Official NHA Assessment

Race 9: NEXT VAAL RACEMEETING THURSDAY 24 NOVEMBER CLASSIFIED STAKES (For horses with nett rating of 75 and below)

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Line Horse

Admiralty Arch

Reference for assessment

Exact Matches

1 / 15

Calculated = Official

Close Matches

4 / 15

Within 2 points

Significant Diffs

9 / 15

More than 5 points

Detailed Assessment

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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    After Hours          7    54.0    1    0.00     0.0   59    69           65    +6
2    Admiralty Arch       3    58.0    2    1.00     7.0   67    67           67    +0
3    Big City Girl        4    50.5    3    2.50     4.0   56    56           56    +0
4    Funky Music          4    58.0    4    3.50     4.0   66    70           70    +4
5    Burmese Tiara        4    58.0    5    4.75     4.0   71    69           69    -2
6    Timbavati River      3    56.0    6    5.00     7.0   61    59           59    -2
7    Stolen Thunder       3    58.0    7    5.50     7.0   65    63           63    -2
8    Silly Fella          4    56.0    8    6.50     4.0   60    65           65    +5
9    Twice As Wild        6    56.0    9    8.00     0.0   65    73           73    +8
10   West Point           3    54.0    10   12.00    7.0   57    55           55    -2
11   Irontail             4    58.0    11   36.00    4.0   67    69           69    +2
12   In Cahoots           6    60.0    12   36.50    0.0   71    81           81    +10
99   Rattle Bag           6    54.0    99   0.00     0.0   -     69           69    +0
99   Morethanafeeling     2    58.0    99   0.00     0.0   -     77           77    +0
99   Tulip Tree           2    56.0    99   0.00     0.0   -     73           73    +0
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Horse-by-Horse Comparison

Pos	Horse	Pre-Rating	Official New	Calculated	Discrepancy	WFA (kg)	Line Horse
1	After Hours	59	79	65	+14	0.0	-
2	Admiralty Arch Line	67	77	67	+10	7.0
3	Big City Girl	56	59	56	+3	4.0	-
4	Funky Music	66	83	70	+13	4.0	-
5	Burmese Tiara	71	68	69	-1	4.0	-
6	Timbavati River	61	79	59	+20	7.0	-
7	Stolen Thunder	65	69	63	+6	7.0	-
8	Silly Fella	60	51	65	-14	4.0	-
9	Twice As Wild	65	51	73	-22	0.0	-
10	West Point	57	53	55	-2	7.0	-
11	Irontail	67	64	69	-5	4.0	-
12	In Cahoots	71	54	81	-27	0.0	-
99	Rattle Bag	-	71	69	+2	0.0	-
99	Morethanafeeling	-	77	77	✓ Match	0.0	-
99	Tulip Tree	-	96	73	+23	0.0	-

Assessment Methodology

Calculation Steps:

Identify Line Horse - consistent performer used as reference
Calculate WFA Allowance based on age, distance, and month
Apply Drag Adjustment for beaten margin
Calculate Actual Weight Performance:
Weight - Drag - WFA
Compare to Line Horse to determine race rating
Apply special rules (maiden caps, layoff allowance)

Key Formulas:

Drag Effect: Varies by distance (see Benchmarks page)
1 length ≈ 1kg at 1 mile (1600m)
WFA Scale: Based on Admiral Rous's 1855 table
Rating Points: 1kg = 2 rating points