Official NHA Assessment

Race 7: RACEHORSE OWNERS ASSOCIATION CLASSIFIED STAKES (For horses with nett rating of 71 and below)

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Line Horse
Lulu's Boy
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
3 / 14
Within 2 points
Significant Diffs
8 / 14
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    Quattro Passi        5    54.0    1    0.00     0.0   59    56           56    -3
2    Bella Rosa           5    52.5    2    1.00     0.0   62    57           57    -5
3    Corapi               3    57.5    3    1.50     1.5   71    63           63    -8
4    Lulu's Boy           5    56.0    4    1.70     0.0   63    63           63    +0
5    Cocoa Hill           3    52.0    5    1.80     1.5   57    52           52    -5
6    Speechmaker          5    56.0    6    1.90     0.0   64    63           63    -1
7    Sergei               4    50.0    7    3.40     0.5   59    48           49    -10
8    The Makwakkers       6    60.0    8    3.90     0.0   69    69           69    +0
9    Courante             3    58.0    9    4.90     1.5   74    61           64    -10
10   Desert Crusader      3    56.0    10   6.90     1.5   64    57           57    -7
11   Stupefy              5    54.0    11   8.40     0.0   56    56           56    +0
12   Jackman              8    54.5    12   19.40    0.0   42    57           57    +15
13   Joint Effort         5    58.0    13   21.40    0.0   64    64           64    +0
99   In Cahoots           6    60.0    99   0.00     0.0   -     68           68    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Quattro Passi 59 62 56 +6 0.0 -
2 Bella Rosa 62 58 57 +1 0.0 -
3 Corapi 71 67 63 +4 1.5 -
4 Lulu's Boy Line 63 71 63 +8 0.0
5 Cocoa Hill 57 63 52 +11 1.5 -
6 Speechmaker 64 61 63 -2 0.0 -
7 Sergei 59 55 49 +6 0.5 -
8 The Makwakkers 69 68 69 -1 0.0 -
9 Courante 74 73 64 +9 1.5 -
10 Desert Crusader 64 54 57 -3 1.5 -
11 Stupefy 56 50 56 -6 0.0 -
12 Jackman 42 40 57 -17 0.0 -
13 Joint Effort 64 59 64 -5 0.0 -
99 In Cahoots - 54 68 -14 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