Official NHA Assessment

Race 1: tabGOLD - THE INTELLIGENT BET! MAIDEN PLATE (For all Maidens)

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Line Horse
Stanley Park
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
5 / 10
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    Stanley Park         2    58.0    1    0.00     7.0   78    78           78    +0
2    Smith And Wesson     2    58.0    2    0.15     7.0   75    78           78    +3
3    Rock N Roll Girl     2    55.5    3    1.45     7.0   -     73           73    +73
4    Baazigar             3    58.0    4    2.35     10.5  -     71           71    +71
5    Double Silver        3    58.0    5    2.55     10.5  -     71           71    +71
6    Arbitrator           2    58.0    6    2.85     7.0   79    78           78    -1
7    Super Fast           5    58.0    7    3.45     0.0   -     92           92    +92
8    Paris Pike           2    55.5    8    5.55     7.0   -     73           73    +73
9    Sewelo               3    58.5    9    10.65    10.5  50    72           72    +22
10   Vickers Viscount     3    58.0    10   22.35    10.5  -     71           71    +71
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Stanley Park Line 78 69 78 -9 7.0
2 Smith And Wesson 75 73 78 -5 7.0 -
3 Rock N Roll Girl - 76 73 +3 7.0 -
4 Baazigar - 66 71 -5 10.5 -
5 Double Silver - 74 71 +3 10.5 -
6 Arbitrator 79 82 78 +4 7.0 -
7 Super Fast - 83 92 -9 0.0 -
8 Paris Pike - 83 73 +10 7.0 -
9 Sewelo 50 45 72 -27 10.5 -
10 Vickers Viscount - 31 71 -40 10.5 -
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