Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING TUESDAY 10 MAY FM 67 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Mariposa
Reference for assessment
Exact Matches
2 / 16
Calculated = Official
Close Matches
3 / 16
Within 2 points
Significant Diffs
4 / 16
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    Code Zero            3    58.5    1    0.00     2.5   69    58           69    +0
2    Evoke                5    52.5    2    3.30     0.0   51    54           54    +3
3    Mariposa             4    54.5    3    3.50     1.0   56    56           56    +0
4    Queen Bomi           4    58.5    4    4.00     1.0   64    63           63    -1
5    Cape Bouquet         3    58.0    5    4.10     2.5   68    59           59    -9
6    Rattle Bag           6    60.0    6    5.00     0.0   72    66           66    -6
7    Western Dance        6    59.0    7    5.10     0.0   65    64           64    -1
8    Liverpool Legend     4    59.0    8    5.30     1.0   65    62           62    -3
9    Diamonds n Dollars   4    57.0    9    5.80     1.0   61    58           58    -3
10   Night Lily           4    57.5    10   7.05     1.0   62    59           59    -3
11   Kissed By Fire       4    54.5    11   7.30     1.0   56    53           53    -3
12   Fasinada             4    55.5    12   7.35     1.0   58    55           55    -3
13   Irish Dame           5    48.5    13   7.55     0.0   52    43           43    -9
14   Global Louise        3    58.5    14   7.75     2.5   69    58           59    -10
15   Rabia The Rebel      7    59.0    15   11.25    0.0   65    64           64    -1
16   Nabeela              5    58.5    16   16.50    0.0   67    63           63    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Code Zero 69 76 69 +7 2.5 -
2 Evoke 51 51 54 -3 0.0 -
3 Mariposa Line 56 46 56 -10 1.0
4 Queen Bomi 64 58 63 -5 1.0 -
5 Cape Bouquet 68 62 59 +3 2.5 -
6 Rattle Bag 72 71 66 +5 0.0 -
7 Western Dance 65 60 64 -4 0.0 -
8 Liverpool Legend 65 59 62 -3 1.0 -
9 Diamonds n Dollars 61 50 58 -8 1.0 -
10 Night Lily 62 60 59 +1 1.0 -
11 Kissed By Fire 56 48 53 -5 1.0 -
12 Fasinada 58 52 55 -3 1.0 -
13 Irish Dame 52 47 43 +4 0.0 -
14 Global Louise 69 66 59 +7 2.5 -
15 Rabia The Rebel 65 64 64 ✓ Match 0.0 -
16 Nabeela 67 63 63 ✓ Match 0.0 -
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