Official NHA Assessment

Race 3: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 NOVICE HANDICAP (Maidens & 1 time winners)

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Line Horse
Mount Darwin
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
9 / 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    Mastership           2    56.5    1    0.00     0.0   81    84           81    +0
2    Happy Mo             3    57.0    2    0.50     2.0   82    86           86    +4
3    Mount Darwin         3    60.0    3    3.60     2.0   88    88           88    +0
4    Prince Of Kildare    4    52.5    4    4.60     0.5   73    75           75    +2
5    Golden Pavilion      2    55.5    5    4.65     0.0   79    82           82    +3
6    Miss Scaletta        3    50.5    6    4.85     2.0   87    68           77    -10
7    Mocha Frappe         2    54.5    7    5.10     0.0   77    80           80    +3
8    Irish Love           4    55.5    8    5.70     0.5   79    81           81    +2
9    Feel All Right       2    54.5    9    6.30     0.0   77    80           80    +3
10   American Biscuit     3    56.5    10   8.40     2.0   77    80           80    +3
11   Billy Spellbound     2    59.5    11   15.40    0.0   83    90           90    +7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mastership 81 105 81 +24 0.0 -
2 Happy Mo 82 89 86 +3 2.0 -
3 Mount Darwin Line 88 81 88 -7 2.0
4 Prince Of Kildare 73 80 75 +5 0.5 -
5 Golden Pavilion 79 95 82 +13 0.0 -
6 Miss Scaletta 87 96 77 +19 2.0 -
7 Mocha Frappe 77 68 80 -12 0.0 -
8 Irish Love 79 67 81 -14 0.5 -
9 Feel All Right 77 70 80 -10 0.0 -
10 American Biscuit 77 65 80 -15 2.0 -
11 Billy Spellbound 83 73 90 -17 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