Official NHA Assessment

Race 1: WELCOME TO ALLIED STEELRODE CHARITY MILE MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
Roaming Spirit
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
8 / 11
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    Fastnet Filly (IRE)  5    60.0    1    0.00     0.0   67    17           17    -50
2    Roaming Spirit       3    59.0    2    2.25     7.5   -     -            -     +0
3    My One And Only      3    57.5    3    5.50     7.5   -     -3           -     +0
4    Lady Bomber          3    59.0    4    6.25     7.5   -     -            -     +0
5    Gregarious           3    59.0    5    9.25     7.5   -     -            -     +0
6    Izanami              3    59.0    6    9.50     7.5   -     -            -     +0
7    Lady Sabrina         3    59.0    7    11.25    7.5   -     -            -     +0
8    Panthera Uncia       3    56.5    8    13.25    7.5   80    -5           70    -10
99   Gerbera              3    59.0    99   0.00     7.5   -     -            -     +0
99   Faithful Mistress    3    59.0    99   0.00     7.5   -     -            -     +0
99   Desert Cloud         3    59.0    99   0.00     7.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Fastnet Filly (IRE) 67 94 17 +77 0.0 -
2 Roaming Spirit Line - 87 - +87 7.5
3 My One And Only - 82 - +82 7.5 -
4 Lady Bomber - 87 - +87 7.5 -
5 Gregarious - 83 - +83 7.5 -
6 Izanami - 72 - +72 7.5 -
7 Lady Sabrina - 82 - +82 7.5 -
8 Panthera Uncia 80 60 70 -10 7.5 -
99 Gerbera - 98 - - 7.5 -
99 Faithful Mistress - 70 - - 7.5 -
99 Desert Cloud - 78 - - 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