Official NHA Assessment

Race 8: BETONTAB.CO.ZA MR 72 APPRENTICE HANDICAP (Open)

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Line Horse
Written In Stone
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
0 / 13
Within 2 points
Significant Diffs
7 / 13
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Elusive Swann        4    53.5    1    0.00     1.0   67    55           67    +0
2    Gilded Butterfly     3    56.5    2    0.25     2.0   73    59           63    -10
3    Here Is The Tiger    3    56.5    3    1.75     2.0   73    62           63    -10
4    Written In Stone     9    59.0    4    3.00     0.0   70    70           70    +0
5    West Point           3    56.5    5    4.00     2.0   75    60           65    -10
6    Letsdoit             3    60.0    6    5.50     2.0   77    66           67    -10
7    Power Ranger         7    57.0    7    9.50     0.0   69    64           64    -5
8    Count Pablo          3    55.5    8    10.00    2.0   71    57           61    -10
9    Father Time          5    48.5    9    12.50    0.0   57    47           47    -10
10   Love Posy            4    53.5    10   15.50    1.0   62    55           55    -7
99   In Cahoots           6    59.0    99   0.00     0.0   -     68           68    +0
99   Strong Casha         4    49.5    99   0.00     1.0   -     47           47    +0
99   Snow Symphony        4    48.0    99   0.00     1.0   -     44           44    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Elusive Swann 67 72 67 +5 1.0 -
2 Gilded Butterfly 73 108 63 +45 2.0 -
3 Here Is The Tiger 73 72 63 +9 2.0 -
4 Written In Stone Line 70 67 70 -3 0.0
5 West Point 75 53 65 -12 2.0 -
6 Letsdoit 77 72 67 +5 2.0 -
7 Power Ranger 69 69 64 +5 0.0 -
8 Count Pablo 71 57 61 -4 2.0 -
9 Father Time 57 56 47 +9 0.0 -
10 Love Posy 62 59 55 +4 1.0 -
99 In Cahoots - 54 68 -14 0.0 -
99 Strong Casha - 59 47 +12 1.0 -
99 Snow Symphony - 50 44 +6 1.0 -
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