Official NHA Assessment

Race 7: COMPUTAFORM ONLINE PINNACLE STAKES (For all horses)

Line Horse
What A Winner
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
10 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Evies First          7    56.5    1    0.00     0.0   90    91           91    +1
2    What A Winner        10   59.5    2    2.00     0.0   97    97           97    +0
3    Stranger Danger      4    58.5    3    3.00     5.0   103   85           93    -10
4    Al Qaasim            4    55.0    4    4.25     5.0   85    78           78    -7
5    Regimental           5    61.0    5    5.50     0.0   101   100          100   -1
6    Green Light Gal      4    57.0    6    7.75     5.0   96    82           86    -10
7    Undisclosed          5    53.5    7    8.25     0.0   78    85           85    +7
8    Foreign Source       5    59.5    8    8.35     0.0   98    97           97    -1
9    Big Bay              5    60.5    9    8.45     0.0   107   99           99    -8
10   Varsity Bourbon      6    53.5    10   9.45     0.0   79    85           85    +6
11   Williams Land        5    56.5    11   10.70    0.0   89    91           91    +2
12   Eva Eileen           5    55.5    12   10.95    0.0   95    89           89    -6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Evies First 90 100 91 +9 0.0 -
2 What A Winner Line 97 75 97 -22 0.0
3 Stranger Danger 103 93 93 ✓ Match 5.0 -
4 Al Qaasim 85 91 78 +13 5.0 -
5 Regimental 101 85 100 -15 0.0 -
6 Green Light Gal 96 93 86 +7 5.0 -
7 Undisclosed 78 62 85 -23 0.0 -
8 Foreign Source 98 81 97 -16 0.0 -
9 Big Bay 107 97 99 -2 0.0 -
10 Varsity Bourbon 79 74 85 -11 0.0 -
11 Williams Land 89 85 91 -6 0.0 -
12 Eva Eileen 95 95 89 +6 0.0 -
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