She improved that mark to 6,823 when winning the Europeans last year .
In an imperious display in Berlin , Ennis became world champion as she won four of the seven events and recorded a personal best of 6,731 points .
Ennis improved that mark to 6,823 when winning the Europeans last year .
In an imperious display in Berlin , Ennis became world champion as she won four of the seven events and recorded a personal best of 6,731 points .