Official NHA Assessment

Race 2: www.tabgold.co.za MAIDEN PLATE (3-year-olds) (For Maiden 3-year-olds)

Back to Race
Line Horse
Vibe Sa
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
8 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Kaygee's Delight     4    60.0    1    0.00     6.0   81    -12          -     -81
2    Vibe Sa              2    60.0    2    0.05     0.0   -     -            -     +0
3    Palace Revolt        2    60.0    3    0.10     0.0   -     -            -     +0
4    Andy Coogle          2    60.0    4    1.60     0.0   83    3            73    -10
5    Dynalley             2    60.0    5    3.50     0.0   86    1            76    -10
6    Northern Blue        2    60.0    6    5.30     0.0   -     -            -     +0
7    Ment To Fly          2    60.0    7    6.40     0.0   82    -            76    -6
8    General Byng         2    60.0    8    8.50     0.0   -     -            -     +0
9    Almond Butter        2    60.0    9    12.50    0.0   69    -            61    -8
99   Birthright           4    60.0    99   0.00     6.0   -     -12          -12   +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kaygee's Delight 81 89 - +89 6.0 -
2 Vibe Sa Line - 92 - +92 0.0
3 Palace Revolt - 64 - +64 0.0 -
4 Andy Coogle 83 83 73 +10 0.0 -
5 Dynalley 86 82 76 +6 0.0 -
6 Northern Blue - 75 - +75 0.0 -
7 Ment To Fly 82 73 76 -3 0.0 -
8 General Byng - 75 - +75 0.0 -
9 Almond Butter 69 65 61 +4 0.0 -
99 Birthright - 95 -12 +107 6.0 -
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