Official NHA Assessment

Race 2: RACING240 FOR RACING. FOR YOU WORK RIDERS MAIDEN PLATE (For all Maidens)

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Line Horse
Mandalay
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
9 / 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    Mandalay             3    57.5    1    0.00     7.5   63    63           63    +0
2    Fiddleronthecliffs   3    59.0    2    0.20     7.5   -     66           66    +66
3    Fly Isabella Fly     3    56.5    3    0.90     7.5   -     61           61    +61
4    Tiger In Red         3    59.0    4    4.00     7.5   -     66           66    +66
5    Last Survivor        2    59.0    5    4.75     5.0   68    71           71    +3
6    Southern Style       5    55.0    6    14.00    0.0   71    73           73    +2
7    American Hashtag     3    59.0    7    14.25    7.5   -     66           66    +66
8    Going Global         3    60.0    8    14.50    7.5   37    68           68    +31
9    Silver Gray          3    59.0    9    22.00    7.5   -     66           66    +66
10   Stalker              3    59.0    10   27.00    7.5   -     66           66    +66
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mandalay Line 63 53 63 -10 7.5
2 Fiddleronthecliffs - 76 66 +10 7.5 -
3 Fly Isabella Fly - 74 61 +13 7.5 -
4 Tiger In Red - 66 66 ✓ Match 7.5 -
5 Last Survivor 68 64 71 -7 5.0 -
6 Southern Style 71 54 73 -19 0.0 -
7 American Hashtag - 52 66 -14 7.5 -
8 Going Global 37 50 68 -18 7.5 -
9 Silver Gray - - 66 -66 7.5 -
10 Stalker - 41 66 -25 7.5 -
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