Official NHA Assessment

Race 6: MARION HIGH SCHOOL FM 75 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Desert Rose
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 10
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    Bingin Beach         3    59.5    1    0.00     9.0   75    72           75    +0
2    Dawnofanewday        3    61.0    2    0.25     9.0   78    75           75    -3
3    Desert Rose          3    59.0    3    1.55     9.0   74    74           74    +0
4    Trump My Queen       3    59.5    4    3.35     9.0   75    73           73    -2
5    Twiceasfast          5    53.5    5    3.95     0.0   67    79           79    +12
6    Angel Of Justice     3    59.5    6    5.65     9.0   75    72           72    -3
7    Alittlebitnaughty    4    56.5    7    6.05     7.0   68    70           70    +2
8    Siege Of Orleans     3    56.5    8    10.55    9.0   69    66           66    -3
9    Jackson Wells        5    57.5    9    14.55    0.0   78    86           86    +8
10   Alfonse Baby         5    58.0    10   14.60    0.0   71    87           87    +16
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bingin Beach 75 78 75 +3 9.0 -
2 Dawnofanewday 78 107 75 +32 9.0 -
3 Desert Rose Line 74 75 74 +1 9.0
4 Trump My Queen 75 64 73 -9 9.0 -
5 Twiceasfast 67 67 79 -12 0.0 -
6 Angel Of Justice 75 57 72 -15 9.0 -
7 Alittlebitnaughty 68 62 70 -8 7.0 -
8 Siege Of Orleans 69 52 66 -14 9.0 -
9 Jackson Wells 78 76 86 -10 0.0 -
10 Alfonse Baby 71 69 87 -18 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