.79 |
6.58 |
8.0 |
| Sinker |
90.69 |
2216.63 |
226.84 |
15.71 |
15.75 |
BallCalled |
5.91 |
2.44 |
6.59 |
7.6 |
| Four-Seam |
91.11 |
2192.59 |
218.94 |
13.78 |
18.11 |
StrikeCalled |
5.84 |
2.19 |
6.57 |
7.3 |
| Four-Seam |
89.64 |
2090.34 |
220.71 |
13.76 |
17.06 |
FoulBallNotFieldable |
5.90 |
2.29 |
6.69 |
7.4 |
| Changeup |
85.16 |
1248.16 |
241.33 |
11.51 |
7.41 |
FoulBallNotFieldable |
5.46 |
2.53 |
6.62 |
8.0 |
| Four-Seam |
90.25 |
2156.26 |
220.44 |
13.34 |
16.61 |
BallCalled |
5.93 |
2.41 |
6.76 |
7.3 |
| Four-Seam |
91.69 |
2278.55 |
219.54 |
13.46 |
17.24 |
BallCalled |
5.77 |
2.38 |
6.81 |
7.3 |
| Slider |
83.08 |
2202.94 |
90.15 |
-8.04 |
1.27 |
BallinDirt |
5.55 |
3.01 |
6.47 |
3.0 |
| Four-Seam |
91.23 |
2152.07 |
220.66 |
13.13 |
16.31 |
FoulBallNotFieldable |
6.00 |
2.09 |
6.43 |
7.4 |
| Four-Seam |
91.57 |
2258.31 |
218.76 |
13.49 |
17.93 |
BallCalled |
6.02 |
2.13 |
6.53 |
7.3 |
| Slider |
83.20 |
2265.15 |
96.66 |
-6.33 |
2.16 |
StrikeCalled |
5.54 |
3.05 |
6.47 |
3.2 |
| Slider |
81.19 |
2180.39 |
70.35 |
-6.76 |
-0.93 |
InPlay |
5.54 |
2.96 |
6.33 |
2.3 |
| Four-Seam |
91.59 |
2246.53 |
216.10 |
12.90 |
18.82 |
StrikeSwinging |
6.05 |
2.13 |
6.54 |
7.2 |
| Four-Seam |
92.44 |
2215.70 |
220.09 |
13.13 |
16.70 |
BallCalled |
5.95 |
2.21 |
6.67 |
7.3 |
| Slider |
82.05 |
2185.56 |
89.89 |
-8.69 |
1.43 |
StrikeSwinging |
5.51 |
2.95 |
6.36 |
3.0 |
| Slider |
81.86 |
2231.24 |
90.63 |
-11.14 |
1.56 |
InPlay |
5.47 |
3.17 |
6.30 |
3.0 |
| Changeup |
84.29 |
1340.00 |
245.42 |
11.06 |
6.39 |
BallCalled |
5.41 |
2.63 |
6.69 |
8.2 |
| Sinker |
90.15 |
2170.45 |
231.08 |
14.12 |
12.59 |
InPlay |
5.92 |
2.22 |
6.70 |
7.7 |
| Slider |
84.79 |
2235.49 |
83.62 |
-6.26 |
0.62 |
InPlay |
5.55 |
2.92 |
6.48 |
2.8 |
| Four-Seam |
91.73 |
2327.33 |
221.48 |
15.13 |
18.30 |
BallCalled |
5.83 |
2.45 |
6.65 |
7.4 |
| Changeup |
84.13 |
1321.32 |
245.97 |
14.95 |
7.83 |
StrikeSwinging |
5.40 |
2.74 |
6.79 |
8.2 |
| Changeup |
84.65 |
1267.18 |
258.14 |
17.07 |
4.76 |
BallCalled |
5.50 |
2.81 |
6.43 |
8.6 |
| Sinker |
90.05 |
2263.98 |
225.40 |
16.38 |
17.35 |
BallinDirt |
5.89 |
2.35 |
6.67 |
7.5 |
| Sinker |
88.03 |
2141.77 |
225.60 |
15.14 |
16.09 |
BallCalled |
5.84 |
2.46 |
6.62 |
7.5 |
# 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: 42
# Display the summary table
knitr::kable(pitch_summary, caption = "Summary Pitch Table for Dennis Helwig")
Summary Pitch Table for Dennis Helwig
| Changeup |
21.43% |
9 |
5 |
4 |
55.56% |
44.44% |
84.86 |
1320.73 |
5.80 |
13.46 |
250.68 |
8.4 |
5.49 |
2.29 |
6.67 |
| Four-Seam |
42.86% |
18 |
6 |
12 |
33.33% |
66.67% |
91.81 |
2261.90 |
18.33 |
13.34 |
217.75 |
7.3 |
5.93 |
2.05 |
6.62 |
| Sinker |
11.90% |
5 |
2 |
3 |
40.00% |
60.00% |
90.34 |
2216.88 |
15.54 |
15.41 |
227.09 |
7.6 |
5.94 |
2.14 |
6.66 |
| Slider |
23.81% |
10 |
0 |
10 |
0.00% |
100.00% |
82.91 |
2276.77 |
2.75 |
-7.27 |
98.44 |
3.3 |
5.48 |
2.86 |
6.43 |
# 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: 94.68 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", "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")
)
# 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")
)
