Official NHA Assessment

Race 1: HOLLYWOODBETS KENILWORTH WELCOMES YOU WORK RIDERS' MAIDEN PLATE (For all Maidens)

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Line Horse
Dontstopbelievin'
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 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    Rougarouin           4    62.0    1    0.00     5.0   66    64           64    -2
2    Noon Day Gun         4    62.0    2    1.25     5.0   80    64           70    -10
3    Rogue Male           3    62.0    3    3.25     4.5   53    65           65    +12
4    Dontstopbelievin'    3    62.0    4    5.50     4.5   65    65           65    +0
5    Black Hole Sun       4    59.5    5    5.70     5.0   46    59           59    +13
6    United We Stand      3    59.5    6    6.00     4.5   65    60           60    -5
7    Mo Ridge             3    62.0    7    17.25    4.5   -     65           65    +65
8    Three Coins          2    59.5    8    99.97    3.0   75    63           65    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rougarouin 66 69 64 +5 5.0 -
2 Noon Day Gun 80 66 70 -4 5.0 -
3 Rogue Male 53 50 65 -15 4.5 -
4 Dontstopbelievin' Line 65 63 65 -2 4.5
5 Black Hole Sun 46 53 59 -6 5.0 -
6 United We Stand 65 50 60 -10 4.5 -
7 Mo Ridge - 57 65 -8 4.5 -
8 Three Coins 75 76 65 +11 3.0 -
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