Official NHA Assessment

Race 2: CHESHIRE HOMES CHATSWORTH MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Nonoti
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
9 / 12
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    Nonoti               2    58.5    1    0.00     0.0   63    63           63    +0
2    Dymondia             2    58.0    2    0.70     0.0   73    67           67    -6
3    Elusive Belle        4    58.0    3    1.90     5.0   -     55           55    +55
4    Nightingales Sing    3    58.0    4    3.00     8.0   -     48           48    +48
5    Perfectly Picked     3    58.0    5    3.15     8.0   -     48           48    +48
6    Kylie's Angel        3    58.0    6    4.95     8.0   -     46           46    +46
7    Rosy Future          4    60.0    7    8.15     5.0   -     56           56    +56
8    Whatdidisay          3    54.0    8    9.95     8.0   -     38           38    +38
9    Meldiva Gold         3    58.0    9    10.25    8.0   -     46           46    +46
10   Golden Butterfly     3    58.0    10   10.95    8.0   50    46           46    -4
11   Rock My Heart        3    60.0    11   13.75    8.0   39    50           50    +11
12   Alpine Girl          3    58.0    12   22.55    8.0   -     46           46    +46
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Nonoti Line 63 57 63 -6 0.0
2 Dymondia 73 49 67 -18 0.0 -
3 Elusive Belle - 51 55 -4 5.0 -
4 Nightingales Sing - 79 48 +31 8.0 -
5 Perfectly Picked - 58 48 +10 8.0 -
6 Kylie's Angel - 60 46 +14 8.0 -
7 Rosy Future - 55 56 -1 5.0 -
8 Whatdidisay - 55 38 +17 8.0 -
9 Meldiva Gold - 52 46 +6 8.0 -
10 Golden Butterfly 50 53 46 +7 8.0 -
11 Rock My Heart 39 50 50 ✓ Match 8.0 -
12 Alpine Girl - 52 46 +6 8.0 -
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