Official NHA Assessment

Race 7: GREYVILLE CONVENTION CENTRE MR 75 HANDICAP (Open)

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Line Horse
Valiente
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
7 / 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    Chara Sands          3    58.0    1    0.00     2.5   74    74           74    +0
2    Valiente             5    53.5    2    1.10     0.0   70    70           70    +0
3    True Brit            3    52.0    3    1.90     2.5   59    62           62    +3
4    Bevoeterd            3    55.5    4    2.30     2.5   69    69           69    +0
5    Grey Ocean           4    56.0    5    3.10     0.0   67    75           75    +8
6    Sir Pom              4    60.0    6    3.40     0.0   78    83           83    +5
7    Mount Greylock       4    58.5    7    4.30     0.0   72    80           80    +8
8    One Too Many         3    59.5    8    4.70     2.5   77    77           77    +0
9    Silver Ducat         2    49.0    9    5.75     1.5   80    58           70    -10
10   Waya Yire            3    58.0    10   9.45     2.5   74    74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Chara Sands 74 70 74 -4 2.5 -
2 Valiente Line 70 75 70 +5 0.0
3 True Brit 59 55 62 -7 2.5 -
4 Bevoeterd 69 58 69 -11 2.5 -
5 Grey Ocean 67 61 75 -14 0.0 -
6 Sir Pom 78 57 83 -26 0.0 -
7 Mount Greylock 72 71 80 -9 0.0 -
8 One Too Many 77 79 77 +2 2.5 -
9 Silver Ducat 80 78 70 +8 1.5 -
10 Waya Yire 74 64 74 -10 2.5 -
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