Official NHA Assessment

Race 5: RACEHORSE OWNERS ASSOCIATION MIDDLE STAKES (For horses with nett rating of 92 and below)

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Line Horse
Assured
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
5 / 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    Irish Rain           4    54.0    1    0.00     1.0   73    70           70    -3
2    Assured              4    56.0    2    1.25     1.0   80    80           80    +0
3    You Know Who         3    60.0    3    1.30     2.0   92    85           85    -7
4    Wings Of Fire        4    55.5    4    2.55     1.0   84    77           77    -7
5    Waiting For Summer   3    58.0    5    3.80     2.0   87    78           78    -9
6    American Landing     7    54.0    6    4.30     0.0   74    73           73    -1
7    Barak                5    58.0    7    4.35     0.0   85    81           81    -4
8    Jacob's Ladder       4    56.5    8    4.45     1.0   83    76           76    -7
9    Royal Shindig        4    50.5    9    8.95     1.0   72    63           63    -9
10   Great Warrior        5    56.5    10   12.70    0.0   83    77           77    -6
11   Swanking             5    50.0    11   22.95    0.0   51    64           64    +13
99   Magical Midlands     4    56.0    99   0.00     1.0   -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Irish Rain 73 71 70 +1 1.0 -
2 Assured Line 80 76 80 -4 1.0
3 You Know Who 92 91 85 +6 2.0 -
4 Wings Of Fire 84 93 77 +16 1.0 -
5 Waiting For Summer 87 79 78 +1 2.0 -
6 American Landing 74 80 73 +7 0.0 -
7 Barak 85 97 81 +16 0.0 -
8 Jacob's Ladder 83 73 76 -3 1.0 -
9 Royal Shindig 72 62 63 -1 1.0 -
10 Great Warrior 83 78 77 +1 0.0 -
11 Swanking 51 48 64 -16 0.0 -
99 Magical Midlands - 79 74 +5 1.0 -
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