Official NHA Assessment

Race 7: GREYVILLE CONVENTION CENTRE MR 66 HANDICAP (Open)

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Line Horse
Cool Runnings
Reference for assessment
Exact Matches
2 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
4 / 12
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              5    57.5    1    0.00     0.0   64    61           64    +0
2    Techno Savvy         4    56.5    2    0.40     1.0   59    62           62    +3
3    Cool Runnings        4    56.0    3    2.50     1.0   58    58           58    +0
4    Cafe Pacifica        4    53.0    4    3.20     1.0   52    52           52    +0
5    Fever                5    56.5    5    3.25     0.0   59    61           61    +2
6    Admiral Birnham      3    61.5    6    3.30     2.5   74    65           65    -9
7    Sonjador             5    56.5    7    3.60     0.0   62    60           60    -2
8    What A Blast         6    56.0    8    4.80     0.0   58    58           58    +0
9    Ancient State        5    52.0    9    5.70     0.0   50    50           50    +0
10   Ciro                 4    55.0    10   6.90     1.0   59    54           54    -5
11   Eventidor            6    60.0    11   6.95     0.0   71    66           66    -5
12   Head Gardener        3    58.5    12   7.75     2.5   68    58           58    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Stanley 64 67 64 +3 0.0 -
2 Techno Savvy 59 62 62 ✓ Match 1.0 -
3 Cool Runnings Line 58 60 58 +2 1.0
4 Cafe Pacifica 52 51 52 -1 1.0 -
5 Fever 59 52 61 -9 0.0 -
6 Admiral Birnham 74 68 65 +3 2.5 -
7 Sonjador 62 51 60 -9 0.0 -
8 What A Blast 58 53 58 -5 0.0 -
9 Ancient State 50 50 50 ✓ Match 0.0 -
10 Ciro 59 50 54 -4 1.0 -
11 Eventidor 71 89 66 +23 0.0 -
12 Head Gardener 68 66 58 +8 2.5 -
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