Official NHA Assessment

Race 4: WWW.TAB4RACING.COM MR 66 HANDICAP (Open)

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Line Horse
Fifth Of July
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
1 / 14
Within 2 points
Significant Diffs
8 / 14
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    Full Go              6    53.5    1    0.00     0.0   53    49           53    +0
2    Cerulean Dancer      2    56.5    2    0.10     0.0   67    55           57    -10
3    Zoombomber           2    57.0    3    0.40     0.0   63    61           61    -2
4    Fifth Of July        5    60.0    4    1.00     0.0   66    66           66    +0
5    Damova               3    52.0    5    1.25     1.5   58    47           48    -10
6    Flag Bearer          3    56.5    6    3.00     1.5   59    54           54    -5
7    Callaburn            2    61.0    7    5.25     0.0   71    64           64    -7
8    Summerland           5    53.5    8    5.50     0.0   53    49           49    -4
9    Have A Party         3    54.5    9    6.50     1.5   55    48           48    -7
10   Japanese Maple       4    59.5    10   6.75     0.5   73    60           63    -10
11   Guy Alexander        3    56.5    11   7.00     1.5   59    52           52    -7
12   Parker Getrix        4    59.5    12   8.00     0.5   65    60           60    -5
13   Whistledown          4    58.5    13   9.25     0.5   66    58           58    -8
14   Rainy Season         4    56.0    14   10.50    0.5   58    53           53    -5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Full Go 53 59 53 +6 0.0 -
2 Cerulean Dancer 67 71 57 +14 0.0 -
3 Zoombomber 63 60 61 -1 0.0 -
4 Fifth Of July Line 66 63 66 -3 0.0
5 Damova 58 85 48 +37 1.5 -
6 Flag Bearer 59 60 54 +6 1.5 -
7 Callaburn 71 52 64 -12 0.0 -
8 Summerland 53 45 49 -4 0.0 -
9 Have A Party 55 64 48 +16 1.5 -
10 Japanese Maple 73 56 63 -7 0.5 -
11 Guy Alexander 59 72 52 +20 1.5 -
12 Parker Getrix 65 56 60 -4 0.5 -
13 Whistledown 66 63 58 +5 0.5 -
14 Rainy Season 58 56 53 +3 0.5 -
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