```py
import random
import time

print("Get ready to race!")
print("3")
time.sleep(1)
print("2")
time.sleep(1)
print("1")
time.sleep(1)
print("GO!")

track_length = 50
player_position = 0
computer_position = 0

while player_position < track_length and computer_position < track_length:
    player_move = input("Press ENTER to move forward.")
    computer_move = random.randint(1, 3)

    player_position += 1
    computer_position += computer_move

    print("You're at position", player_position)
    print("The computer is at position", computer_position)

if player_position >= track_length:
    print("Congratulations, you won!")
else:
    print("Sorry, the computer won.")
```

このシンプルなレースゲームでは、プレイヤーはコンピュータと対戦し、どちらが先にトラックの端に到達できるかを競います。コースの長さは50に設定され、プレイヤーもコンピュータもポジション0からスタートします。プレイヤーはENTERキーを押すことで前進でき、コンピュータはランダムなスペース数（1～3の間）を移動します。

プレイヤーまたはコンピュータのいずれかがトラックの終端（50の位置）に到達すると、ゲームは終了します。プレーヤーが先に終点に到達した場合、そのプレーヤーの勝ちとなる。コンピュータが先に終点に到達した場合、プレーヤーの負けとなる。
```py
import random
import time

print("Get ready to race!")
print("3")
time.sleep(1)
print("2")
time.sleep(1)
print("1")
time.sleep(1)
print("GO!")

track_length = 50
player_position = 0
computer_position = 0

while player_position < track_length and computer_position < track_length:
    player_move = input("Press ENTER to move forward.")
    computer_move = random.randint(1, 3)

    player_position += 1
    computer_position += computer_move

    print("You're at position", player_position)
    print("The computer is at position", computer_position)

if player_position >= track_length:
    print("Congratulations, you won!")
else:
    print("Sorry, the computer won.")
```

In this simple racing game, the player races against the computer to see who can reach the end of the track first. The track length is set to 50, and both the player and computer start at position 0. The player can move forward by pressing ENTER, while the computer moves a random number of spaces (between 1 and 3).

The game ends once either the player or computer reaches the end of the track (position 50). If the player reaches the end first, they win the game. If the computer reaches the end first, the player loses.