Official NHA Assessment

Race 7: TOTE - SPEED. POWER. GLORY CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 82)

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Line Horse
Are You Sure
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
7 / 10
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    Qhawekazi            3    57.0    1    0.00     8.5   76    70           70    -6
2    Purple Flower        3    51.5    2    0.50     8.5   73    59           63    -10
3    Are You Sure         2    56.5    3    0.80     5.5   75    75           75    +0
4    Icy Lancaster        3    57.5    4    2.10     8.5   77    71           71    -6
5    Ilha Da Orange       4    57.0    5    5.40     10.0  76    67           67    -9
6    Blowin In The Wind   3    55.5    6    6.20     8.5   73    67           67    -6
7    School Policy        2    61.0    7    6.60     5.5   84    84           84    +0
8    Gorgeous Cape        2    54.0    8    7.60     5.5   81    70           71    -10
9    Fascination          2    50.5    9    9.00     5.5   82    63           72    -10
10   Emerald Green        4    58.0    10   16.00    10.0  78    69           69    -9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Qhawekazi 76 78 70 +8 8.5 -
2 Purple Flower 73 74 63 +11 8.5 -
3 Are You Sure Line 75 64 75 -11 5.5
4 Icy Lancaster 77 76 71 +5 8.5 -
5 Ilha Da Orange 76 75 67 +8 10.0 -
6 Blowin In The Wind 73 63 67 -4 8.5 -
7 School Policy 84 79 84 -5 5.5 -
8 Gorgeous Cape 81 80 71 +9 5.5 -
9 Fascination 82 79 72 +7 5.5 -
10 Emerald Green 78 75 69 +6 10.0 -
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