Official NHA Assessment

Race 1: DOWNLOAD THE RACE CARD ONLINE www.goldcircle.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Mount Meru
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 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    Teerex               4    59.0    1    0.00     9.0   80    70           70    -10
2    Yannakis             2    59.0    2    2.50     5.0   82    78           78    -4
3    Isorender            2    59.0    3    4.30     5.0   81    78           78    -3
4    Mount Meru           4    56.0    4    5.90     9.0   64    64           64    +0
5    Almond Butter        2    59.0    5    7.50     5.0   62    78           78    +16
6    Zin Zan Dan          2    55.0    6    7.65     5.0   64    70           70    +6
7    Master Owl           3    59.0    7    11.75    7.5   -     73           73    +73
8    Grande Signor        3    59.0    8    23.55    7.5   -     73           73    +73
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Teerex 80 66 70 -4 9.0 -
2 Yannakis 82 67 78 -11 5.0 -
3 Isorender 81 63 78 -15 5.0 -
4 Mount Meru Line 64 50 64 -14 9.0
5 Almond Butter 62 65 78 -13 5.0 -
6 Zin Zan Dan 64 64 70 -6 5.0 -
7 Master Owl - 52 73 -21 7.5 -
8 Grande Signor - 34 73 -39 7.5 -
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