Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING THURSDAY 11 APRIL MR 80 HANDICAP (Open)

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Line Horse
Holocene
Reference for assessment
Exact Matches
1 / 16
Calculated = Official
Close Matches
5 / 16
Within 2 points
Significant Diffs
10 / 16
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    Open Highway         4    55.5    1    0.00     1.0   76    73           76    +0
2    Willow Express       7    56.5    2    2.00     0.0   73    80           80    +7
3    Holocene             4    54.5    3    2.25     1.0   74    74           74    +0
4    Bob's Your Uncle     5    61.0    4    2.75     0.0   82    88           88    +6
5    Kashkaval            3    56.0    5    5.25     2.5   72    71           71    -1
6    Archimides           3    56.0    6    5.50     2.5   72    71           71    -1
7    King Rahul           4    56.5    7    7.75     1.0   78    75           75    -3
8    Simple Simple        5    60.0    8    8.25     0.0   80    84           84    +4
9    Vava Vegas           5    52.5    9    9.50     0.0   61    69           69    +8
10   Iron Sky             3    54.0    10   18.75    2.5   68    67           67    -1
99   Written In Stone     9    48.0    99   0.00     0.0   -     60           60    +0
99   Golden Pavilion      2    57.0    99   0.00     0.0   -     78           78    +0
99   Whorly Whorly        7    57.5    99   0.00     0.0   -     79           79    +0
99   Rattle Bag           6    59.0    99   0.00     0.0   -     82           82    +0
99   Scent Master         3    58.5    99   0.00     2.5   -     76           76    +0
99   Nordic Rebel         8    58.5    99   0.00     0.0   -     81           81    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Open Highway 76 94 76 +18 1.0 -
2 Willow Express 73 82 80 +2 0.0 -
3 Holocene Line 74 76 74 +2 1.0
4 Bob's Your Uncle 82 103 88 +15 0.0 -
5 Kashkaval 72 74 71 +3 2.5 -
6 Archimides 72 70 71 -1 2.5 -
7 King Rahul 78 63 75 -12 1.0 -
8 Simple Simple 80 71 84 -13 0.0 -
9 Vava Vegas 61 58 69 -11 0.0 -
10 Iron Sky 68 61 67 -6 2.5 -
99 Written In Stone - 67 60 +7 0.0 -
99 Golden Pavilion - 95 78 +17 0.0 -
99 Whorly Whorly - 78 79 -1 0.0 -
99 Rattle Bag - 71 82 -11 0.0 -
99 Scent Master - 82 76 +6 2.5 -
99 Nordic Rebel - 81 81 ✓ Match 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