Official NHA Assessment

Race 2: BETONTAB.CO.ZA MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Spirit Princess
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
9 / 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    Mia Fiore            4    60.0    1    0.00     1.0   65    68           68    +3
2    Spirit Princess      2    60.0    2    2.75     0.0   72    72           72    +0
3    Count Your Chances   5    60.0    3    5.25     0.0   67    70           70    +3
4    Khateera             2    53.5    4    5.75     0.0   -     57           57    +57
5    Oriental Odyssey     2    60.0    5    7.00     0.0   -     70           70    +70
6    Have A Party         3    60.0    6    11.00    2.5   58    65           65    +7
7    Atchison Topeka      3    60.0    7    15.00    2.5   -     65           65    +65
8    Leahlicious          3    60.0    8    16.00    2.5   47    65           65    +18
9    Paradise Flower      3    60.0    9    22.00    2.5   58    65           65    +7
99   Delightful Angel     3    60.0    99   0.00     2.5   -     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 Mia Fiore 65 77 68 +9 1.0 -
2 Spirit Princess Line 72 51 72 -21 0.0
3 Count Your Chances 67 51 70 -19 0.0 -
4 Khateera - 78 57 +21 0.0 -
5 Oriental Odyssey - 56 70 -14 0.0 -
6 Have A Party 58 64 65 -1 2.5 -
7 Atchison Topeka - 51 65 -14 2.5 -
8 Leahlicious 47 42 65 -23 2.5 -
9 Paradise Flower 58 37 65 -28 2.5 -
99 Delightful Angel - - 65 -65 2.5 -
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