Official NHA Assessment

Race 9: TATTERSALLS JAMAICA HANDICAP (Listed) (For Fillies and Mares)

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Line Horse
Flower Of Saigon
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 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    Gold Poker Game      2    53.0    1    0.00     0.0   93    89           93    +0
2    Flower Of Saigon     4    55.5    2    1.45     3.0   93    93           93    +0
3    Time Flies           3    53.0    3    1.75     6.0   86    82           82    -4
4    Bye Bye Bombshell    3    58.5    4    2.50     6.0   100   92           92    -8
5    Young Love           3    57.5    5    3.00     6.0   98    89           89    -9
6    Winter Scout         3    53.0    6    4.75     6.0   87    77           77    -10
7    Black Silver         4    56.5    7    6.00     3.0   95    90           90    -5
8    Do Angels Cry        4    60.0    8    6.40     3.0   102   97           97    -5
9    Follow The Star      5    56.5    9    8.65     0.0   95    96           96    +1
10   Evening Primrose     3    53.0    10   99.97    6.0   89    77           79    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gold Poker Game 93 105 93 +12 0.0 -
2 Flower Of Saigon Line 93 102 93 +9 3.0
3 Time Flies 86 117 82 +35 6.0 -
4 Bye Bye Bombshell 100 93 92 +1 6.0 -
5 Young Love 98 95 89 +6 6.0 -
6 Winter Scout 87 80 77 +3 6.0 -
7 Black Silver 95 86 90 -4 3.0 -
8 Do Angels Cry 102 89 97 -8 3.0 -
9 Follow The Star 95 86 96 -10 0.0 -
10 Evening Primrose 89 77 79 -2 6.0 -
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