Official NHA Assessment

Race 3: www.tabgold.co.za MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Dee Day
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 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    Meritorious          3    58.0    1    0.00     7.0   -     54           6     +6
2    Fate Decreed         3    60.0    2    1.05     7.0   56    62           62    +6
3    Mocha Blend          3    58.0    3    1.55     7.0   -     57           57    +57
4    Dee Day              4    60.0    4    1.60     4.5   66    66           66    +0
5    Di Rosa              4    60.0    5    2.10     4.5   51    66           66    +15
6    Run For Peace        3    58.0    6    3.80     7.0   -     55           55    +55
7    Silver Quill         3    58.0    7    14.30    7.0   -     54           54    +54
99   Seeking Space        3    58.0    99   0.00     7.0   -     54           54    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Meritorious - 73 6 +67 7.0 -
2 Fate Decreed 56 54 62 -8 7.0 -
3 Mocha Blend - 117 57 +60 7.0 -
4 Dee Day Line 66 53 66 -13 4.5
5 Di Rosa 51 54 66 -12 4.5 -
6 Run For Peace - 54 55 -1 7.0 -
7 Silver Quill - - 54 -54 7.0 -
99 Seeking Space - 63 54 +9 7.0 -
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