Official NHA Assessment

Race 4: RACEHORSE OWNERS ASSOCIATION WORK RIDERS MAIDEN PLATE (For all Maidens)

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Line Horse
Mike The Pilot
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
11 / 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    Mike The Pilot       3    60.0    1    0.00     2.0   66    66           66    +0
2    Triple Decker        3    60.0    2    0.60     2.0   62    71           71    +9
3    Lizado               3    60.0    3    1.10     2.0   61    70           70    +9
4    Big Five             3    60.0    4    1.75     2.0   58    69           69    +11
5    Great Melody         3    60.0    5    2.25     2.0   63    69           69    +6
6    Stolen Thunder       3    60.0    6    2.50     2.0   -     68           68    +68
7    Dark Horse           3    60.0    7    5.50     2.0   -     66           66    +66
8    Equerry              3    60.0    8    7.00     2.0   48    66           66    +18
9    Sugar Beach          3    60.0    9    14.50    2.0   -     66           66    +66
10   Ra'ed                4    60.0    10   17.00    1.0   55    68           68    +13
11   Northern Tune        4    60.0    11   24.00    1.0   40    68           68    +28
99   Devon Dasher         2    56.0    99   0.00     0.0   -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mike The Pilot Line 66 50 66 -16 2.0
2 Triple Decker 62 64 71 -7 2.0 -
3 Lizado 61 42 70 -28 2.0 -
4 Big Five 58 53 69 -16 2.0 -
5 Great Melody 63 79 69 +10 2.0 -
6 Stolen Thunder - 69 68 +1 2.0 -
7 Dark Horse - 53 66 -13 2.0 -
8 Equerry 48 50 66 -16 2.0 -
9 Sugar Beach - 49 66 -17 2.0 -
10 Ra'ed 55 49 68 -19 1.0 -
11 Northern Tune 40 62 68 -6 1.0 -
99 Devon Dasher - 37 62 -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