Official NHA Assessment

Race 1: www.tabgold.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Nazare
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 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    Savantrix            4    57.0    1    0.00     2.5   -     64           6     +6
2    Nazare               3    60.0    2    2.20     2.0   71    71           71    +0
3    Railroad             2    55.5    3    4.70     1.0   -     64           64    +64
4    Givethatmanabells    4    57.0    4    5.00     2.5   -     64           64    +64
5    The Golden Goal      4    57.0    5    5.90     2.5   -     64           64    +64
6    Olympic Standard     3    60.0    6    8.10     2.0   59    71           71    +12
7    Monks Throne         2    55.5    7    11.10    1.0   -     64           64    +64
8    Frozen Kingdom       3    60.0    8    13.00    2.0   53    71           71    +18
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Savantrix - 90 6 +84 2.5 -
2 Nazare Line 71 70 71 -1 2.0
3 Railroad - 60 64 -4 1.0 -
4 Givethatmanabells - 70 64 +6 2.5 -
5 The Golden Goal - 55 64 -9 2.5 -
6 Olympic Standard 59 53 71 -18 2.0 -
7 Monks Throne - 68 64 +4 1.0 -
8 Frozen Kingdom 53 46 71 -25 2.0 -
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