Official NHA Assessment

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

Back to Race
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
10 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Twenty One May       3    60.0    1    0.00     2.5   -     -            -     +0
2    Bjorn Ironside       2    60.0    2    0.40     1.5   -     -            -     +0
3    Barry Du Grond       3    60.0    3    4.50     2.5   -     -            -     +0
4    Littleblackgem       3    56.0    4    5.10     2.5   -     -            -     +0
5    Top Gun              3    60.0    5    5.15     2.5   -     -            -     +0
6    Komandante           2    60.0    6    5.65     1.5   -     -            -     +0
7    Visionary Dreamer    3    60.0    7    9.85     2.5   -     -            -     +0
8    Super Casanova       2    60.0    8    10.10    1.5   -     -            -     +0
9    Salt 'N Peppa        2    60.0    9    11.20    1.5   -     -            -     +0
10   Act Of Genius        2    60.0    10   11.60    1.5   -     -            -     +0
99   Galactus             3    60.0    99   0.00     2.5   -     -            -     +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Twenty One May - 91 - +91 2.5 -
2 Bjorn Ironside - 105 - +105 1.5 -
3 Barry Du Grond - 67 - +67 2.5 -
4 Littleblackgem - 61 - +61 2.5 -
5 Top Gun - 71 - +71 2.5 -
6 Komandante - 74 - +74 1.5 -
7 Visionary Dreamer - 57 - +57 2.5 -
8 Super Casanova - 60 - +60 1.5 -
9 Salt 'N Peppa - 87 - +87 1.5 -
10 Act Of Genius - 65 - +65 1.5 -
99 Galactus - 64 - - 2.5 -
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