Official NHA Assessment

Race 1: DOWNLOAD THE RACE CARD ONLINE www.goldcircle.co.za MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Miss Dora
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
6 / 7
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    Guest Getorixx       4    60.0    1    0.00     5.0   59    70           65    +6
2    Miss Dora            3    60.0    2    0.25     4.5   71    71           71    +0
3    Pretty Analia        5    60.0    3    4.45     0.0   69    80           80    +11
4    Foreign Lady         3    60.0    4    6.45     4.5   57    71           71    +14
5    Magical Stones       3    60.0    5    7.25     4.5   -     71           71    +71
6    Ladies Day           3    58.5    6    7.30     4.5   58    68           68    +10
99   Kyniska              3    60.0    99   0.00     4.5   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Guest Getorixx 59 63 65 -2 5.0 -
2 Miss Dora Line 71 58 71 -13 4.5
3 Pretty Analia 69 61 80 -19 0.0 -
4 Foreign Lady 57 60 71 -11 4.5 -
5 Magical Stones - 46 71 -25 4.5 -
6 Ladies Day 58 56 68 -12 4.5 -
99 Kyniska - 61 71 -10 4.5 -
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