Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING FRIDAY 31 MARCH FM 85 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Carbonado
Reference for assessment
Exact Matches
0 / 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    Ancestral Prayer     4    56.0    1    0.00     1.5   77    75           77    +0
2    Pam's Princess       3    58.5    2    0.50     2.5   82    83           83    +1
3    Lady Mistico         2    55.5    3    0.55     0.0   82    82           82    +0
4    Carbonado            2    57.5    4    0.80     0.0   85    85           85    +0
5    Flame Flower         3    59.5    5    1.30     2.5   84    83           83    -1
6    Definitely Maybe     3    55.5    6    1.55     2.5   76    75           75    -1
7    Heartsease           3    57.0    7    1.65     2.5   79    78           78    -1
8    Chere For Me         5    57.0    8    2.40     0.0   85    82           82    -3
9    Rimaah               2    60.0    9    3.65     0.0   91    87           87    -4
10   Buttercup            3    53.5    10   6.40     2.5   72    68           68    -4
11   Dame Of Flames       3    55.0    11   6.90     2.5   74    71           71    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ancestral Prayer 77 79 77 +2 1.5 -
2 Pam's Princess 82 82 83 -1 2.5 -
3 Lady Mistico 82 75 82 -7 0.0 -
4 Carbonado Line 85 92 85 +7 0.0
5 Flame Flower 84 78 83 -5 2.5 -
6 Definitely Maybe 76 97 75 +22 2.5 -
7 Heartsease 79 73 78 -5 2.5 -
8 Chere For Me 85 70 82 -12 0.0 -
9 Rimaah 91 70 87 -17 0.0 -
10 Buttercup 72 57 68 -11 2.5 -
11 Dame Of Flames 74 95 71 +24 2.5 -
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