Official NHA Assessment

Race 4: RACING240 FOR RACING. FOR YOU MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Williamson
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
11 / 11
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    Knights Table        3    60.0    1    0.00     3.0   -     67           6     +6
2    Us Open              3    60.0    2    3.25     3.0   69    69           69    +0
3    Broadway             4    60.0    3    3.75     1.5   57    71           71    +14
4    Williamson           2    57.5    4    5.25     0.0   68    68           68    +0
5    Harold The Duke      3    60.0    5    5.30     3.0   58    67           67    +9
6    Godfather            2    60.0    6    7.50     0.0   69    73           73    +4
7    California Boy       3    60.0    7    14.50    3.0   61    67           67    +6
8    Justcruisinalong     3    60.0    8    15.00    3.0   -     67           67    +67
9    Kimbolton Castle     3    60.0    9    34.00    3.0   -     67           67    +67
10   San Marzano          3    60.0    10   35.50    3.0   -     67           67    +67
11   Rabobi               3    58.5    11   38.00    3.0   -     64           64    +64
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Knights Table - 73 6 +67 3.0 -
2 Us Open 69 60 69 -9 3.0 -
3 Broadway 57 59 71 -12 1.5 -
4 Williamson Line 68 62 68 -6 0.0
5 Harold The Duke 58 86 67 +19 3.0 -
6 Godfather 69 57 73 -16 0.0 -
7 California Boy 61 53 67 -14 3.0 -
8 Justcruisinalong - 45 67 -22 3.0 -
9 Kimbolton Castle - 48 67 -19 3.0 -
10 San Marzano - 53 67 -14 3.0 -
11 Rabobi - 10 64 -54 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