CLEAN : Marathon winner Daniel Wanjiru: You have to push limits

The transcript covers a runner's experience in preparing for and competing in a marathon. It highlights the importance of training, strategic planning during the race, and overcoming challenges such as falling behind and dealing with physical issues like a hamstring problem. The runner shares insights on how to stay prepared and adapt to unexpected situations during a competition.

What was the speaker's experience with blood testing?

How did the speaker prepare for the London Marathon?

What challenges did the speaker face during the marathon?

What was the speaker's expectation regarding their marathon time?

What physical issue did the speaker mention that could affect their performance?