Official NHA Assessment

Race 2: BOOK FOR CHARITY MILE MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Cape Lights
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
10 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Que Ceu Azul         2    58.0    1    0.00     0.0   -     78           6     +6
2    Cape Lights          5    58.0    2    2.00     0.0   81    81           81    +0
3    Batik                3    60.0    3    5.10     8.0   53    66           66    +13
4    Sparkling Jubilee    5    58.0    4    5.30     0.0   -     78           78    +78
5    Broadlands           3    58.0    5    6.70     8.0   -     62           62    +62
6    Aunt Pittypat        3    58.0    6    7.50     8.0   -     62           62    +62
7    Voshaarnooi          2    58.0    7    12.80    0.0   60    78           78    +18
8    Treaty               2    56.5    8    14.00    0.0   60    75           75    +15
9    Queen Britanna       2    58.0    9    14.05    0.0   62    78           78    +16
10   Tiz Magic            2    58.0    10   15.30    0.0   -     78           78    +78
11   Camerata             2    58.0    11   20.80    0.0   68    78           78    +10
12   Arrow Sky            4    60.0    12   21.00    5.0   55    72           72    +17
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Que Ceu Azul - 72 6 +66 0.0 -
2 Cape Lights Line 81 74 81 -7 0.0
3 Batik 53 57 66 -9 8.0 -
4 Sparkling Jubilee - 76 78 -2 0.0 -
5 Broadlands - 69 62 +7 8.0 -
6 Aunt Pittypat - 65 62 +3 8.0 -
7 Voshaarnooi 60 50 78 -28 0.0 -
8 Treaty 60 48 75 -27 0.0 -
9 Queen Britanna 62 57 78 -21 0.0 -
10 Tiz Magic - 52 78 -26 0.0 -
11 Camerata 68 49 78 -29 0.0 -
12 Arrow Sky 55 50 72 -22 5.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. 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