Advantage in Chess960 Start Positions Revisited

Returning to the botched table in Theoretical Advantage in Chess960 Start Positions, here's a correction. For the given chess960 start positions (SP), the following table shows the number of games played (#), the percentage of games won by White, won by Black, and drawn (%W, %B, %D), and the overall score for White (%S).

SP	FEN	#	%W	%B	%D	%S
Highest Overall Score White
024	NBQNBRKR	42	61.9	9.5	28.6	76.2
376	NBRKBRNQ	26	69.3	19.3	11.5	75.0
868	QBBRKRNN	40	62.6	15.0	22.5	73.8
266	NRKNBBQR	30	66.7	23.3	10.0	71.7
729	RKNBBQNR	28	64.3	25.1	10.7	69.6
Highest Overall Score Black
537	RNKBBQNR	28	17.8	53.6	28.6	32.1
396	QBRNNKBR	36	22.2	55.6	22.2	33.3
764	RBKNNRBQ	30	23.4	53.4	23.3	35.0
201	QNRBBKNR	44	20.5	50.0	29.5	35.2
082	BNNRKBRQ	34	26.5	55.9	17.6	35.3
Traditional Start
518	RNBQKBNR	28	28.6	50.0	21.4	39.3
Traditional Start (K&Q switched)
534	RNBKQBNR	22	27.3	40.9	31.8	43.2

Since the previous table showed (incorrectly) the highest overall score for White and for Black, I've used the same selection here. With some overlap to be expected between the two versions of the table, three SPs are the same for White and two are the same for Black. The previous table showed highest and lowest % draws correctly, so I haven't repeated the data here.

The corrected calculations for the traditional start position (SP518) raise a red flag over the validity of the data. They show White's overall score to be slightly more than 39%, when modern master experience says it should be around 55%. This indicates that the margin of error for the other SPs is significant.