Official NHA Assessment

Race 4: PMB & MIDLANDS CHAMBER OF BUSINESS MAIDEN PLATE (For all Maidens)

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Line Horse
Madison Blues
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
10 / 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    Madison Blues        3    60.0    1    0.00     1.5   76    76           76    +0
2    Johnny The Thief     2    54.5    2    1.05     0.0   -     72           72    +72
3    Venerable            3    60.0    3    2.45     1.5   63    78           78    +15
4    Safe Space           5    60.0    4    4.15     0.0   68    80           80    +12
5    Triton               3    60.0    5    5.55     1.5   63    76           76    +13
6    Jury's Out           2    56.0    6    8.95     0.0   -     71           71    +71
7    Dance To The Music   3    60.0    7    9.15     1.5   53    76           76    +23
8    Hiawatha Goldberg    2    54.5    8    9.35     0.0   -     68           68    +68
9    Morning Chess        4    56.0    9    10.35    0.5   -     70           70    +70
10   Just Jay             2    56.0    10   30.35    0.0   -     71           71    +71
99   Pilgrim's Magic      2    56.0    99   0.00     0.0   -     71           71    +0
99   Zin Zan Dan          2    56.0    99   0.00     0.0   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Madison Blues Line 76 70 76 -6 1.5
2 Johnny The Thief - 95 72 +23 0.0 -
3 Venerable 63 62 78 -16 1.5 -
4 Safe Space 68 83 80 +3 0.0 -
5 Triton 63 52 76 -24 1.5 -
6 Jury's Out - 85 71 +14 0.0 -
7 Dance To The Music 53 61 76 -15 1.5 -
8 Hiawatha Goldberg - 57 68 -11 0.0 -
9 Morning Chess - 65 70 -5 0.5 -
10 Just Jay - - 71 -71 0.0 -
99 Pilgrim's Magic - 31 71 -40 0.0 -
99 Zin Zan Dan - 64 71 -7 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