Official NHA Assessment

Race 6: www.galloptv.co.za CLASS 4 (Open. Benchmark at 60.0kg = 80)

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Line Horse
Nocturnal Flight
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 10
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    Jaham                3    57.0    1    0.00     5.0   84    72           72    -12
2    Arverni King         5    60.0    2    1.40     0.0   80    91           91    +11
3    Nocturnal Flight     3    59.0    3    2.80     5.0   78    78           78    +0
4    Escapologist         5    59.0    4    3.20     0.0   78    88           88    +10
5    Riccardo             7    59.5    5    3.50     0.0   79    88           88    +9
5    Fine Admiral         3    58.0    5    3.50     5.0   76    75           75    -1
7    Send Me              3    56.5    7    4.70     5.0   73    71           71    -2
8    Rodriguez            6    60.0    8    6.40     0.0   80    88           88    +8
99   Givers Grace         2    54.0    99   0.00     0.0   -     76           76    +0
99   Intuitive Spirit     4    56.5    99   0.00     2.5   -     76           76    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jaham 84 89 72 +17 5.0 -
2 Arverni King 80 86 91 -5 0.0 -
3 Nocturnal Flight Line 78 72 78 -6 5.0
4 Escapologist 78 77 88 -11 0.0 -
5 Riccardo 79 68 88 -20 0.0 -
5 Fine Admiral 76 73 75 -2 5.0 -
7 Send Me 73 64 71 -7 5.0 -
8 Rodriguez 80 69 88 -19 0.0 -
99 Givers Grace - 61 76 -15 0.0 -
99 Intuitive Spirit - 57 76 -19 2.5 -
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