Tachi-Waza refers to standing techniques in Judo, a martial art that emphasizes throws and grappling. These techniques are performed while both practitioners are on their feet, focusing on balance, leverage, and timing to execute effective throws. In Judo competitions, mastering Tachi-Waza is crucial for gaining an advantage over an opponent. Successful execution can lead to points or even an immediate victory, known as ippon. Practitioners train extensively in these techniques to improve their skills and overall performance in matches.