Official NHA Assessment

Race 6: IRRIDESCENCE STAKES (Listed) (For 2 yof R100 000 Win CRS Bonus)

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Line Horse
None identified
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
1 / 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    Ukuduma              2    60.0    1    0.00     0.0   -     -            -     +0
2    Electromagnetism     2    60.0    2    0.05     0.0   -     -            -     +0
3    She's My World       2    60.0    3    1.80     0.0   -     -            -     +0
4    Lowveld Lily         2    60.0    4    4.80     0.0   -     -            -     +0
5    Take It As Red       2    60.0    5    5.00     0.0   -     -            -     +0
6    Mrs Claus            2    60.0    6    7.75     0.0   -     -            -     +0
7    Paralegal            2    60.0    7    8.05     0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ukuduma - 91 - +91 0.0 -
2 Electromagnetism - 94 - +94 0.0 -
3 She's My World - 106 - +106 0.0 -
4 Lowveld Lily - 109 - +109 0.0 -
5 Take It As Red - 69 - +69 0.0 -
6 Mrs Claus - - - ✓ Match 0.0 -
7 Paralegal - 69 - +69 0.0 -
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