Official NHA Assessment

Race 1: Netball South Africa MAIDEN PLATE (For all Maidens)

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Line Horse
El Draque
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 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    Rainbow Reward       5    60.0    1    0.00     0.0   -     76           6     +6
2    Plaza Accord         2    57.0    2    0.50     1.0   -     68           68    +68
3    El Draque            5    60.0    3    2.40     0.0   76    76           76    +0
4    Seattle Ripper       2    57.0    4    3.90     1.0   -     68           68    +68
5    Attaboy              2    55.5    5    4.50     1.0   -     65           65    +65
6    Helsinki             2    57.0    6    5.60     1.0   -     68           68    +68
7    Vino Dolce           2    57.0    7    7.70     1.0   -     68           68    +68
8    Tiger In Red         3    60.0    8    9.10     2.0   66    72           72    +6
9    Grand Navigator      2    57.0    9    9.20     1.0   -     68           68    +68
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rainbow Reward - 89 6 +83 0.0 -
2 Plaza Accord - 84 68 +16 1.0 -
3 El Draque Line 76 57 76 -19 0.0
4 Seattle Ripper - 59 68 -9 1.0 -
5 Attaboy - 65 65 ✓ Match 1.0 -
6 Helsinki - 72 68 +4 1.0 -
7 Vino Dolce - - 68 -68 1.0 -
8 Tiger In Red 66 66 72 -6 2.0 -
9 Grand Navigator - - 68 -68 1.0 -
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