Official NHA Assessment

Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN HANDICAP (For Maidens with 3 or more runs.R15000 Win bonus ROA Members)

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Line Horse
Captain Jim
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
2 / 8
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    Sacambaya            2    60.0    1    0.00     0.0   74    75           74    +0
2    Summer Shade         4    53.0    2    0.50     0.5   60    65           65    +5
3    Captain Jim          3    52.0    3    1.50     2.0   58    58           58    +0
4    Damascodoro          3    56.0    4    4.25     2.0   66    64           64    -2
5    Oklahoma Twister     4    57.5    5    6.00     0.5   69    69           69    +0
6    Pomo Clapper         2    58.5    6    6.50     0.0   71    72           72    +1
7    Ambitious Lady       3    58.0    7    11.50    2.0   70    67           67    -3
8    Silver Seven         3    52.0    8    27.50    2.0   20    55           55    +35
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sacambaya 74 72 74 -2 0.0 -
2 Summer Shade 60 52 65 -13 0.5 -
3 Captain Jim Line 58 54 58 -4 2.0
4 Damascodoro 66 59 64 -5 2.0 -
5 Oklahoma Twister 69 71 69 +2 0.5 -
6 Pomo Clapper 71 68 72 -4 0.0 -
7 Ambitious Lady 70 62 67 -5 2.0 -
8 Silver Seven 20 38 55 -17 2.0 -
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