Official NHA Assessment

Race 2: Catch KZN Racing via live streaming on www.galloptv.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Alpenhorn
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
4 / 8
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    Rain Or Shine        4    60.0    1    0.00     2.0   -     66           6     +6
2    Trident King         3    60.0    2    0.30     3.0   65    69           69    +4
3    Alpenhorn            3    60.0    3    2.30     3.0   66    66           66    +0
4    Without Doubt        3    60.0    4    3.80     3.0   63    65           65    +2
5    Bush Fire            3    60.0    5    4.20     3.0   62    65           65    +3
6    The Donelly          3    58.5    6    10.00    3.0   55    61           61    +6
7    Gijima Mfana         6    56.0    7    10.60    0.0   -     62           62    +62
99   Hallerbos            3    60.0    99   0.00     3.0   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rain Or Shine - 82 6 +76 2.0 -
2 Trident King 65 65 69 -4 3.0 -
3 Alpenhorn Line 66 58 66 -8 3.0
4 Without Doubt 63 63 65 -2 3.0 -
5 Bush Fire 62 62 65 -3 3.0 -
6 The Donelly 55 62 61 +1 3.0 -
7 Gijima Mfana - 50 62 -12 0.0 -
99 Hallerbos - 57 64 -7 3.0 -
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