Official NHA Assessment

Race 1: WELCOME TO CAPE RACING MAIDEN PLATE (For all Maidens)

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Line Horse
Masterful Guy
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
9 / 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    Line Of Duty         3    60.0    1    0.00     4.5   -     73           6     +6
2    Masterful Guy        3    60.0    2    1.25     4.5   73    73           73    +0
3    Faire Advantage      3    60.0    3    1.35     4.5   -     73           73    +73
4    Global Movement      6    60.0    4    1.85     0.0   -     82           82    +82
5    Don Reposado         3    60.0    5    2.60     4.5   73    73           73    +0
6    Forever Bill         3    60.0    6    2.80     4.5   74    73           73    -1
7    Swift Action         3    60.0    7    2.85     4.5   -     73           73    +73
8    Bowled Over          3    60.0    8    3.60     4.5   -     73           73    +73
9    Western Wall         3    60.0    9    10.35    4.5   -     73           73    +73
10   Shadow River         3    60.0    10   25.85    4.5   -     73           73    +73
99   King Of Colts        3    60.0    99   0.00     4.5   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Line Of Duty - 75 6 +69 4.5 -
2 Masterful Guy Line 73 58 73 -15 4.5
3 Faire Advantage - 71 73 -2 4.5 -
4 Global Movement - 65 82 -17 0.0 -
5 Don Reposado 73 51 73 -22 4.5 -
6 Forever Bill 74 56 73 -17 4.5 -
7 Swift Action - 77 73 +4 4.5 -
8 Bowled Over - 64 73 -9 4.5 -
9 Western Wall - 51 73 -22 4.5 -
10 Shadow River - - 73 -73 4.5 -
99 King Of Colts - 33 73 -40 4.5 -
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