Official NHA Assessment

Race 7: GREYVILLE CONVENTION CENTRE FM 68 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Shaken Not Stirred
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
5 / 9
Within 2 points
Significant Diffs
3 / 9
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    Danse Milord         3    61.0    1    0.00     3.0   70    67           70    +0
2    Dilluh               2    54.0    2    5.00     0.0   61    59           59    -2
3    Shaken Not Stirred   4    54.0    3    6.50     1.5   56    56           56    +0
4    Quanabi              2    59.0    4    7.30     0.0   72    69           69    -3
5    Roy's Rocker         3    52.5    5    10.30    3.0   52    50           50    -2
6    Mystic Angel         2    59.5    6    10.35    0.0   73    70           70    -3
7    Mission Rocks        3    56.5    7    11.65    3.0   70    58           60    -10
8    Gelsomina            3    55.5    8    14.65    3.0   59    56           56    -3
9    American Style       3    58.5    9    20.65    3.0   65    62           62    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Danse Milord 70 94 70 +24 3.0 -
2 Dilluh 61 68 59 +9 0.0 -
3 Shaken Not Stirred Line 56 55 56 -1 1.5
4 Quanabi 72 70 69 +1 0.0 -
5 Roy's Rocker 52 53 50 +3 3.0 -
6 Mystic Angel 73 69 70 -1 0.0 -
7 Mission Rocks 70 74 60 +14 3.0 -
8 Gelsomina 59 55 56 -1 3.0 -
9 American Style 65 60 62 -2 3.0 -
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