Official NHA Assessment

Race 6: TRACK & BALL GAMING CLASSIFIED STAKES (For horses with nett rating of 74 and below)

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Line Horse
Grey Ocean
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
4 / 10
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    Hope Is Power        3    60.0    1    0.00     3.0   74    72           72    -2
2    Purple Operator      3    61.5    2    0.80     3.0   74    75           75    +1
3    Grande Lupo          2    58.5    3    0.90     2.0   72    71           71    -1
4    Grey Ocean           4    55.5    4    3.90     3.5   62    62           62    +0
5    Red Magician         3    58.5    5    3.95     3.0   67    69           69    +2
6    Senor Garcia         3    55.5    6    4.10     3.0   61    63           63    +2
7    Grecia               3    53.0    7    5.20     3.0   60    58           58    -2
8    Joshua Hotsnake      3    58.5    8    5.95     3.0   68    69           69    +1
9    Geronimo             4    55.5    9    7.75     3.5   61    62           62    +1
99   We All Chomies       5    49.5    99   0.00     0.0   -     57           57    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Hope Is Power 74 80 72 +8 3.0 -
2 Purple Operator 74 74 75 -1 3.0 -
3 Grande Lupo 72 62 71 -9 2.0 -
4 Grey Ocean Line 62 61 62 -1 3.5
5 Red Magician 67 49 69 -20 3.0 -
6 Senor Garcia 61 67 63 +4 3.0 -
7 Grecia 60 53 58 -5 3.0 -
8 Joshua Hotsnake 68 67 69 -2 3.0 -
9 Geronimo 61 50 62 -12 3.5 -
99 We All Chomies - 54 57 -3 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