Official NHA Assessment

Race 1: JOIN THE PASSION! www.racecoast.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Good Omen
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
6 / 9
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    Best Of All          3    60.0    1    0.00     4.5   -     76           6     +6
2    Good Omen            2    58.5    2    5.00     3.0   76    76           76    +0
3    Sail The Horizon     3    60.0    3    6.50     4.5   -     76           76    +76
4    Frostbite            3    60.0    4    10.60    4.5   -     76           76    +76
5    Captain T            3    56.0    5    14.10    4.5   52    68           68    +16
6    Place Of Practice    3    60.0    6    15.70    4.5   85    76           76    -9
7    Tickey Box           3    57.5    7    18.50    4.5   -     71           71    +71
8    Catrien              3    57.5    8    19.90    4.5   65    71           71    +6
99   Thurloe Place        3    60.0    99   0.00     4.5   -     76           76    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Best Of All - 88 6 +82 4.5 -
2 Good Omen Line 76 74 76 -2 3.0
3 Sail The Horizon - 75 76 -1 4.5 -
4 Frostbite - 78 76 +2 4.5 -
5 Captain T 52 57 68 -11 4.5 -
6 Place Of Practice 85 82 76 +6 4.5 -
7 Tickey Box - - 71 -71 4.5 -
8 Catrien 65 60 71 -11 4.5 -
99 Thurloe Place - 70 76 -6 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