Official NHA Assessment

Race 7: TAB 4RACING APP NOVICE HANDICAP (Maidens & 1 time winners)

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Line Horse
High Roller
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    Vesuvio              5    52.5    1    0.00     0.0   75    71           70    -5
2    High Roller          2    56.5    2    1.25     0.0   83    83           83    +0
3    Houston              3    59.0    3    1.50     7.0   88    73           78    -10
4    Toto's Dream         3    54.5    4    5.00     7.0   65    61           61    -4
5    Permesso Avanti      3    60.0    5    6.80     7.0   76    72           72    -4
6    Letha                3    55.0    6    7.30     7.0   66    62           62    -4
7    Morethanafeeling     2    56.0    7    28.55    0.0   82    78           78    -4
8    Just A Memory        3    55.5    8    99.99    7.0   67    63           63    -4
99   Coldhardstare        2    52.5    99   0.00     0.0   -     71           71    +0
99   Ignatius             2    58.0    99   0.00     0.0   -     82           82    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Vesuvio 75 85 70 +15 0.0 -
2 High Roller Line 83 86 83 +3 0.0
3 Houston 88 69 78 -9 7.0 -
4 Toto's Dream 65 63 61 +2 7.0 -
5 Permesso Avanti 76 70 72 -2 7.0 -
6 Letha 66 66 62 +4 7.0 -
7 Morethanafeeling 82 77 78 -1 0.0 -
8 Just A Memory 67 67 63 +4 7.0 -
99 Coldhardstare - 94 71 +23 0.0 -
99 Ignatius - 70 82 -12 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