Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING TUESDAY 2 MAY MR 81 DIVIDED HANDICAP (Open)

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Line Horse
Millahue
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
5 / 13
Within 2 points
Significant Diffs
6 / 13
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    Tizona               3    60.0    1    0.00     2.5   81    79           81    +0
2    Rain Or Shine        4    54.5    2    0.75     1.0   70    75           75    +5
3    Millahue             3    59.0    3    3.25     2.5   79    79           79    +0
4    After Hours          7    52.0    4    4.25     0.0   62    69           69    +7
5    The Chosen One       2    52.0    5    6.00     0.0   70    68           68    -2
6    Quandary             5    57.0    6    6.05     0.0   80    78           78    -2
7    Robert Burns         3    57.0    7    7.25     2.5   75    73           73    -2
8    Written In Stone     9    49.5    8    9.00     0.0   61    63           63    +2
9    Indus Knight         3    56.5    9    9.25     2.5   74    72           72    -2
10   Phantomoftheforest   3    52.5    10   10.00    2.5   64    64           64    +0
11   Just Eminent         3    52.0    11   11.50    2.5   65    63           63    -2
12   In Cahoots           6    56.0    12   19.00    0.0   73    76           76    +3
99   South Boy (ARG)      4    55.0    99   0.00     1.0   -     72           72    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tizona 81 83 81 +2 2.5 -
2 Rain Or Shine 70 82 75 +7 1.0 -
3 Millahue Line 79 81 79 +2 2.5
4 After Hours 62 79 69 +10 0.0 -
5 The Chosen One 70 52 68 -16 0.0 -
6 Quandary 80 88 78 +10 0.0 -
7 Robert Burns 75 71 73 -2 2.5 -
8 Written In Stone 61 67 63 +4 0.0 -
9 Indus Knight 74 70 72 -2 2.5 -
10 Phantomoftheforest 64 50 64 -14 2.5 -
11 Just Eminent 65 60 63 -3 2.5 -
12 In Cahoots 73 54 76 -22 0.0 -
99 South Boy (ARG) - 71 72 -1 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