Official NHA Assessment

Race 6: SUMMER CUP 29 NOVEMBER MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Hollywood Madam
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
4 / 14
Within 2 points
Significant Diffs
10 / 14
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    Merryweather         2    56.0    1    0.00     0.0   -     56           6     +6
2    Witching Hour        2    56.0    2    3.50     0.0   -     57           57    +57
3    Hollywood Madam      4    60.0    3    4.70     0.5   63    63           63    +0
4    Special Star         2    56.0    4    4.80     0.0   -     56           56    +56
5    Future Success       3    60.0    5    8.50     1.0   -     62           62    +62
6    Quello Che           3    60.0    6    8.90     1.0   64    62           62    -2
7    Pepper Tree          2    56.0    7    9.70     0.0   -     56           56    +56
8    Genovefa             3    58.5    8    11.10    1.0   64    59           59    -5
9    Cool Reggae          4    60.0    9    11.30    0.5   -     63           63    +63
10   Nothing Compares     2    52.0    10   11.70    0.0   -     48           48    +48
11   Stampede Ahead       2    56.0    11   12.90    0.0   -     56           56    +56
12   Lady Lancaster       3    60.0    12   18.40    1.0   -     62           62    +62
13   Go Get Ur Armor      2    56.0    13   22.00    0.0   -     56           56    +56
14   Brocken Spectre      3    60.0    14   30.25    1.0   -     62           62    +62
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Merryweather - 88 6 +82 0.0 -
2 Witching Hour - 68 57 +11 0.0 -
3 Hollywood Madam Line 63 65 63 +2 0.5
4 Special Star - 82 56 +26 0.0 -
5 Future Success - 62 62 ✓ Match 1.0 -
6 Quello Che 64 61 62 -1 1.0 -
7 Pepper Tree - 67 56 +11 0.0 -
8 Genovefa 64 72 59 +13 1.0 -
9 Cool Reggae - 64 63 +1 0.5 -
10 Nothing Compares - 59 48 +11 0.0 -
11 Stampede Ahead - 76 56 +20 0.0 -
12 Lady Lancaster - 53 62 -9 1.0 -
13 Go Get Ur Armor - 38 56 -18 0.0 -
14 Brocken Spectre - 13 62 -49 1.0 -
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