Official NHA Assessment

Race 2: RACING TODAY MAIDEN PLATE (For all Maidens)

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Line Horse
Cliffie Clavin
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
3 / 9
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    Bright Future        3    60.0    1    0.00     8.5   63    58           58    -5
2    Stand Up             3    60.0    2    0.10     8.5   57    58           58    +1
3    Pibe De Oro          3    60.0    3    0.20     8.5   69    58           59    -10
4    Cliffie Clavin       3    60.0    4    1.95     8.5   61    61           61    +0
5    Dinero               4    60.0    5    3.20     6.0   45    65           65    +20
6    Grey Warrior         2    57.0    6    7.70     0.0   63    69           69    +6
7    Glimmer Of Light     3    54.0    7    9.70     8.5   -     46           46    +46
8    Monocle              3    57.5    8    11.95    8.5   56    53           53    -3
9    Explosive Gift       3    57.0    9    15.20    8.5   61    52           52    -9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bright Future 63 60 58 +2 8.5 -
2 Stand Up 57 62 58 +4 8.5 -
3 Pibe De Oro 69 66 59 +7 8.5 -
4 Cliffie Clavin Line 61 57 61 -4 8.5
5 Dinero 45 51 65 -14 6.0 -
6 Grey Warrior 63 70 69 +1 0.0 -
7 Glimmer Of Light - 58 46 +12 8.5 -
8 Monocle 56 52 53 -1 8.5 -
9 Explosive Gift 61 56 52 +4 8.5 -
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