Official NHA Assessment

Race 4: www.tabgold.co.za MR 76 HANDICAP (Open)

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Line Horse
Riccardo
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
5 / 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    Shoot The Rapids     4    59.0    1    0.00     2.5   84    64           84    +0
2    Riccardo             7    58.0    2    1.40     0.0   72    72           72    +0
3    African Dusk         5    60.0    3    2.60     0.0   76    75           75    -1
4    Rodriguez            6    60.5    4    2.75     0.0   77    75           75    -2
5    Blazing Light        3    58.5    5    3.65     5.0   73    61           63    -10
6    Eventidor            6    58.0    6    5.95     0.0   72    67           67    -5
7    Dontstopmenow        3    58.5    7    7.35     5.0   73    58           63    -10
8    Every Cloud          3    58.5    8    7.85     5.0   73    58           63    -10
9    Lucretius            6    57.0    9    7.95     0.0   73    65           65    -8
99   Catch The Tune       6    60.5    99   0.00     0.0   -     72           72    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Shoot The Rapids 84 117 84 +33 2.5 -
2 Riccardo Line 72 68 72 -4 0.0
3 African Dusk 76 83 75 +8 0.0 -
4 Rodriguez 77 69 75 -6 0.0 -
5 Blazing Light 73 62 63 -1 5.0 -
6 Eventidor 72 89 67 +22 0.0 -
7 Dontstopmenow 73 62 63 -1 5.0 -
8 Every Cloud 73 72 63 +9 5.0 -
9 Lucretius 73 64 65 -1 0.0 -
99 Catch The Tune - 70 72 -2 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