Official NHA Assessment

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

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Line Horse
Tune Again
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
1 / 14
Within 2 points
Significant Diffs
11 / 14
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    Walkonthewildside    3    59.0    1    0.00     7.5   -     36           6     +6
2    Her Royalty          3    59.0    2    0.75     7.5   79    36           69    -10
3    Alado's Habit        3    59.0    3    1.25     7.5   -     36           36    +36
4    Tune Again           6    60.0    4    2.50     0.0   53    53           53    +0
5    Choc' Late           3    60.0    5    2.55     7.5   50    38           40    -10
6    Serendipitous        3    59.0    6    3.80     7.5   75    36           65    -10
7    Alpine Diamond       3    59.0    7    6.05     7.5   48    36           38    -10
8    Dirty Mimosa         2    59.0    8    6.15     5.0   56    41           46    -10
9    Shout At The Moon    3    60.0    9    6.90     7.5   45    38           38    -7
10   Chloe's Dancer       3    59.0    10   8.65     7.5   -     36           36    +36
11   Hat Montera          3    59.0    11   9.40     7.5   -     36           36    +36
12   Regina Lou           3    59.0    12   12.65    7.5   -     36           36    +36
13   Big Spender          3    60.0    13   15.90    7.5   30    38           38    +8
14   Palace Of Justice    3    59.0    14   21.40    7.5   -     36           36    +36
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Walkonthewildside - 84 6 +78 7.5 -
2 Her Royalty 79 68 69 -1 7.5 -
3 Alado's Habit - 68 36 +32 7.5 -
4 Tune Again Line 53 50 53 -3 0.0
5 Choc' Late 50 56 40 +16 7.5 -
6 Serendipitous 75 60 65 -5 7.5 -
7 Alpine Diamond 48 56 38 +18 7.5 -
8 Dirty Mimosa 56 56 46 +10 5.0 -
9 Shout At The Moon 45 45 38 +7 7.5 -
10 Chloe's Dancer - 56 36 +20 7.5 -
11 Hat Montera - 81 36 +45 7.5 -
12 Regina Lou - 54 36 +18 7.5 -
13 Big Spender 30 30 38 -8 7.5 -
14 Palace Of Justice - - 36 -36 7.5 -
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