Official NHA Assessment

Race 1: LIVE IT. LOVE IT. OWN IT. www.racecoast.co.za OPEN MAIDEN (For all Maidens)

Back to Race
Line Horse
Prins Jaspar
Reference for assessment
Exact Matches
2 / 7
Calculated = Official
Close Matches
4 / 7
Within 2 points
Significant Diffs
3 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    William Of Orange    2    54.0    1    0.00     2.0   63    63           63    +0
2    Owner Of Creation    3    56.0    2    0.25     3.0   63    65           65    +2
3    Prins Jaspar         2    60.0    3    3.25     2.0   75    75           75    +0
4    Donmagoo             3    50.0    4    4.25     3.0   63    53           53    -10
5    Imperial Valor       3    56.5    5    7.95     3.0   -     66           66    +66
6    Sybilla              3    58.0    6    34.05    3.0   -     69           69    +69
99   Winter Miracle       3    53.0    99   0.00     3.0   -     59           59    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 William Of Orange 63 63 63 ✓ Match 2.0 -
2 Owner Of Creation 63 63 65 -2 3.0 -
3 Prins Jaspar Line 75 75 75 ✓ Match 2.0
4 Donmagoo 63 63 53 +10 3.0 -
5 Imperial Valor - - 66 -66 3.0 -
6 Sybilla - - 69 -69 3.0 -
99 Winter Miracle - 60 59 +1 3.0 -
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