I currently run the 400m and 800m with good times. I am still a little confused about how to end these races by leaning.
I'm not a 100 or 200m runner, but how would I lean at the end of those races if it is close? For example, in the Rio 2016 Olympic 200m final, Christophe Lemaitre leans quite early before the finish:
The runner who came fourth (and was incredibly close) quickly snapped his head forward instead.
Which way is more effective for this event?
However, in the 800m, would it be best to just place your chest forward or lean and possibly lose momentum?