Official NHA Assessment

Race 3: PLAY SOCCER 6, 10 AND 13 MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
Whistledown
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
7 / 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    Whistledown          4    60.0    1    0.00     1.0   66    66           66    +0
2    Butternutenrooiwyn   2    60.0    2    0.05     0.0   59    68           68    +9
3    Perform              2    60.0    3    1.50     0.0   55    71           71    +16
4    Chicago Lass         6    60.0    4    5.25     0.0   59    68           68    +9
5    Spirit In The Wind   4    60.0    5    8.75     1.0   63    66           66    +3
6    Villa Semaya         2    60.0    6    8.80     0.0   63    68           68    +5
7    Tipperary            3    55.0    7    8.85     2.0   -     54           54    +54
8    Enchanted Royal      3    60.0    8    20.50    2.0   45    64           64    +19
99   Captains Clover      2    55.0    99   0.00     0.0   -     58           58    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Whistledown Line 66 63 66 -3 1.0
2 Butternutenrooiwyn 59 60 68 -8 0.0 -
3 Perform 55 54 71 -17 0.0 -
4 Chicago Lass 59 43 68 -25 0.0 -
5 Spirit In The Wind 63 60 66 -6 1.0 -
6 Villa Semaya 63 59 68 -9 0.0 -
7 Tipperary - 64 54 +10 2.0 -
8 Enchanted Royal 45 49 64 -15 2.0 -
99 Captains Clover - 54 58 -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