Official NHA Assessment

Race 4: BETWAY SUMMER CUP 26 NOVEMBER MR 93 OPEN HANDICAP (3 year olds) (3 year olds)

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Line Horse
Meridius
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
7 / 7
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    African Torrent      2    52.0    1    0.00     0.0   77    74           77    +0
2    Atticus Finch        5    56.5    2    0.50     0.0   86    88           88    +2
3    Meridius             2    58.5    3    1.50     0.0   90    90           90    +0
4    Ignatius             2    56.5    4    1.55     0.0   86    86           86    +0
5    Libeccio             5    53.0    5    3.25     0.0   79    78           78    -1
6    Simple Simple        5    60.0    6    4.50     0.0   93    90           90    -3
7    Prosper's Gift       2    52.0    7    7.75     0.0   76    74           74    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 African Torrent 77 68 77 -9 0.0 -
2 Atticus Finch 86 127 88 +39 0.0 -
3 Meridius Line 90 115 90 +25 0.0
4 Ignatius 86 70 86 -16 0.0 -
5 Libeccio 79 62 78 -16 0.0 -
6 Simple Simple 93 71 90 -19 0.0 -
7 Prosper's Gift 76 64 74 -10 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