Official NHA Assessment

Race 5: www.galloptv.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Rainbow Of Roses
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
9 / 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    Intuitive Spirit     4    60.0    1    0.00     8.0   70    74           70    +0
2    Walkie Talkie        2    51.5    2    1.20     0.0   66    78           78    +12
3    Rainbow Of Roses     3    56.5    3    1.50     10.5  67    67           67    +0
4    Magic Hat Trick      3    60.0    4    3.70     10.5  70    71           71    +1
5    Lightningfork        3    52.5    5    5.30     10.5  -     54           54    +54
6    Gift Of Royal        3    55.0    6    6.80     10.5  -     59           59    +59
7    Fire Force           4    60.0    7    10.20    8.0   65    74           74    +9
8    Summer Lightning     3    60.0    8    13.40    10.5  48    69           69    +21
9    Great Timing         2    51.0    9    27.40    0.0   -     72           72    +72
10   Castle Mey           3    58.5    10   29.80    10.5  64    66           66    +2
11   Abacom               3    55.5    11   53.00    10.5  -     60           60    +60
99   Racing Boy           2    55.0    99   0.00     0.0   -     80           80    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Intuitive Spirit 70 57 70 -13 8.0 -
2 Walkie Talkie 66 72 78 -6 0.0 -
3 Rainbow Of Roses Line 67 66 67 -1 10.5
4 Magic Hat Trick 70 61 71 -10 10.5 -
5 Lightningfork - 62 54 +8 10.5 -
6 Gift Of Royal - 58 59 -1 10.5 -
7 Fire Force 65 60 74 -14 8.0 -
8 Summer Lightning 48 46 69 -23 10.5 -
9 Great Timing - 33 72 -39 0.0 -
10 Castle Mey 64 61 66 -5 10.5 -
11 Abacom - 46 60 -14 10.5 -
99 Racing Boy - 60 80 -20 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