I like "indicates" better. "Reflects" wants something to reflect, like "The score reflects the great difference in skill level between the two teams."
I can't think of a standard opposite other than a straight negation: "The game was not as close as the score indicates." I might say informally that the game was much more of a blowout than the score indicates. "Further" is no good.
The opposite would be: "The outcome of the game was never in doubt even though the score was close."
"The game was a lot closer than the score indicates." would mean that even though the score was, say, 30 to 0, the losing team was continually threatening to score and was thwarted by unusual bad breaks, while the winning team got its scores by lucky breaks. The score could easily have b