Official NHA Assessment

Race 6: GREYVILLE CONVENTION CENTRE FM 70 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Spring Kiss
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
8 / 10
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    Ladyofdistinction    2    56.5    1    0.00     0.0   80    77           80    +0
2    Radu                 5    60.5    2    0.70     0.0   71    90           90    +19
3    Spring Kiss          3    60.0    3    5.40     7.0   70    70           70    +0
4    West Side Story      3    58.5    4    6.00     7.0   81    67           71    -10
5    Safari Lodge         2    61.0    5    6.60     0.0   86    86           86    +0
6    Sweeter Than Honey   5    54.5    6    7.30     0.0   59    73           73    +14
7    Chakpori             3    55.5    7    9.70     7.0   75    61           65    -10
8    Joan The Wad         4    58.0    8    13.00    4.0   66    72           72    +6
9    Rowins Dream         5    52.0    9    13.10    0.0   51    68           68    +17
99   Hodgepodge           3    58.5    99   0.00     7.0   -     67           67    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ladyofdistinction 80 95 80 +15 0.0 -
2 Radu 71 64 90 -26 0.0 -
3 Spring Kiss Line 70 64 70 -6 7.0
4 West Side Story 81 70 71 -1 7.0 -
5 Safari Lodge 86 71 86 -15 0.0 -
6 Sweeter Than Honey 59 56 73 -17 0.0 -
7 Chakpori 75 64 65 -1 7.0 -
8 Joan The Wad 66 53 72 -19 4.0 -
9 Rowins Dream 51 48 68 -20 0.0 -
99 Hodgepodge - 78 67 +11 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