--- a
+++ b/submission/velocity_plot.py
@@ -0,0 +1,41 @@
+import os
+import matplotlib.pyplot as plt
+
+log_dir = './'
+log_files = sorted([log for log in os.listdir(log_dir) if '.txt' in log])
+print('log files:', log_files)
+
+plt.figure()
+plt.grid(True)
+plt.title('submit velocity distribution')
+plt.xlabel('timestamp')
+plt.ylabel('velocity')
+
+target_x = [i + 1 for i in range(300)]
+target_y = [3.0] * 300
+plt.plot(target_x, target_y, ':', color='red', label='target - 2700')
+
+for log in log_files:
+    lines = None
+    score = None
+    with open(log, 'r') as fp:
+        lines = fp.readlines()
+        score = lines[606].split(': ')[1].replace('\n', '')
+        lines = lines[6:306]
+
+    print('log file:', log, 'score:', score)
+
+    x_axis = []
+    y_axis = []
+
+    for line in lines:
+        line = line.replace('\n', '')
+        timestamp = int(line.split(' score')[0].replace(' ', '').split('=')[1])
+        velocity = float(line.split('velocity=')[1])
+        x_axis.append(timestamp)
+        y_axis.append(velocity)
+
+    plt.plot(x_axis, y_axis, label=log.split('.')[0].split('log_')[1] + ' - ' + score)
+
+plt.legend()
+plt.savefig('velocity_distribution.png', dpi=300)