Official NHA Assessment

Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
Intro
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
10 / 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    Abbey's View         3    59.0    1    0.00     7.5   -     72           6     +6
2    Pretty Precious      3    60.0    2    0.15     7.5   70    74           74    +4
3    Intro                3    59.0    3    5.50     7.5   72    72           72    +0
4    Gimme A Storm        3    57.5    4    5.75     7.5   -     69           69    +69
5    Dragon Dragon        3    60.0    5    6.00     7.5   58    74           74    +16
6    Black Hole Sun       4    60.0    6    11.25    9.0   59    71           71    +12
7    Captains Clover      2    59.0    7    20.25    5.0   59    77           77    +18
8    Touch Of Heaven      3    59.0    8    23.25    7.5   -     72           72    +72
99   Magic Bank           2    60.0    99   0.00     5.0   -     79           79    +0
99   Marieskop            3    60.0    99   0.00     7.5   -     74           74    +0
99   Cyber Spirit         2    59.0    99   0.00     5.0   -     77           77    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Abbey's View - 79 6 +73 7.5 -
2 Pretty Precious 70 72 74 -2 7.5 -
3 Intro Line 72 66 72 -6 7.5
4 Gimme A Storm - 58 69 -11 7.5 -
5 Dragon Dragon 58 58 74 -16 7.5 -
6 Black Hole Sun 59 53 71 -18 9.0 -
7 Captains Clover 59 54 77 -23 5.0 -
8 Touch Of Heaven - 57 72 -15 7.5 -
99 Magic Bank - 42 79 -37 5.0 -
99 Marieskop - 50 74 -24 7.5 -
99 Cyber Spirit - 62 77 -15 5.0 -
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