Tallent was definitely struggling and the chase pack was glad to taste their first victim.
With Erik Tysse (Norway) and Matej Toth (Slovokia) in striking range, a challenge from behind could happen at any time.
Again the battle in the front was between three men.
Between 15km and 20km, with Tallent behind, Heffernan and Grzegorz Sudol (Poland) started to look ahead.
but they weren't the only ones!
As things were progressing in the relative shade, the sun decided to show itself with a fury.
Sudol and Heffernan made their break and took their turn in the lead. Diniz was hanging on and it looked like we would be in for quite a race!
Although Tallent faded, he didn't drop and seemed to be recovering.
Those in the chase pack seemed to be struggling enough with the heat and the quickening pace and didn't seem too excited about moving to the front.
Meanwhile, Canada's Evan Dunfee seemed to be walking well at sub 4:00 pace.
The front was crowded with only a second seperating the top 5.
Click here to see the rest of the story..