Including this week’s festivities in Shenzhen and Chengdu, only six weeks and 11 tournaments remain until the year-end championship at the O2 Arena. With five of the eight spots still in play, the race to London is heating up.
Rafael Nadal, Roger Federer, and Novak Djokovic have already secured their places in the Nitto ATP Finals. Juan Martin Del Potro is next in line, less than 100 ranking points away from mathematically clinching. Alexander Zverev is a virtual lock at No. 5 in the current race, while Marin Cilic, Dominic Thiem, and Kevin Anderson are also in line for berths but still have some work to do.
John Isner finds himself at ninth in the race at the moment, but he is skipping the Asian swing after his wife gave birth to their first child earlier this month. As such, it is Kei Nishikori who has the best chance of displacing either Cilic, Thiem, or Anderson. Fabio Fognini, David Goffin, Stefanos Tsitsipas, Pablo Carreno Busta, Milos Raonic, Borna Coric, Grigor Dimitrov, Marco Cecchinato, Diego Schwartzman, and Kyle Edmund are also in the mix, but they would have to make serious moves over the coming weeks.
Based on current form (Djokovic is the reigning Wimbledon and U.S. Open champion) and past history at the year-end championship (he is a five-time champion, including four triumphs in London), the Serb has to be considered the favorite right now to triumph in London on Nov. 18 at the world championships. If you are looking for a more detailed breakdown of the possible favorites for the Nitto ATP Finals, then these Sign Up Bonuses will give you the relevant information to match the criteria of bonuses that you are looking for. 
Goffin, Tsitsipas, and Coric are all playing this week in Shenzhen as they hope to add as many as 250 points to their 2018 totals. Fognini, meanwhile, is the No. 1 seed in Chengdu.
Following these 250-point events, the Asian swing will ratchet up in both importance and prestige–giving players the opportunity to do some serious shuffling in the race to London with 500-point tournaments in Beijing and Tokyo on the heels of a Masters 1000 in Shanghai. A jam-packed month of October also features 500s in Basel and Vienna plus the end of the proverbial regular season with the Paris Masters.
[polldaddy poll=10119284]
think the top 8 will hold on to their spots