Official NHA Assessment

Race 3: www.galloptv.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Ravens Sword
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 9
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    Liketheclappers      3    60.0    1    0.00     10.0  62    59           59    -3
2    Duke Of Africa       5    56.0    2    0.30     0.0   71    76           76    +5
3    Rock Fall            2    56.0    3    0.70     0.0   75    76           76    +1
4    Ravens Sword         3    60.0    4    1.20     10.0  63    63           63    +0
5    The Bund             2    54.5    5    4.80     0.0   -     68           68    +68
6    Barbatti             3    60.0    6    5.55     10.0  58    59           59    +1
7    Power Star           2    56.0    7    12.35    0.0   -     71           71    +71
8    Hollywood Star       2    56.0    8    18.75    0.0   -     71           71    +71
9    Vorticity            4    60.0    9    22.15    7.0   42    65           65    +23
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Liketheclappers 62 63 59 +4 10.0 -
2 Duke Of Africa 71 76 76 ✓ Match 0.0 -
3 Rock Fall 75 80 76 +4 0.0 -
4 Ravens Sword Line 63 53 63 -10 10.0
5 The Bund - 69 68 +1 0.0 -
6 Barbatti 58 47 59 -12 10.0 -
7 Power Star - 58 71 -13 0.0 -
8 Hollywood Star - 59 71 -12 0.0 -
9 Vorticity 42 38 65 -27 7.0 -
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