By Noah Tan
First-half goals by evergreen striker Aleksandar Duric and Sead Hadzibulic were enough to consign Home to their fifth defeat of the season and leave them seven points adrift of the Stags on the table.
Despite creating several decent opportunities throughout the game, Home were unable to find a way back into the game and had Lewis to thank for keeping the scoreline respectable after a string of fine saves from the Singapore international.
And while the defeat leaves the Protectors' title hopes hanging by a thread, Baek was refusing to throw in the towel with six games remaining.
"There are still six games left to play and there are still 18 points to fight for," Baek said after the game.
"We will not give up on the title and will continue trying to improve over the next few games."
Reflecting on the game, Baek expressed his disappointment with the result but was nonetheless pleased with the effort and commitment shown by his players.
"We are very disappointed to have lost the game," he added.
"We were 2-0 down early on and the players spent all their energy trying to make a comeback but just couldn't do so.
"The important thing is the players tried their best."
The South Korean also denied his side were inferior to the Stags in terms of overall play, and claimed that the only difference between the two sides on Thursday was the finishing.
"I don't think Tampines were the better side," Baek mused.
"We created a few chances and came close to scoring but we just failed to finish those chances.
"That is the key point between the two teams."
Home are next in action on September 15 when they take on high-flying Harimau Muda.