Official NHA Assessment

Race 6: RACEHORSE OWNERS ASSOCIATION FM 73 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Mayfern
Reference for assessment
Exact Matches
0 / 17
Calculated = Official
Close Matches
6 / 17
Within 2 points
Significant Diffs
10 / 17
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    Anatura              5    57.0    1    0.00     0.0   67    66           67    +0
2    Ancestral Prayer     4    60.0    2    0.25     0.5   73    71           71    -2
3    Mayfern              5    52.0    3    1.00     0.0   60    60           60    +0
4    Alaskan Fate         5    58.0    4    1.05     0.0   69    72           72    +3
5    Meeneera             4    55.0    5    1.55     0.5   62    64           64    +2
6    Wintertime           5    52.0    6    2.05     0.0   57    59           59    +2
7    Absolutely Fab       4    53.0    7    2.80     0.5   58    59           59    +1
8    Do Si Do             3    57.0    8    2.90     1.0   69    66           66    -3
9    Kayc Al              4    60.0    9    3.00     0.5   73    73           73    +0
10   To The Max           5    59.0    10   3.25     0.0   71    72           72    +1
11   Rose Of Bayeux       3    55.5    11   3.30     1.0   66    62           62    -4
12   Mistress Of Means    5    54.5    12   5.05     0.0   62    61           61    -1
13   Masters Queen        3    57.5    13   7.30     1.0   70    65           65    -5
14   Miss Millstream      5    57.5    14   8.05     0.0   71    67           67    -4
15   Song                 4    58.0    15   10.30    0.5   68    67           67    -1
16   Strada Statale       5    56.5    16   12.55    0.0   66    65           65    -1
99   With Our Blessing    4    52.0    99   0.00     0.5   -     55           55    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Anatura 67 68 67 +1 0.0 -
2 Ancestral Prayer 73 79 71 +8 0.5 -
3 Mayfern Line 60 59 60 -1 0.0
4 Alaskan Fate 69 66 72 -6 0.0 -
5 Meeneera 62 52 64 -12 0.5 -
6 Wintertime 57 45 59 -14 0.0 -
7 Absolutely Fab 58 51 59 -8 0.5 -
8 Do Si Do 69 65 66 -1 1.0 -
9 Kayc Al 73 71 73 -2 0.5 -
10 To The Max 71 64 72 -8 0.0 -
11 Rose Of Bayeux 66 77 62 +15 1.0 -
12 Mistress Of Means 62 59 61 -2 0.0 -
13 Masters Queen 70 56 65 -9 1.0 -
14 Miss Millstream 71 63 67 -4 0.0 -
15 Song 68 68 67 +1 0.5 -
16 Strada Statale 66 57 65 -8 0.0 -
99 With Our Blessing - 41 55 -14 0.5 -
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