Official NHA Assessment

Race 6: SWEET CHESTNUT STAKES (Listed) (For F&M 3-years & older)

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Line Horse
Gold Poker Game
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
4 / 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  
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1    Be Merry             2    53.0    1    0.00     0.0   97    91           91    -6
2    Callmegetrix         4    54.5    2    1.00     1.0   94    96           96    +2
3    Scarlet Macaw        2    56.5    3    1.10     0.0   111   102          102   -9
4    Gold Poker Game      2    58.5    4    2.60     0.0   104   104          104   +0
5    Rainbow Lorikeet     2    61.0    5    3.35     0.0   111   108          108   -3
6    My Flower Fate       3    54.5    6    3.75     2.0   86    91           91    +5
7    Lock And Key         2    53.0    7    4.05     0.0   98    92           92    -6
8    Gimmethatpearl       3    55.5    8    7.05     2.0   96    92           92    -4
9    Kyalami Girl         2    55.5    9    8.30     0.0   95    96           96    +1
10   Miss World           3    53.0    10   9.55     2.0   99    87           89    -10
11   Princess Izzy        2    58.5    11   16.05    0.0   104   102          102   -2
99   I'm So Pritti        2    54.0    99   0.00     0.0   -     93           93    +0
99   Kinda Wonderful      2    56.0    99   0.00     0.0   -     97           97    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Be Merry 97 104 91 +13 0.0 -
2 Callmegetrix 94 113 96 +17 1.0 -
3 Scarlet Macaw 111 107 102 +5 0.0 -
4 Gold Poker Game Line 104 105 104 +1 0.0
5 Rainbow Lorikeet 111 115 108 +7 0.0 -
6 My Flower Fate 86 86 91 -5 2.0 -
7 Lock And Key 98 94 92 +2 0.0 -
8 Gimmethatpearl 96 98 92 +6 2.0 -
9 Kyalami Girl 95 88 96 -8 0.0 -
10 Miss World 99 91 89 +2 2.0 -
11 Princess Izzy 104 104 102 +2 0.0 -
99 I'm So Pritti - 100 93 +7 0.0 -
99 Kinda Wonderful - 108 97 +11 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