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
Kyniska
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 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    Fort J'adore         3    60.0    1    0.00     5.0   -     58           6     +6
2    Pretty Analia        5    60.0    2    1.40     0.0   62    68           68    +6
3    County Kildare       4    60.0    3    2.50     6.0   60    56           56    -4
4    Kyniska              3    60.0    4    3.20     5.0   58    58           58    +0
5    When Evening Comes   5    60.0    5    3.70     0.0   -     68           68    +68
6    Miss Dora            3    60.0    6    4.30     5.0   72    58           62    -10
7    Chessade             3    60.0    7    8.00     5.0   35    58           58    +23
8    Scotty's Lass        3    58.5    8    22.30    5.0   -     55           55    +55
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Fort J'adore - 67 6 +61 5.0 -
2 Pretty Analia 62 61 68 -7 0.0 -
3 County Kildare 60 52 56 -4 6.0 -
4 Kyniska Line 58 61 58 +3 5.0
5 When Evening Comes - 58 68 -10 0.0 -
6 Miss Dora 72 58 62 -4 5.0 -
7 Chessade 35 36 58 -22 5.0 -
8 Scotty's Lass - - 55 -55 5.0 -
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