Official NHA Assessment

Race 6: TRACK & BALL GAMING FM 84 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Lady Yusra
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
3 / 13
Within 2 points
Significant Diffs
6 / 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    Purple Nkanyezi      5    61.0    1    0.00     0.0   86    89           86    +0
2    Lady Yusra           3    57.5    2    2.40     1.0   82    82           82    +0
3    Mckenna Skye         3    59.0    3    2.45     1.0   85    85           85    +0
4    Magical Flight       4    62.0    4    2.75     0.5   88    92           92    +4
5    Crazy Blues          3    57.0    5    2.80     1.0   81    81           81    +0
6    Retail Therapy       5    57.0    6    3.10     0.0   78    83           83    +5
7    Bingin Beach         3    54.5    7    4.50     1.0   76    74           74    -2
8    Aisling              3    57.5    8    5.50     1.0   82    80           80    -2
9    Jack's Bird          5    54.0    9    5.75     0.0   80    75           75    -5
10   Indigo Fields        3    57.0    10   7.15     1.0   81    79           79    -2
11   Tupelo Honey         5    57.0    11   8.55     0.0   78    81           81    +3
12   Pelargonium          3    58.5    12   10.55    1.0   84    82           82    -2
99   Desert Pride         4    52.0    99   0.00     0.5   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Purple Nkanyezi 86 80 86 -6 0.0 -
2 Lady Yusra Line 82 85 82 +3 1.0
3 Mckenna Skye 85 69 85 -16 1.0 -
4 Magical Flight 88 85 92 -7 0.5 -
5 Crazy Blues 81 78 81 -3 1.0 -
6 Retail Therapy 78 70 83 -13 0.0 -
7 Bingin Beach 76 78 74 +4 1.0 -
8 Aisling 82 66 80 -14 1.0 -
9 Jack's Bird 80 75 75 ✓ Match 0.0 -
10 Indigo Fields 81 77 79 -2 1.0 -
11 Tupelo Honey 78 76 81 -5 0.0 -
12 Pelargonium 84 84 82 +2 1.0 -
99 Desert Pride - 61 70 -9 0.5 -
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