Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING THURSDAY 31 OCTOBER MIDDLE STAKES (For horses with nett rating of 105 and below)

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Line Horse
Esquevelle
Reference for assessment
Exact Matches
2 / 13
Calculated = Official
Close Matches
3 / 13
Within 2 points
Significant Diffs
8 / 13
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    Bob's Your Uncle     5    48.0    1    0.00     0.0   85    91           91    +6
2    Rollwiththepunches   6    53.5    2    0.50     0.0   90    102          102   +12
3    After The Rain       4    60.0    3    1.50     10.0  98    95           95    -3
4    Paisley Park         4    58.0    4    1.75     10.0  94    91           91    -3
5    Esquevelle           3    56.0    5    2.25     8.5   90    90           90    +0
6    Richard The First    2    58.0    6    2.50     5.5   96    100          100   +4
7    Karate Kid           3    52.0    7    2.60     8.5   94    82           84    -10
8    Halberdier           4    54.0    8    4.00     10.0  88    83           83    -5
9    Rock Of Bismantova   3    52.0    9    5.25     8.5   85    82           82    -3
10   Cian The Conqueror   5    54.0    10   7.75     0.0   87    103          103   +16
11   Wyzeact              4    60.0    11   7.80     10.0  98    95           95    -3
12   Thunderstone         2    54.5    12   99.99    5.5   86    93           93    +7
99   Chasing Happiness    3    60.5    99   0.00     8.5   -     99           99    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bob's Your Uncle 85 103 91 +12 0.0 -
2 Rollwiththepunches 90 90 102 -12 0.0 -
3 After The Rain 98 98 95 +3 10.0 -
4 Paisley Park 94 91 91 ✓ Match 10.0 -
5 Esquevelle Line 90 86 90 -4 8.5
6 Richard The First 96 87 100 -13 5.5 -
7 Karate Kid 94 103 84 +19 8.5 -
8 Halberdier 88 83 83 ✓ Match 10.0 -
9 Rock Of Bismantova 85 80 82 -2 8.5 -
10 Cian The Conqueror 87 81 103 -22 0.0 -
11 Wyzeact 98 86 95 -9 10.0 -
12 Thunderstone 86 86 93 -7 5.5 -
99 Chasing Happiness - 110 99 +11 8.5 -
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