Official NHA Assessment

Race 3: TAB TELEBET 0861 000 822 MR 84 HANDICAP (Open)

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Line Horse
Speed Racer
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
4 / 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    Hair Trigger         2    54.5    1    0.00     6.5   73    82           73    +0
2    Speed Racer          4    60.0    2    0.75     11.0  84    84           84    +0
3    Silva City           2    59.0    3    0.85     6.5   95    91           91    -4
4    Donny Tee            4    57.0    4    2.35     11.0  78    78           78    +0
5    Swiss Walt           4    52.0    5    3.10     11.0  76    68           68    -8
6    Larius Lacus         2    49.5    6    8.60     6.5   81    72           72    -9
99   Masked Vigilante     3    59.0    99   0.00     9.5   -     85           85    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Hair Trigger 73 76 73 +3 6.5 -
2 Speed Racer Line 84 88 84 +4 11.0
3 Silva City 95 99 91 +8 6.5 -
4 Donny Tee 78 68 78 -10 11.0 -
5 Swiss Walt 76 74 68 +6 11.0 -
6 Larius Lacus 81 75 72 +3 6.5 -
99 Masked Vigilante - 78 85 -7 9.5 -
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