Official NHA Assessment

Race 7: NORMANDY RACING SYNDICATE CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 80)

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Line Horse
Great Cat
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
2 / 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    Go Like Flo          5    61.0    1    0.00     0.0   82    80           80    -2
2    Polynomial           3    56.0    2    0.20     8.0   88    54           78    -10
3    Great Cat            5    60.5    3    2.95     0.0   81    81           81    +0
4    Jou Lekker Ding      3    54.5    4    3.95     8.0   85    52           75    -10
5    In The Green Zone    3    57.0    5    6.20     8.0   90    56           80    -10
6    Grandiosa            2    57.5    6    7.20     0.0   76    73           73    -3
7    Maritzburg Memory    2    55.0    7    7.50     0.0   86    68           76    -10
8    Elizabeth Grace      2    55.5    8    12.50    0.0   87    69           77    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Go Like Flo 82 85 80 +5 0.0 -
2 Polynomial 88 79 78 +1 8.0 -
3 Great Cat Line 81 82 81 +1 0.0
4 Jou Lekker Ding 85 80 75 +5 8.0 -
5 In The Green Zone 90 76 80 -4 8.0 -
6 Grandiosa 76 80 73 +7 0.0 -
7 Maritzburg Memory 86 74 76 -2 0.0 -
8 Elizabeth Grace 87 87 77 +10 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