Official NHA Assessment

Race 5: PLAY SOCCER 6, 10 AND 13 MR 90 HANDICAP (Open)

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Line Horse
Forest Spy
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
3 / 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    Andy Coogle          2    54.5    1    0.00     4.0   79    79           79    +0
2    One Too Many         3    55.5    2    0.50     6.0   81    77           77    -4
3    Forest Spy           2    59.0    3    0.75     4.0   88    88           88    +0
4    Champonelle          4    59.5    4    2.50     7.0   89    83           83    -6
5    Coastal Path         5    54.5    5    2.60     0.0   79    87           87    +8
6    Riverstone           2    58.0    6    4.85     4.0   86    86           86    +0
7    El Romiachi          8    51.5    7    5.85     0.0   81    81           81    +0
8    Eyjafjallajokull     2    59.5    8    6.85     4.0   89    89           89    +0
9    Play Act             2    60.5    9    8.35     4.0   91    91           91    +0
10   The Winter Lake      4    60.5    10   9.85     7.0   91    85           85    -6
99   Nelson Bay           4    60.0    99   0.00     7.0   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Andy Coogle 79 83 79 +4 4.0 -
2 One Too Many 81 79 77 +2 6.0 -
3 Forest Spy Line 88 85 88 -3 4.0
4 Champonelle 89 87 83 +4 7.0 -
5 Coastal Path 79 77 87 -10 0.0 -
6 Riverstone 86 84 86 -2 4.0 -
7 El Romiachi 81 77 81 -4 0.0 -
8 Eyjafjallajokull 89 86 89 -3 4.0 -
9 Play Act 91 80 91 -11 4.0 -
10 The Winter Lake 91 87 85 +2 7.0 -
99 Nelson Bay - 90 84 +6 7.0 -
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