Official NHA Assessment

Race 5: RACEHORSE OWNERS ASSOCIATION FM 66 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Chloris
Reference for assessment
Exact Matches
0 / 18
Calculated = Official
Close Matches
5 / 18
Within 2 points
Significant Diffs
6 / 18
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    Dancing Girl         4    57.5    1    0.00     0.5   61    58           61    +0
2    Louvain              6    57.0    2    2.00     0.0   60    61           61    +1
3    Crown Plaza          3    59.5    3    2.10     1.0   71    64           64    -7
4    Chloris              4    61.0    4    2.20     0.5   68    68           68    +0
5    Sarajevo             4    55.0    5    2.45     0.5   56    55           55    -1
6    Forward March        4    60.5    6    2.55     0.5   67    66           66    -1
7    Arion Of Adrast      3    57.5    7    2.80     1.0   64    59           59    -5
8    French Joy           3    57.5    8    3.30     1.0   64    58           58    -6
9    Grey Princess        6    57.0    9    3.35     0.0   60    59           59    -1
10   La Duchesse          6    58.5    10   4.60     0.0   63    61           61    -2
11   Miss Otis            3    60.5    11   5.85     1.0   70    63           63    -7
12   Under My Hat         3    56.0    12   7.10     1.0   61    54           54    -7
13   Tamil Tiger          4    58.0    13   7.20     0.5   62    59           59    -3
14   Miss Venezuela       4    59.5    14   7.95     0.5   65    62           62    -3
15   Flying Tessa         3    57.5    15   9.20     1.0   64    57           57    -7
99   Different Drum       3    55.5    99   0.00     1.0   -     53           53    +0
99   Meeneera             4    58.0    99   0.00     0.5   -     59           59    +0
99   Maiden's Cove        3    55.5    99   0.00     1.0   -     53           53    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dancing Girl 61 74 61 +13 0.5 -
2 Louvain 60 66 61 +5 0.0 -
3 Crown Plaza 71 58 64 -6 1.0 -
4 Chloris Line 68 73 68 +5 0.5
5 Sarajevo 56 63 55 +8 0.5 -
6 Forward March 67 62 66 -4 0.5 -
7 Arion Of Adrast 64 42 59 -17 1.0 -
8 French Joy 64 61 58 +3 1.0 -
9 Grey Princess 60 56 59 -3 0.0 -
10 La Duchesse 63 59 61 -2 0.0 -
11 Miss Otis 70 59 63 -4 1.0 -
12 Under My Hat 61 53 54 -1 1.0 -
13 Tamil Tiger 62 58 59 -1 0.5 -
14 Miss Venezuela 65 63 62 +1 0.5 -
15 Flying Tessa 64 59 57 +2 1.0 -
99 Different Drum - 47 53 -6 1.0 -
99 Meeneera - 52 59 -7 0.5 -
99 Maiden's Cove - 58 53 +5 1.0 -
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