Official NHA Assessment

Race 4: Join the Passion. www.racecoast.co.za OPEN MAIDEN (F & M) (For all Maiden Fillies & Mares)

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Line Horse
Roy's Blossom
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
10 / 10
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    Overnight            3    58.5    1    0.00     6.0   -     -10          -     +0
2    Strutting            3    58.5    2    0.25     6.0   -     -10          -     +0
3    Praise De La Rey     2    52.5    3    2.95     0.0   50    -8           40    -10
4    Roy's Blossom        4    60.5    4    3.55     3.5   -     -            -     +0
5    La Katici            2    55.0    5    4.75     0.0   67    -5           57    -10
6    Dream Decision       3    55.5    6    6.15     6.0   56    -16          46    -10
7    Sol Nomara           2    50.0    7    6.65     0.0   60    -15          50    -10
8    Liwa's Flight        3    58.5    8    6.70     6.0   -     -10          -     +0
99   A M C Selvan         3    58.5    99   0.00     6.0   -     -10          -10   +0
99   Tickey Box           3    58.5    99   0.00     6.0   -     -10          -10   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Overnight - 79 - +79 6.0 -
2 Strutting - 79 - +79 6.0 -
3 Praise De La Rey 50 66 40 +26 0.0 -
4 Roy's Blossom Line - 54 - +54 3.5
5 La Katici 67 65 57 +8 0.0 -
6 Dream Decision 56 53 46 +7 6.0 -
7 Sol Nomara 60 58 50 +8 0.0 -
8 Liwa's Flight - 60 - +60 6.0 -
99 A M C Selvan - 10 -10 +20 6.0 -
99 Tickey Box - - -10 +10 6.0 -
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