Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

Back to Race
Line Horse
Si Gioca
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    Whataball            2    59.0    1    0.00     5.0   62    70           68    +6
2    Si Gioca             2    59.0    2    0.05     5.0   70    70           70    +0
3    Best Intentions      2    59.0    3    2.80     5.0   70    70           70    +0
4    Tune Again           6    60.0    4    5.05     0.0   40    82           82    +42
5    Bella Attrice        2    59.0    5    5.55     5.0   67    70           70    +3
6    Rosa Rossa           2    59.0    6    7.80     5.0   -     70           70    +70
7    Fuel The Frenzy      4    60.0    7    8.05     9.0   34    64           64    +30
8    Spring In Her Step   3    59.0    8    9.05     7.5   -     65           65    +65
9    Heartlight           2    60.0    9    15.55    5.0   54    72           72    +18
99   Ponte Vecchio        2    60.0    99   0.00     5.0   -     72           72    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Whataball 62 61 68 -7 5.0 -
2 Si Gioca Line 70 62 70 -8 5.0
3 Best Intentions 70 67 70 -3 5.0 -
4 Tune Again 40 50 82 -32 0.0 -
5 Bella Attrice 67 66 70 -4 5.0 -
6 Rosa Rossa - 61 70 -9 5.0 -
7 Fuel The Frenzy 34 34 64 -30 9.0 -
8 Spring In Her Step - 45 65 -20 7.5 -
9 Heartlight 54 48 72 -24 5.0 -
99 Ponte Vecchio - 56 72 -16 5.0 -
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