Official NHA Assessment

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

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Line Horse
Old Fashioned
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
6 / 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    Pivotal Role         3    59.0    1    0.00     8.5   -     65           6     +6
2    Old Fashioned        3    60.0    2    3.00     8.5   67    67           67    +0
3    Winter Belle         2    52.5    3    7.60     5.5   75    58           65    -10
4    Ringho               4    60.0    4    7.80     10.0  62    64           64    +2
5    Bingo                2    59.0    5    10.30    5.5   82    71           72    -10
6    Rock Music           2    59.0    6    11.00    5.5   -     71           71    +71
7    Gold Platina         2    59.0    7    13.25    5.5   63    71           71    +8
99   In The Willows       2    59.0    99   0.00     5.5   -     71           71    +0
99   District Attorney    3    59.0    99   0.00     8.5   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pivotal Role - 87 6 +81 8.5 -
2 Old Fashioned Line 67 76 67 +9 8.5
3 Winter Belle 75 70 65 +5 5.5 -
4 Ringho 62 60 64 -4 10.0 -
5 Bingo 82 81 72 +9 5.5 -
6 Rock Music - 75 71 +4 5.5 -
7 Gold Platina 63 58 71 -13 5.5 -
99 In The Willows - 54 71 -17 5.5 -
99 District Attorney - 74 65 +9 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