Official NHA Assessment

Race 5: TRACK & BALL GAMING MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Mythical Tune
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 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    Bosnay               4    56.0    1    0.00     0.5   -     50           6     +6
2    Mythical Tune        3    60.0    2    2.30     2.0   57    57           57    +0
3    Theappleofmyeye      3    60.0    3    3.40     2.0   -     56           56    +56
4    St Cloud             3    60.0    4    3.60     2.0   63    56           56    -7
5    Ntombenhle           3    60.0    5    6.30     2.0   -     55           55    +55
6    Adelante             3    60.0    6    7.40     2.0   52    55           55    +3
7    La Dame Drapeau      3    58.5    7    12.30    2.0   50    52           52    +2
8    Attagirl Rhonda      2    56.0    8    14.50    0.0   -     51           51    +51
9    Galaxy Rose          2    54.5    9    16.90    0.0   -     48           48    +48
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bosnay - 74 6 +68 0.5 -
2 Mythical Tune Line 57 50 57 -7 2.0
3 Theappleofmyeye - 63 56 +7 2.0 -
4 St Cloud 63 73 56 +17 2.0 -
5 Ntombenhle - 64 55 +9 2.0 -
6 Adelante 52 50 55 -5 2.0 -
7 La Dame Drapeau 50 58 52 +6 2.0 -
8 Attagirl Rhonda - 53 51 +2 0.0 -
9 Galaxy Rose - 44 48 -4 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