Official NHA Assessment

Race 4: FOLLOW IN THE BOX SEAT PODCAST MR 68 HANDICAP (Open)

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Line Horse
Lightning Jimmy
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
5 / 7
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    Rhythm               2    60.0    1    0.00     5.0   68    76           68    +0
2    Lightning Jimmy      4    56.5    2    2.20     9.0   61    61           61    +0
3    Gorgeous Dude        4    54.5    3    3.40     9.0   57    57           57    +0
4    El Draque            5    59.0    4    4.00     0.0   66    84           84    +18
5    Mask On              3    60.0    5    5.20     7.5   68    71           71    +3
6    Cotton Ron           6    50.0    6    6.00     0.0   56    66           66    +10
7    Navajo Dancer        2    54.5    7    6.50     5.0   57    65           65    +8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rhythm 68 67 68 -1 5.0 -
2 Lightning Jimmy Line 61 48 61 -13 9.0
3 Gorgeous Dude 57 55 57 -2 9.0 -
4 El Draque 66 57 84 -27 0.0 -
5 Mask On 68 52 71 -19 7.5 -
6 Cotton Ron 56 59 66 -7 0.0 -
7 Navajo Dancer 57 56 65 -9 5.0 -
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