Chelsea are unbeaten in their last 13 home Premier League meetings with West Ham (W9 D4) since a 2-3 loss in September 2002. They are 1.3130/100 to win.
West Ham have won just one of their last seven Premier League meetings with Chelsea (D3 L3), winning 1-0 at home under David Moyes in December 2017. The draw is 6.411/2.
Having failed to win any of their first three home league games this season (D2 L1), Chelsea have won each of their last three at Stamford Bridge without conceding. They last won four in a row while keeping a clean sheet each time back in January 2015 (a run of five in which the fourth game was against West Ham). Chelsea are 2.47/5 to win to nil.
West Ham are winless in their last seven Premier League games (D2 L5), losing each of the last three while conceding three goals each time. Twice before in the competition have West Ham lost four in a row while conceding 3+ goals each time (September 2010 and September 2016), and they could become the first team to suffer this on three separate occasions. A Chelsea win and over 2.5 goals is 1.75/7.
This will be Chelsea's 250th Premier League London derby (W128 D67 L54). The Blues have won more such games than any other side in the competition's history, and also have the best points-per-game ratio (1.8). Chelsea are 1.9210/11 to win half-time/full-time.
West Ham have lost more Premier League London derby matches than any other side - their next such defeat will be their 100th in the competition (W67 D48 L99). The draw half-time/Chelsea full-time double result is 4.47/2.
Chelsea have opened the scoring in more different Premier League games than any other side this season (11). Five of those 11 goals have been netted by striker Tammy Abraham, more than any other player in the division. Abraham is 3.9 to score the first goal.
Just 32% of Chelsea's Premier League goals this season have been scored in home games (9/28). The lowest ratio of goals scored at home in a complete Premier League season is 34% by Manchester City in 2006-07 (10/29). Under 3.5 goals is 1.814/5.
West Ham's Michail Antonio has scored in each of his last three Premier League London derby games - no player has ever scored in four such successive appearances in the competition for the Hammers. Antonio is 6.05/1 to score.
In all competitions this season, West Ham have conceded a goal on average every 41 minutes with Roberto Jiménez in goal (19 in 776 mins) compared to one every 72 minutes with Lukasz Fabianski between the posts (8 in 574 mins). Over 3.5 goals is 2.166/5.