Official NHA Assessment

Race 7: BOOSHLE G, AYANDA MVP AND NEON DREAMS LIVE 29 NOVEMBER FM 67 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Surprise Party
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
4 / 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    Ethical              2    59.5    1    0.00     0.0   82    75           82    +0
2    Surprise Party       2    59.0    2    0.50     0.0   81    81           81    +0
3    Pepper Tree          2    58.0    3    1.10     0.0   79    78           78    -1
4    Hopscotch            2    58.5    4    2.60     0.0   80    77           77    -3
5    Rejuvenate           2    58.0    5    2.85     0.0   79    75           75    -4
6    Pomozelous           3    58.5    6    2.95     8.0   64    60           60    -4
7    Red Sparrow          3    57.0    7    5.75     8.0   62    54           54    -8
8    Party Punch          3    60.0    8    8.75     8.0   68    60           60    -8
9    Count Your Chances   5    53.0    9    9.85     0.0   53    62           62    +9
99   Matcha Mint          2    60.0    99   0.00     0.0   -     76           76    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ethical 82 85 82 +3 0.0 -
2 Surprise Party Line 81 83 81 +2 0.0
3 Pepper Tree 79 67 78 -11 0.0 -
4 Hopscotch 80 66 77 -11 0.0 -
5 Rejuvenate 79 79 75 +4 0.0 -
6 Pomozelous 64 62 60 +2 8.0 -
7 Red Sparrow 62 55 54 +1 8.0 -
8 Party Punch 68 62 60 +2 8.0 -
9 Count Your Chances 53 51 62 -11 0.0 -
99 Matcha Mint - 83 76 +7 0.0 -
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