本研究目的是分析 2010年世界盃足球會內賽中，失分時間之演變過程，藉以提供國內各級教練及球員訓練時之參考。以 2010年世界盃 32個國家 64場比賽為主，自中國時報、自由時報及年代電視台轉播錄製而成之 DVD，經由再生慢速觀察並記錄各場比賽失分時間的各種演變情形進而分析，並將資料整理分類、統計算出平均數及百分比加以探討後，獲致以下之結論： 一、在 64場全部比賽失分時間分析中，共失分 145球，平均每場失分 2.27%球。 二、上、下半場的失分次數之比，以下半場失分 86球，佔 59.31%，多於上半場之 59球，佔 40.69%。而失分高峰期，集中在下半場結束前 15分鐘，下半場是失分率較高的危險時段，但上半場的失分率也不容忽視。本研究證明隨著比賽時間越接近尾聲，各隊選手體力透支及精神力無法集中，導致防守出現漏洞，所以，造成下半場結束前 15分鐘是失分的高峰期，應特別注意結束前之 15分鐘的防守。因此，未來國內各層級教練在比賽中對於時間的把握及運用是相當重要的。

The purpose of the study is to analyze the procedure of losing ball in 2010 Football World Cup and offer our coaches and players for reference. We analyzed those games which 32 soccer teams joined in 64 matches by DVD recorded from Era TV and played them in slow motion, recording the time of losing ball in every match. The mean and percentage of the results were gathered after analyzing. The conclusions are as follows : (1) The numbers of losing ball in all 64 matches is 145 and 2.27 %per match. (2) Comparing the numbers of losing ball in both halfs, it is 86(59.31%) in the second half, which is more than 59 (40.69%) in the first half. The high rates are focused on the last 15 minutes before the second half. The dangerous period occurs at the most in the second half and the rate of losing ball in the first half should not be overlooked. The study proves the strength and spirit of players in each team are getting worse when it comes to an end and result in weaknesses in defense. Thus the high rates happen in the last 15 minutes in the second half and should particularly pay attention to the defense in the last 15 minutes before the end. Therefore, it is important for our coaches to make good use of time in the match in the future.