Official NHA Assessment

Race 7: GREYVILLE CONVENTION CENTRE CLASS 5 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 66)

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Line Horse
Miss Paget
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
7 / 11
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    Copacabana           4    56.0    1    0.00     0.5   58    63           63    +5
2    Miss Paget           4    58.5    2    1.70     0.5   71    71           71    +0
3    My True Love         4    55.0    3    1.85     0.5   56    64           64    +8
4    Long Street          4    54.0    4    2.00     0.5   62    62           62    +0
5    Amafort              3    60.5    5    5.40     1.0   70    71           71    +1
6    Flying Reign Storm   3    59.0    6    5.50     1.0   64    68           68    +4
7    Noodsberg            3    61.5    7    5.55     1.0   72    73           73    +1
8    Elusive Belle        4    52.5    8    6.05     0.5   51    56           56    +5
9    Drive By             6    62.0    9    6.55     0.0   70    76           76    +6
10   Sky Velocity         5    58.5    10   7.95     0.0   63    69           69    +6
11   Pink Diamond         6    57.0    11   8.25     0.0   60    66           66    +6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Copacabana 58 74 63 +11 0.5 -
2 Miss Paget Line 71 71 71 ✓ Match 0.5
3 My True Love 56 50 64 -14 0.5 -
4 Long Street 62 62 62 ✓ Match 0.5 -
5 Amafort 70 61 71 -10 1.0 -
6 Flying Reign Storm 64 65 68 -3 1.0 -
7 Noodsberg 72 67 73 -6 1.0 -
8 Elusive Belle 51 51 56 -5 0.5 -
9 Drive By 70 68 76 -8 0.0 -
10 Sky Velocity 63 57 69 -12 0.0 -
11 Pink Diamond 60 60 66 -6 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