The victory at the Vitality Stadium ended Lampard's 10-match losing run in his 100th Premier League game as a manager.
Chelsea claimed a 3-1 victory over Bournemouth on Saturday to end a poor run and, in the process, register impressive records.
The Blues were on the verge of equalling an unwanted club record of seven consecutive defeats in all competitions, but the win at Bournemouth with goals from Conor Gallagher, Benoit Badiashile, and Joao Felix saw them avoid the record and win for the first time since March 11.
According to Opta, Chelsea completed the league double against Bournemouth for just the second time, also doing so in 2016–17 under Antonio Conte.
The Blues also ended a run of seven Premier League games without victory (D2 L5), scoring more goals against Bournemouth on Saturday than in their previous six combined (2).
Meanwhile, Lampard gained his first victory as Chelsea's interim boss and his first Premier League win in 13 games, eight with Everton and five with Chelsea, since a 3-0 home win against Crystal Palace in October.
19:24 - 06.05.2023
PREMIER LEAGUE Huge relief for Lampard as Chelsea end poor run at Bournemouth
The Blues scored two late goals that gave them their first win after losing six previous games.
On the other hand, Bournemouth have lost three of their last four Premier League home games (W1), conceding at least two goals in each defeat (nine in total).
After the away win, Lampard chose to praise the Cherries: "It was a hard-fought win because Bournemouth are a good team and they can really be dangerous at any time in the game because of their speed, energy, and the players they have at the front of the pitch," he told Sky Sports.
"That's why they've had a great season, and they deserve huge credit."
09:53 - 06.05.2023
FOOTBALL Sterling outlines the kind of manager Chelsea need to become competitive
The Blues are set to have a new tactician next season after making managerial changes recently.
He warned his players not to lose focus even after ending a run of six straight losses across all competitions in an emphatic manner.
"If confidence is higher and we're clinical at the top end of the pitch with our feelings, not just our movements, I think we might score more goals in the first half," he said.
"We're happy because when you don't have that feeling for a while, it gradually knocks you down.
09:53 - 06.05.2023
FOOTBALL Sterling outlines the kind of manager Chelsea need to become competitive
The Blues are set to have a new tactician next season after making managerial changes recently.
"But we cannot take our foot off the pedal in terms of trying to take steps forward until the end of this season because it's important."