Is this what you are after?
CREATE TABLE #Scores(
TID int identity(1,1),--PK
ID int,
Score int)
INSERT INTO #Scores(ID,Score) SELECT 1,10
INSERT INTO #Scores(ID,Score) SELECT 2,5
INSERT INTO #Scores(ID,Score) SELECT 2,15
INSERT INTO #Scores(ID,Score) SELECT 2,25
INSERT INTO #Scores(ID,Score)...