Official NHA Assessment

Race 2: www.tabgold.co.za MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Telio
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
5 / 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    Jazz Diva            3    60.0    1    0.00     3.5   67    65           65    -2
2    Mia Sophia           3    60.0    2    0.05     3.5   60    65           65    +5
3    Telio                2    60.0    3    0.95     2.5   67    67           67    +0
4    Imperious Destiny    3    60.0    4    1.00     3.5   -     65           65    +65
5    Variety Fair         2    60.0    5    1.50     2.5   70    67           67    -3
6    Captain Marvel       3    60.0    6    3.40     3.5   51    65           65    +14
7    Daddy's Jet          3    60.0    7    4.80     3.5   71    65           65    -6
8    Fire Phoenix         2    60.0    8    5.20     2.5   -     67           67    +67
9    Zululanga            3    60.0    9    5.45     3.5   -     65           65    +65
10   La Dame Drapeau      3    58.5    10   14.85    3.5   -     62           62    +62
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jazz Diva 67 70 65 +5 3.5 -
2 Mia Sophia 60 62 65 -3 3.5 -
3 Telio Line 67 54 67 -13 2.5
4 Imperious Destiny - 85 65 +20 3.5 -
5 Variety Fair 70 63 67 -4 2.5 -
6 Captain Marvel 51 49 65 -16 3.5 -
7 Daddy's Jet 71 60 65 -5 3.5 -
8 Fire Phoenix - 59 67 -8 2.5 -
9 Zululanga - 53 65 -12 3.5 -
10 La Dame Drapeau - 58 62 -4 3.5 -
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