Official NHA Assessment

Race 4: RADISSON BLU, DURBAN UMHLANGA MAIDEN JUVENILE PLATE (For 2 yo R100 000 Win BSA / RCS Bonus)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
0 / 12
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    Coast Of The Sun     2    58.5    1    0.00     0.0   -     -            -     +0
2    Benny And Paul       2    60.0    2    0.80     0.0   -     -            -     +0
3    Navigation           2    60.0    3    2.10     0.0   -     -            -     +0
4    Impressive           2    57.0    4    2.90     0.0   -     -            -     +0
5    Trip To Venus        2    57.5    5    5.00     0.0   -     -            -     +0
6    Scott'S Bar          2    60.0    6    5.50     0.0   -     -            -     +0
7    Captain Josh         2    60.0    7    6.40     0.0   -     -            -     +0
8    Anatoly              2    60.0    8    7.40     0.0   -     -            -     +0
9    Silver Comet         2    60.0    9    7.45     0.0   -     -            -     +0
10   Kaz From Alcatraz    2    60.0    10   7.85     0.0   -     -            -     +0
11   Russian Fort         2    60.0    11   9.25     0.0   -     -            -     +0
12   Golden Ratio         2    60.0    12   10.05    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 Coast Of The Sun - - - - 0.0 -
2 Benny And Paul - - - - 0.0 -
3 Navigation - - - - 0.0 -
4 Impressive - - - - 0.0 -
5 Trip To Venus - - - - 0.0 -
6 Scott'S Bar - - - - 0.0 -
7 Captain Josh - - - - 0.0 -
8 Anatoly - - - - 0.0 -
9 Silver Comet - - - - 0.0 -
10 Kaz From Alcatraz - - - - 0.0 -
11 Russian Fort - - - - 0.0 -
12 Golden Ratio - - - - 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