Official NHA Assessment

Race 4: TAB TELEBET 0861 000 822 MAIDEN PLATE (For all Maidens)

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Line Horse
Chasing Cheetahs
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
4 / 10
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    Ideal Time           3    60.0    1    0.00     1.0   49    52           52    +3
2    Chasing Cheetahs     3    60.0    2    0.25     1.0   52    52           52    +0
3    Global Beat          3    60.0    3    1.75     1.0   -     55           55    +55
4    Global Gunner        2    56.0    4    2.00     0.0   -     49           49    +49
5    Mactavish            3    60.0    5    2.25     1.0   63    55           55    -8
6    Music Box Special    3    60.0    6    3.00     1.0   51    54           54    +3
7    Broadway             4    60.0    7    3.05     0.5   50    55           55    +5
8    King Of Luv          4    60.0    8    3.80     0.5   49    54           54    +5
9    Winter's Joie        3    60.0    9    5.30     1.0   -     52           52    +52
99   Silvan Park          4    60.0    99   0.00     0.5   -     53           53    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ideal Time 49 54 52 +2 1.0 -
2 Chasing Cheetahs Line 52 58 52 +6 1.0
3 Global Beat - 59 55 +4 1.0 -
4 Global Gunner - 59 49 +10 0.0 -
5 Mactavish 63 58 55 +3 1.0 -
6 Music Box Special 51 53 54 -1 1.0 -
7 Broadway 50 59 55 +4 0.5 -
8 King Of Luv 49 48 54 -6 0.5 -
9 Winter's Joie - 56 52 +4 1.0 -
99 Silvan Park - 44 53 -9 0.5 -
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