Official NHA Assessment

Race 4: www.galloptv.co.za OPEN MAIDEN (F & M) (For all Maiden Fillies & Mares.)

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Line Horse
Praise De La Rey
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 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    Pretty Kara          3    59.5    1    0.00     6.0   -     60           6     +6
2    Harpa                2    55.0    2    0.40     0.0   70    68           68    -2
3    Spirit Of Shimla     3    59.5    3    2.30     6.0   -     62           62    +62
4    Praise De La Rey     2    54.0    4    2.90     0.0   63    63           63    +0
5    Echo                 3    58.5    5    4.10     6.0   65    59           59    -6
6    Chooks Kiss          3    59.5    6    6.10     6.0   -     60           60    +60
7    Roy's Blossom        4    61.5    7    10.70    3.0   66    70           70    +4
99   Tickey Box           3    59.5    99   0.00     6.0   -     60           60    +0
99   Bookworm             2    59.5    99   0.00     0.0   -     72           72    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pretty Kara - 80 6 +74 6.0 -
2 Harpa 70 74 68 +6 0.0 -
3 Spirit Of Shimla - 81 62 +19 6.0 -
4 Praise De La Rey Line 63 66 63 +3 0.0
5 Echo 65 67 59 +8 6.0 -
6 Chooks Kiss - 73 60 +13 6.0 -
7 Roy's Blossom 66 54 70 -16 3.0 -
99 Tickey Box - - 60 -60 6.0 -
99 Bookworm - - 72 -72 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