| group_session   | player_1_id   | player_2_id   | player_1_station   | player_2_station   | timestamp_unix   | timestamp_iso8601   | task_started   | seconds   | ball_position_x   | ball_position_y   | player_1_paddle_position_x   | player_1_paddle_position_y   | player_2_paddle_position_x   | player_2_paddle_position_y   | player_1_score   | player_2_score   |
|-----------------|---------------|---------------|--------------------|--------------------|------------------|---------------------|----------------|-----------|-------------------|-------------------|------------------------------|------------------------------|------------------------------|------------------------------|------------------|------------------|