Official NHA Assessment

Race 8: GALLOP TV YOUTUBE CHANNEL CLASS 5 (Open. Benchmark at 60.0kg = 66)

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Line Horse
Cotton Ron
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
5 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Super Fast           5    58.0    1    0.00     0.0   70    62           62    -8
2    Cotton Ron           6    57.5    2    3.70     0.0   61    61           61    +0
3    Purple Powahouse     8    55.5    3    3.95     0.0   57    57           57    +0
4    Now I Got You        5    56.5    4    4.85     0.0   64    59           59    -5
5    Whereverilaymyhat    4    60.0    5    5.35     4.0   66    58           58    -8
6    El Draque            5    53.0    6    7.05     0.0   60    52           52    -8
7    Gorgeous Dude        4    53.5    7    7.45     4.0   53    45           45    -8
8    Lightning Jimmy      4    53.5    8    7.65     4.0   61    45           51    -10
9    Victor Rail          5    56.5    9    7.80     0.0   59    59           59    +0
10   Griffin Park         4    62.5    10   8.70     4.0   71    63           63    -8
11   Stevie Gee           5    59.5    11   9.20     0.0   65    65           65    +0
12   Teerex               4    55.0    12   12.50    4.0   56    48           48    -8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Super Fast 70 83 62 +21 0.0 -
2 Cotton Ron Line 61 59 61 -2 0.0
3 Purple Powahouse 57 55 57 -2 0.0 -
4 Now I Got You 64 67 59 +8 0.0 -
5 Whereverilaymyhat 66 68 58 +10 4.0 -
6 El Draque 60 57 52 +5 0.0 -
7 Gorgeous Dude 53 55 45 +10 4.0 -
8 Lightning Jimmy 61 48 51 -3 4.0 -
9 Victor Rail 59 61 59 +2 0.0 -
10 Griffin Park 71 58 63 -5 4.0 -
11 Stevie Gee 65 65 65 ✓ Match 0.0 -
12 Teerex 56 66 48 +18 4.0 -
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