Official NHA Assessment

Race 6: 4RACING.TV NOVICE HANDICAP (Maidens & 1 time winners)

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Line Horse
Golden Prospect
Reference for assessment
Exact Matches
2 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
7 / 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    Rattle Bag           6    52.0    1    0.00     0.0   63    71           63    +0
2    Golden Prospect      2    60.0    2    1.25     0.0   91    91           91    +0
3    Light Of Day         5    54.5    3    1.35     0.0   80    79           79    -1
4    Futurewolff          5    52.5    4    1.55     0.0   76    75           75    -1
5    Wind Sock            3    52.5    5    2.85     3.0   65    68           68    +3
6    Roll Over Redrover   4    54.0    6    3.65     1.5   78    73           73    -5
7    Gimme The Flame      5    51.0    7    4.25     0.0   76    70           70    -6
8    Eyjafjallajokull     2    57.5    8    7.00     0.0   86    82           82    -4
9    Bird In Space        2    52.5    9    9.75     0.0   76    72           72    -4
10   Noble Kingdom        3    52.5    10   10.65    3.0   72    66           66    -6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rattle Bag 63 71 63 +8 0.0 -
2 Golden Prospect Line 91 83 91 -8 0.0
3 Light Of Day 80 61 79 -18 0.0 -
4 Futurewolff 76 75 75 ✓ Match 0.0 -
5 Wind Sock 65 68 68 ✓ Match 3.0 -
6 Roll Over Redrover 78 79 73 +6 1.5 -
7 Gimme The Flame 76 50 70 -20 0.0 -
8 Eyjafjallajokull 86 86 82 +4 0.0 -
9 Bird In Space 76 66 72 -6 0.0 -
10 Noble Kingdom 72 57 66 -9 3.0 -
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