Official NHA Assessment

Race 4: GULF RACING CLUB CAPE B STAKES (F & M) (For Fillies & Mares with a nett rating of 94 & below)

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Line Horse
Fun Zone
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    Japanese Rose        3    52.5    1    0.00     6.0   87    61           61    -26
2    Montelena            4    53.0    2    1.50     3.5   88    70           78    -10
3    Unconquerable Lady   2    54.0    3    1.60     0.0   90    79           80    -10
4    Fun Zone             5    61.5    4    2.35     0.0   93    93           93    +0
5    Gimmethatpearl       3    52.5    5    2.75     6.0   88    63           78    -10
6    Miss Greenlight      3    57.0    6    3.50     6.0   83    71           73    -10
7    Gimmeafirst          2    57.0    7    4.75     0.0   84    82           82    -2
8    Hierkommiebokkie     5    57.0    8    5.75     0.0   84    82           82    -2
99   Red Sash             5    55.5    99   0.00     0.0   -     79           79    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Japanese Rose 87 80 61 +19 6.0 -
2 Montelena 88 90 78 +12 3.5 -
3 Unconquerable Lady 90 90 80 +10 0.0 -
4 Fun Zone Line 93 96 93 +3 0.0
5 Gimmethatpearl 88 98 78 +20 6.0 -
6 Miss Greenlight 83 100 73 +27 6.0 -
7 Gimmeafirst 84 79 82 -3 0.0 -
8 Hierkommiebokkie 84 90 82 +8 0.0 -
99 Red Sash - 101 79 +22 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