This is the run by run breakdown for the 6 times 28:21:

1: 4:27.234 (LRT 3:34.819)

2: 4:24.033 (LRT 3:31.618)

3: 4:32.052 (LRT 3:39.637)

4: 4:27.465 (LRT 3:35.050)

5: 4:26.904 (LRT 3:34.489)

6: 4:26.805 (LRT 03:34.390)

Insanity. This is going to be hard to beat