I think if 2 people jump the same distance the higher position goes to who jumped that distance first.
I thought the same but double checking on BBC sport – the Portugese lady jumped it 9 minutes earlier…
"20:11 The women's 10,000m final is under way although there is no British presence because Jo Pavey is out injured. More drama in the women's long jump final as Latvia's Ineta Radevica regains the lead with a leap of 6.92m.
20:02 In the women's long jump, Portugal's Naida Gomes smashes the board of take-off and leaps 6.92m, a season's best, to take the lead from Latvia's Ineta Radevica."