Shericka Jackson in line for Olympic double after sealing 200m ticket in thrilling fashion

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2

1

X

2