Official NHA Assessment

Race 3: TAB TELEBET 0861 000 822 MR 75 HANDICAP (Open)

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Line Horse
Leeson
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
2 / 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    Arlington Action     6    61.0    1    0.00     0.0   77    81           77    +0
2    Namaqua Blossom      3    59.0    2    1.25     4.5   75    73           73    -2
3    Leeson               3    60.0    3    1.50     4.5   75    75           75    +0
4    Out Of Your League   5    61.5    4    5.50     0.0   78    82           82    +4
5    Nuclear Force        5    53.0    5    6.75     0.0   63    65           65    +2
6    Coromandel           4    48.5    6    12.00    1.5   60    53           53    -7
99   Crepuscolo           4    55.0    99   0.00     1.5   -     66           66    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Arlington Action 77 73 77 -4 0.0 -
2 Namaqua Blossom 75 75 73 +2 4.5 -
3 Leeson Line 75 72 75 -3 4.5
4 Out Of Your League 78 77 82 -5 0.0 -
5 Nuclear Force 63 61 65 -4 0.0 -
6 Coromandel 60 59 53 +6 1.5 -
99 Crepuscolo - 58 66 -8 1.5 -
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