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
Miss Prior
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
9 / 9
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    Pink Moon            4    60.0    1    0.00     7.0   73    73           70    -3
2    Tune Again           6    60.0    2    1.25     0.0   53    87           87    +34
3    Miss Prior           3    60.0    3    2.75     6.0   75    75           75    +0
4    Lady Theia           2    60.0    4    7.00     4.0   56    79           79    +23
5    Ruby Claire          3    60.0    5    7.10     6.0   70    75           75    +5
6    Trillion Dreams      5    60.0    6    10.35    0.0   -     87           87    +87
7    Sydney's Horizon     3    60.0    7    11.10    6.0   -     75           75    +75
8    Feel The Wind        2    60.0    8    16.60    4.0   67    79           79    +12
99   Springsteen          3    60.0    99   0.00     6.0   -     75           75    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pink Moon 73 54 70 -16 7.0 -
2 Tune Again 53 50 87 -37 0.0 -
3 Miss Prior Line 75 61 75 -14 6.0
4 Lady Theia 56 53 79 -26 4.0 -
5 Ruby Claire 70 52 75 -23 6.0 -
6 Trillion Dreams - 45 87 -42 0.0 -
7 Sydney's Horizon - 53 75 -22 6.0 -
8 Feel The Wind 67 67 79 -12 4.0 -
99 Springsteen - 62 75 -13 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