Official NHA Assessment

Race 4: RACING TODAY MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
Perform
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 8
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    Cantfoolme           2    60.0    1    0.00     0.0   60    55           55    -5
2    Lady Of Tibet        2    56.0    2    0.05     0.0   -     47           47    +47
3    Kalikaa              3    60.0    3    6.00     1.0   65    53           55    -10
4    Rainbow River        3    57.5    4    6.25     1.0   70    48           60    -10
5    Perform              2    60.0    5    6.50     0.0   55    55           55    +0
6    Ambitious Lady       3    60.0    6    7.00     1.0   67    53           57    -10
7    Spirit In The Wind   4    56.0    7    15.50    0.5   59    46           49    -10
8    Quello Che           3    56.0    8    38.50    1.0   -     45           45    +45
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cantfoolme 60 51 55 -4 0.0 -
2 Lady Of Tibet - 79 47 +32 0.0 -
3 Kalikaa 65 63 55 +8 1.0 -
4 Rainbow River 70 66 60 +6 1.0 -
5 Perform Line 55 54 55 -1 0.0
6 Ambitious Lady 67 62 57 +5 1.0 -
7 Spirit In The Wind 59 60 49 +11 0.5 -
8 Quello Che - 61 45 +16 1.0 -
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