Sebastian Coe, a former European 800m medallist, highlights the importance of the 500-600m stretch in the women's 800m final. He calls it the 'killing zone', where the race will likely be decided.

The race features Keely Hodgkinson, Audrey Werro, and Femke Broeders-Bol. Coe believes the back straight will be crucial, with the race likely won or lost there. Read more racing coverage.

Coe, who finished third in the 1978 European 800m, emphasizes the lack of room for error in an 800m race. He notes that tactical mistakes are less tolerated here than in longer races. Related: Hodgkinson advances to 800m final after Werro's fall.

This original Runner World brief is based on reporting from Athletics Weekly. Visit the source for its complete reporting, context and any later corrections.