Official NHA Assessment

Race 5: 4RACING.TV MAIDEN PLATE (For all Maidens)

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Line Horse
Broadway
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 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    Midnight Crystal     2    56.0    1    0.00     0.0   70    56           56    -14
2    Ngokushesha          3    59.0    2    5.25     6.0   66    50           56    -10
3    Big Five             3    60.0    3    5.75     6.0   56    52           52    -4
4    American Star        3    59.0    4    5.85     6.0   -     50           50    +50
5    Broadway             4    58.5    5    7.10     3.0   55    55           55    +0
6    Labrausco            2    59.0    6    7.35     0.0   51    62           62    +11
7    Positive Attitude    6    60.0    7    8.10     0.0   65    64           64    -1
8    Just Proccie         2    59.0    8    11.10    0.0   69    62           62    -7
99   Circus Lights        5    59.0    99   0.00     0.0   -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Midnight Crystal 70 66 56 +10 0.0 -
2 Ngokushesha 66 69 56 +13 6.0 -
3 Big Five 56 53 52 +1 6.0 -
4 American Star - 83 50 +33 6.0 -
5 Broadway Line 55 59 55 +4 3.0
6 Labrausco 51 70 62 +8 0.0 -
7 Positive Attitude 65 90 64 +26 0.0 -
8 Just Proccie 69 67 62 +5 0.0 -
99 Circus Lights - 64 62 +2 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