Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING FRIDAY 23 AUGUST MR 78 HANDICAP (Open)

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Line Horse
Guarding The Wall
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
5 / 11
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Great Melody         3    58.5    1    0.00     10.5  75    78           75    +0
2    Masked Vigilante     3    59.0    2    1.25     10.5  76    79           79    +3
3    Guarding The Wall    4    53.5    3    2.00     12.0  65    65           65    +0
4    Ella's Delight       2    58.5    4    2.75     7.0   75    85           85    +10
5    Irontail             4    53.5    5    4.00     12.0  65    65           65    +0
6    Thing Called Love    4    57.5    6    4.50     12.0  73    73           73    +0
7    Explosive Speed      2    57.5    7    4.75     7.0   73    83           83    +10
8    Pompei Warning       2    58.5    8    5.50     7.0   78    85           85    +7
9    Jp Two Thousand      3    52.0    9    7.75     10.5  61    65           65    +4
10   See You In A Bit     4    59.0    10   8.75     12.0  76    76           76    +0
99   Magic Prince         2    56.0    99   0.00     7.0   -     80           80    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Great Melody 75 79 75 +4 10.5 -
2 Masked Vigilante 76 78 79 -1 10.5 -
3 Guarding The Wall Line 65 67 65 +2 12.0
4 Ella's Delight 75 71 85 -14 7.0 -
5 Irontail 65 64 65 -1 12.0 -
6 Thing Called Love 73 69 73 -4 12.0 -
7 Explosive Speed 73 68 83 -15 7.0 -
8 Pompei Warning 78 75 85 -10 7.0 -
9 Jp Two Thousand 61 61 65 -4 10.5 -
10 See You In A Bit 76 67 76 -9 12.0 -
99 Magic Prince - 66 80 -14 7.0 -
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