Official NHA Assessment

Race 1: BETWAY INSUREBET WORK RIDERS MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Solo Diva
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
8 / 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    Mount Etna           4    57.0    1    0.00     5.0   66    61           61    -5
2    Solo Diva            3    60.0    2    2.10     9.0   64    64           64    +0
3    All Rise             3    60.0    3    2.50     9.0   53    63           63    +10
4    Three Bells          3    60.0    4    7.25     9.0   45    59           59    +14
5    Dame Colleen         3    60.0    5    8.25     9.0   41    59           59    +18
6    Siracha              3    60.0    6    9.50     9.0   52    59           59    +7
7    Bomber Grigio        3    60.0    7    9.60     9.0   49    59           59    +10
8    Wild Willow          3    60.0    8    12.60    9.0   40    59           59    +19
9    Pasquale             3    57.0    9    23.50    9.0   -     53           53    +53
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mount Etna 66 79 61 +18 5.0 -
2 Solo Diva Line 64 65 64 +1 9.0
3 All Rise 53 50 63 -13 9.0 -
4 Three Bells 45 43 59 -16 9.0 -
5 Dame Colleen 41 46 59 -13 9.0 -
6 Siracha 52 48 59 -11 9.0 -
7 Bomber Grigio 49 42 59 -17 9.0 -
8 Wild Willow 40 38 59 -21 9.0 -
9 Pasquale - - 53 -53 9.0 -
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