Official NHA Assessment

Race 2: TAKE A BET WINA NUMBA NUMBA WORK RIDERS MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Oklahoma Twister
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
8 / 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    Phala Millions       4    60.0    1    0.00     3.5   72    66           66    -6
2    Trombettista         2    60.0    2    4.75     2.0   71    69           69    -2
3    Oklahoma Twister     4    60.0    3    6.50     3.5   66    66           66    +0
4    Bregardt             4    60.0    4    15.75    3.5   66    66           66    +0
5    Spy Story            3    57.0    5    16.00    3.0   -     61           61    +61
6    Paul Revere          3    57.0    6    19.50    3.0   -     61           61    +61
7    Trip To States       5    60.0    7    19.55    0.0   60    73           73    +13
8    Under The Rainbow    3    60.0    8    19.75    3.0   -     67           67    +67
9    Bompas               4    60.0    9    26.00    3.5   55    66           66    +11
10   The Real Deal        4    60.0    10   31.50    3.5   -     66           66    +66
11   Ringho               4    60.0    11   33.25    3.5   -     66           66    +66
12   Lake Kivu            3    60.0    12   99.99    3.0   -     67           67    +67
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Phala Millions 72 66 66 ✓ Match 3.5 -
2 Trombettista 71 63 69 -6 2.0 -
3 Oklahoma Twister Line 66 71 66 +5 3.5
4 Bregardt 66 52 66 -14 3.5 -
5 Spy Story - 66 61 +5 3.0 -
6 Paul Revere - 92 61 +31 3.0 -
7 Trip To States 60 63 73 -10 0.0 -
8 Under The Rainbow - 64 67 -3 3.0 -
9 Bompas 55 58 66 -8 3.5 -
10 The Real Deal - 50 66 -16 3.5 -
11 Ringho - 60 66 -6 3.5 -
12 Lake Kivu - 30 67 -37 3.0 -
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