Official NHA Assessment

Race 3: FOLLOW IN THE BOX SEAT PODCAST MR 83 HANDICAP (Open)

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Line Horse
Arumugam
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
7 / 11
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    Decorated            4    59.0    1    0.00     2.5   81    79           81    +0
2    Arumugam             6    54.5    2    0.70     0.0   82    82           82    +0
3    Galway               6    58.5    3    1.20     0.0   83    89           89    +6
4    Run To Denmark       6    60.5    4    2.25     0.0   84    92           92    +8
5    Ibutho               7    59.0    5    2.55     0.0   81    88           88    +7
6    Have A Go Jo         4    57.0    6    4.05     2.5   77    77           77    +0
7    Mystery Boy          4    58.5    7    4.55     2.5   80    79           79    -1
8    Twice Golden         5    50.0    8    5.25     0.0   71    66           66    -5
9    Querari's Cowboy     5    54.0    9    5.45     0.0   71    74           74    +3
99   Purple Persuasion    5    59.5    99   0.00     0.0   -     85           85    +0
99   Jacqueline           6    59.0    99   0.00     0.0   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Decorated 81 96 81 +15 2.5 -
2 Arumugam Line 82 74 82 -8 0.0
3 Galway 83 74 89 -15 0.0 -
4 Run To Denmark 84 84 92 -8 0.0 -
5 Ibutho 81 83 88 -5 0.0 -
6 Have A Go Jo 77 70 77 -7 2.5 -
7 Mystery Boy 80 80 79 +1 2.5 -
8 Twice Golden 71 84 66 +18 0.0 -
9 Querari's Cowboy 71 62 74 -12 0.0 -
99 Purple Persuasion - 82 85 -3 0.0 -
99 Jacqueline - 83 84 -1 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