Official NHA Assessment

Race 7: GREYVILLE CONVENTION CENTRE MR 92 HANDICAP (Open)

Back to Race
Line Horse
Royal Swan Master
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Dynalley             2    54.0    1    0.00     0.0   82    83           82    +0
2    Royal Swan Master    3    55.5    2    1.50     1.5   86    86           86    +0
3    Blackberry Malt      5    59.5    3    1.55     0.0   91    97           97    +6
4    Cyber Time           3    57.0    4    2.15     1.5   86    89           89    +3
5    Kumemori             5    53.5    5    2.75     0.0   82    84           84    +2
6    Josephine's Pride    2    57.5    6    2.85     0.0   90    92           92    +2
7    Zakho                3    56.5    7    5.35     1.5   85    85           85    +0
99   Syx Hotfix           3    58.5    99   0.00     1.5   -     89           89    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dynalley 82 82 82 ✓ Match 0.0 -
2 Royal Swan Master Line 86 83 86 -3 1.5
3 Blackberry Malt 91 82 97 -15 0.0 -
4 Cyber Time 86 81 89 -8 1.5 -
5 Kumemori 82 71 84 -13 0.0 -
6 Josephine's Pride 90 86 92 -6 0.0 -
7 Zakho 85 87 85 +2 1.5 -
99 Syx Hotfix - 83 89 -6 1.5 -
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