Official NHA Assessment

Race 5: RACING240 MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Master'S Rose
Reference for assessment
Exact Matches
3 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
2 / 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    Greenandgold         3    60.0    1    0.00     2.0   -     67           6     +6
2    Hawksdale            2    60.0    2    2.00     0.0   68    74           74    +6
3    Master'S Rose        3    60.0    3    3.80     2.0   68    68           68    +0
4    Savara's Princess    2    60.0    4    4.40     0.0   69    71           71    +2
5    Money Galore         2    58.5    5    5.10     0.0   63    68           68    +5
6    Sapphire Sun         2    60.0    6    5.50     0.0   71    71           71    +0
7    Flying World         2    58.5    7    6.75     0.0   70    68           68    -2
8    Purple Rain          3    60.0    8    9.25     2.0   -     67           67    +67
9    Miss River Dancer    3    60.0    9    14.75    2.0   -     67           67    +67
99   Bella Boop Boop      3    60.0    99   0.00     2.0   -     67           67    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Greenandgold - 75 6 +69 2.0 -
2 Hawksdale 68 71 74 -3 0.0 -
3 Master'S Rose Line 68 68 68 ✓ Match 2.0
4 Savara's Princess 69 67 71 -4 0.0 -
5 Money Galore 63 65 68 -3 0.0 -
6 Sapphire Sun 71 71 71 ✓ Match 0.0 -
7 Flying World 70 68 68 ✓ Match 0.0 -
8 Purple Rain - 71 67 +4 2.0 -
9 Miss River Dancer - 68 67 +1 2.0 -
99 Bella Boop Boop - 58 67 -9 2.0 -
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