Official NHA Assessment

Race 6: CLASSIFIED STAKES (For horses with nett rating of 71 and below)

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Line Horse
Powder Puff
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
4 / 7
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    Emily's Song (ZIM)   4    53.5    1    0.00     2.0   63    63           63    +0
2    Al Mashriq           4    60.0    2    0.50     2.0   69    76           76    +7
3    Powder Puff          4    55.5    3    1.50     2.0   67    67           67    +0
4    Keen Spirit          3    55.5    4    1.75     1.5   66    68           68    +2
5    Ginjamatinja         3    52.0    5    2.75     1.5   45    61           61    +16
6    Albar Warning        3    52.0    6    3.50     1.5   48    61           61    +13
7    Cool Solution        9    58.0    7    4.75     0.0   64    76           76    +12
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Emily's Song (ZIM) 63 66 63 +3 2.0 -
2 Al Mashriq 69 71 76 -5 2.0 -
3 Powder Puff Line 67 58 67 -9 2.0
4 Keen Spirit 66 71 68 +3 1.5 -
5 Ginjamatinja 45 45 61 -16 1.5 -
6 Albar Warning 48 48 61 -13 1.5 -
7 Cool Solution 64 51 76 -25 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