Distance view set using round (back) button

During a training workout on the atletic court we have to run e.g. 5x300 m with a 100 m pauze. 

When I use the round(back) button after 300 m I can see the time but I also want to see "300m" so I can check the traveled distance.

I can't figure out if this is possible. 

If we do a set like 200-300-400-500m and so on it will help me to run the requested distance.

Regards, Ronald