Official NHA Assessment

Race 2: BETWAY FM 80 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Mount Etna
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
6 / 8
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    Explosive Bond       4    52.0    1    0.00     3.5   77    78           77    +0
2    Mount Etna           4    55.0    2    5.25     3.5   84    84           84    +0
3    Ideal Future         6    52.5    3    5.50     0.0   68    86           86    +18
4    Special Charm        3    58.5    4    9.25     7.0   85    84           84    -1
5    Avoontoast           5    56.5    5    9.75     0.0   75    94           94    +19
6    Antananarivo         4    52.0    6    13.50    3.5   62    78           78    +16
7    Elemental Force      2    50.5    7    99.99    0.0   78    82           82    +4
99   Pretty In Pearls     3    55.5    99   0.00     7.0   -     78           78    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Explosive Bond 77 94 77 +17 3.5 -
2 Mount Etna Line 84 79 84 -5 3.5
3 Ideal Future 68 72 86 -14 0.0 -
4 Special Charm 85 104 84 +20 7.0 -
5 Avoontoast 75 86 94 -8 0.0 -
6 Antananarivo 62 57 78 -21 3.5 -
7 Elemental Force 78 78 82 -4 0.0 -
99 Pretty In Pearls - 56 78 -22 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