Official NHA Assessment

Race 6: CAPE RACING SALES CAPE C STAKES (F & M) (For Fillies & Mares with a nett rating of 74 & below)

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Line Horse
On Board
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
6 / 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    Silver Screen        2    57.0    1    0.00     3.0   63    67           67    +4
2    Palo Queen           5    60.0    2    0.50     0.0   73    79           79    +6
3    On Board             3    60.5    3    3.75     4.5   71    71           71    +0
4    Where's The Party    5    61.5    4    3.80     0.0   74    82           82    +8
5    Why Not Jackie       5    55.5    5    5.30     0.0   62    70           70    +8
6    Easy Money           4    58.5    6    5.60     5.0   73    66           66    -7
7    Tibetan Voyage       3    60.0    7    5.65     4.5   75    70           70    -5
8    Querandi             2    60.0    8    7.90     3.0   76    73           73    -3
9    Amethystic           2    57.0    9    13.40    3.0   63    67           67    +4
99   Country Time         5    60.0    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 Silver Screen 63 70 67 +3 3.0 -
2 Palo Queen 73 70 79 -9 0.0 -
3 On Board Line 71 66 71 -5 4.5
4 Where's The Party 74 85 82 +3 0.0 -
5 Why Not Jackie 62 65 70 -5 0.0 -
6 Easy Money 73 56 66 -10 5.0 -
7 Tibetan Voyage 75 51 70 -19 4.5 -
8 Querandi 76 64 73 -9 3.0 -
9 Amethystic 63 50 67 -17 3.0 -
99 Country Time - 62 79 -17 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