Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
Powers That Be
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
5 / 12
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    Batik                3    57.5    1    0.00     3.0   57    55           55    -2
2    Radu                 5    57.5    2    1.20     0.0   -     65           65    +65
3    Powers That Be       2    60.0    3    1.40     0.0   69    69           69    +0
4    Writteninthesand     3    60.0    4    2.50     3.0   66    62           62    -4
5    Convocation          5    60.0    5    4.00     0.0   -     67           67    +67
6    A Touch Of Sugar     2    60.0    6    4.25     0.0   68    67           67    -1
7    Maith An Cailin      2    58.5    7    5.25     0.0   62    63           63    +1
99   Wild Willow          3    58.5    99   0.00     3.0   -     57           57    +0
99   Count Your Chances   5    60.0    99   0.00     0.0   -     66           66    +0
99   Aunt Pittypat        3    60.0    99   0.00     3.0   -     60           60    +0
99   Fizzante             3    60.0    99   0.00     3.0   -     60           60    +0
99   Turnthebeataround    3    60.0    99   0.00     3.0   -     60           60    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Batik 57 57 55 +2 3.0 -
2 Radu - 64 65 -1 0.0 -
3 Powers That Be Line 69 67 69 -2 0.0
4 Writteninthesand 66 57 62 -5 3.0 -
5 Convocation - 94 67 +27 0.0 -
6 A Touch Of Sugar 68 58 67 -9 0.0 -
7 Maith An Cailin 62 68 63 +5 0.0 -
99 Wild Willow - 38 57 -19 3.0 -
99 Count Your Chances - 51 66 -15 0.0 -
99 Aunt Pittypat - 65 60 +5 3.0 -
99 Fizzante - - 60 -60 3.0 -
99 Turnthebeataround - 64 60 +4 3.0 -
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