Official NHA Assessment

Race 6: RIETHUISKRAAL STUD OPEN MAIDEN (F & M) (For all Maiden Fillies & Mares.)

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Line Horse
Red State
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
5 / 10
Within 2 points
Significant Diffs
3 / 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    Cold Breeze          2    53.5    1    0.00     1.5   63    65           65    +2
2    Timeline             3    49.5    2    0.50     2.5   60    55           55    -5
3    Red State            3    54.5    3    2.75     2.5   65    65           65    +0
4    Vivo Per Lei         3    56.0    4    3.75     2.5   67    68           68    +1
5    Lifelong Dance       3    47.5    5    5.00     2.5   59    51           51    -8
6    Rosa Osiria          3    56.5    6    5.05     2.5   69    69           69    +0
7    Miss Mackie          3    52.0    7    5.15     2.5   59    60           60    +1
8    United We Stand      3    52.0    8    5.45     2.5   50    60           60    +10
9    See The Sign         3    51.5    9    6.45     2.5   50    59           59    +9
10   Call Me Jane         3    60.0    10   9.45     2.5   76    76           76    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cold Breeze 63 64 65 -1 1.5 -
2 Timeline 60 53 55 -2 2.5 -
3 Red State Line 65 65 65 ✓ Match 2.5
4 Vivo Per Lei 67 66 68 -2 2.5 -
5 Lifelong Dance 59 53 51 +2 2.5 -
6 Rosa Osiria 69 57 69 -12 2.5 -
7 Miss Mackie 59 49 60 -11 2.5 -
8 United We Stand 50 50 60 -10 2.5 -
9 See The Sign 50 54 59 -5 2.5 -
10 Call Me Jane 76 72 76 -4 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