Official NHA Assessment

Race 2: RACING240 FOR RACING. FOR YOU MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Rio Supremo
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
4 / 8
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    Angel Deb's          3    60.0    1    0.00     2.0   -     58           6     +6
2    Rhythm Of The Rain   3    60.0    2    0.25     2.0   76    58           66    -10
3    Rio Supremo          3    60.0    3    5.00     2.0   58    58           58    +0
4    La Fille             3    58.5    4    6.25     2.0   67    55           57    -10
5    Klaserie             3    60.0    5    6.50     2.0   56    58           58    +2
6    Magenta              4    60.0    6    6.55     2.5   42    57           57    +15
7    Peronzada            3    60.0    7    9.05     2.0   36    58           58    +22
8    Captain's Flower     3    60.0    8    26.55    2.0   59    58           58    -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Angel Deb's - 78 6 +72 2.0 -
2 Rhythm Of The Rain 76 70 66 +4 2.0 -
3 Rio Supremo Line 58 52 58 -6 2.0
4 La Fille 67 63 57 +6 2.0 -
5 Klaserie 56 57 58 -1 2.0 -
6 Magenta 42 59 57 +2 2.5 -
7 Peronzada 36 56 58 -2 2.0 -
8 Captain's Flower 59 39 58 -19 2.0 -
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