Some still jockeying for position to qualify for the year-end championships

We're just a month away from the year-end championships in the ATP and WTA tours, respectively. The top eight in each field will qualify.

While Rafael Nadal has virtually locked up the No. 1 spot, there are a slew of players chasing James Blake for the final position in the chase. The eight players will compete in a round-robin tournament in Shanghai beginning Nov. 10.

Jelena Jankovic, who holds a scant 113-point lead on Serena Williams in the women's rankings, has some separation in the Race to the Sony Ericsson Championships. Similar to the ATP, there are a handful of players just outside the top eight vying to get in. Play begins on Nov. 3 in Doha, Qatar.

Here is how all the current contenders stack up.

Ravi Ubha is a frequent contributor to ESPN.com.