Official NHA Assessment

Race 3: www.galloptv.co.za MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Chelsea Blue
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
8 / 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    Cataleya Summer      2    59.0    1    0.00     0.0   68    7            7     -61
2    Chelsea Blue         3    59.0    2    0.70     6.0   -     -            -     +0
3    Guten Tag            2    59.0    3    2.20     0.0   65    10           55    -10
4    Gelsomina            3    60.0    4    2.40     6.0   51    -1           41    -10
5    Cry Freedom          4    60.0    5    3.30     3.0   -     4            4     +4
6    Telio                2    56.5    6    4.00     0.0   73    3            63    -10
7    If You Say So        3    60.0    7    6.00     6.0   60    -3           50    -10
8    Sundog               3    59.0    8    10.40    6.0   43    -5           33    -10
99   Luck Of The Iris     4    60.0    99   0.00     3.0   -     3            3     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cataleya Summer 68 74 7 +67 0.0 -
2 Chelsea Blue Line - 60 - +60 6.0
3 Guten Tag 65 62 55 +7 0.0 -
4 Gelsomina 51 55 41 +14 6.0 -
5 Cry Freedom - 53 4 +49 3.0 -
6 Telio 73 54 63 -9 0.0 -
7 If You Say So 60 57 50 +7 6.0 -
8 Sundog 43 33 33 ✓ Match 6.0 -
99 Luck Of The Iris - 47 3 +44 3.0 -
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