Official NHA Assessment

Race 2: TAB TELEBET 0861 000 822 MAIDEN PLATE (For all Maidens)

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Line Horse
Tipsy Tina
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 9
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    Horsey               2    59.0    1    0.00     5.5   70    70           70    +0
2    Tipsy Tina           2    56.5    2    0.25     5.5   65    65           65    +0
3    Captain Morne        3    60.0    3    0.75     8.5   -     66           66    +66
4    Kilmonivaig          5    56.5    4    1.50     0.0   -     76           76    +76
5    Greek Mafia          5    58.5    5    2.75     0.0   -     80           80    +80
99   Seismic Event        2    59.0    99   0.00     5.5   -     70           70    +0
99   Goom Goom            3    60.0    99   0.00     8.5   -     66           66    +0
99   Dog Detachment       4    60.0    99   0.00     10.0  -     63           63    +0
99   Nellie Bly           2    56.5    99   0.00     5.5   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Horsey 70 71 70 +1 5.5 -
2 Tipsy Tina Line 65 91 65 +26 5.5
3 Captain Morne - 53 66 -13 8.5 -
4 Kilmonivaig - 56 76 -20 0.0 -
5 Greek Mafia - 45 80 -35 0.0 -
99 Seismic Event - 70 70 ✓ Match 5.5 -
99 Goom Goom - 59 66 -7 8.5 -
99 Dog Detachment - 60 63 -3 10.0 -
99 Nellie Bly - 71 65 +6 5.5 -
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