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
Variety Fair
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 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    Shipholia            5    59.0    1    0.00     0.0   -     80           6     +6
2    Variety Fair         2    59.0    2    1.40     5.5   69    69           69    +0
3    Miss Dora            3    59.0    3    1.90     8.5   -     63           63    +63
4    Trip To Nebraska     2    55.0    4    2.15     5.5   56    61           61    +5
5    Nonoti               2    57.5    5    3.95     5.5   59    66           66    +7
6    Declare War          3    60.0    6    6.85     8.5   52    65           65    +13
7    Eli's Bow            3    59.0    7    21.55    8.5   -     63           63    +63
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Shipholia - 104 6 +98 0.0 -
2 Variety Fair Line 69 63 69 -6 5.5
3 Miss Dora - 58 63 -5 8.5 -
4 Trip To Nebraska 56 55 61 -6 5.5 -
5 Nonoti 59 57 66 -9 5.5 -
6 Declare War 52 49 65 -16 8.5 -
7 Eli's Bow - - 63 -63 8.5 -
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