Official NHA Assessment

Race 3: RACING240 FOR RACING. FOR YOU MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Impersonation
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
8 / 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    Keep The Fort        3    60.0    1    0.00     3.5   72    64           64    -8
2    Antananarivo         4    60.0    2    0.75     1.5   47    74           74    +27
3    Impersonation        3    60.0    3    5.25     3.5   64    64           64    +0
4    Turnthebeataround    3    60.0    4    5.75     3.5   77    64           67    -10
5    Spring Of Elixir     3    60.0    5    6.25     3.5   64    64           64    +0
6    Coffee In Brazil     3    60.0    6    8.50     3.5   56    64           64    +8
7    Queen Britanna       2    60.0    7    8.55     0.0   65    71           71    +6
8    Alabama Storm        2    60.0    8    15.50    0.0   55    71           71    +16
9    Quito                4    60.0    9    27.00    1.5   42    68           68    +26
10   Dusky Rose           3    60.0    10   99.99    3.5   60    64           64    +4
11   Broadlands           3    60.0    11   99.99    3.5   69    64           64    -5
99   Flight De Grace      5    60.0    99   0.00     0.0   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Keep The Fort 72 66 64 +2 3.5 -
2 Antananarivo 47 57 74 -17 1.5 -
3 Impersonation Line 64 68 64 +4 3.5
4 Turnthebeataround 77 64 67 -3 3.5 -
5 Spring Of Elixir 64 55 64 -9 3.5 -
6 Coffee In Brazil 56 49 64 -15 3.5 -
7 Queen Britanna 65 57 71 -14 0.0 -
8 Alabama Storm 55 47 71 -24 0.0 -
9 Quito 42 38 68 -30 1.5 -
10 Dusky Rose 60 58 64 -6 3.5 -
11 Broadlands 69 69 64 +5 3.5 -
99 Flight De Grace - 45 71 -26 0.0 -
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