Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Ringho
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 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    Just Jazzed Up       3    57.5    1    0.00     4.5   -     56           6     +6
2    Ringho               4    60.0    2    2.90     5.0   60    60           60    +0
3    Old Fashioned        3    60.0    3    3.20     4.5   76    61           66    -10
4    Pursuit Of Fame      2    60.0    4    3.50     3.0   64    64           64    +0
5    What A Predator      3    60.0    5    4.60     4.5   49    61           61    +12
6    Turf Guru            3    60.0    6    5.30     4.5   -     61           61    +61
7    Flying Predator      3    60.0    7    24.50    4.5   -     61           61    +61
8    Mo Express           3    60.0    8    30.00    4.5   -     61           61    +61
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Just Jazzed Up - 76 6 +70 4.5 -
2 Ringho Line 60 60 60 ✓ Match 5.0
3 Old Fashioned 76 76 66 +10 4.5 -
4 Pursuit Of Fame 64 71 64 +7 3.0 -
5 What A Predator 49 58 61 -3 4.5 -
6 Turf Guru - 65 61 +4 4.5 -
7 Flying Predator - 10 61 -51 4.5 -
8 Mo Express - - 61 -61 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