Official NHA Assessment

Race 5: GOLD CIRCLE RACING YOUTUBE CHANNEL MAIDEN PLATE (For all Maidens)

Back to Race
Line Horse
Ultimate Jewel
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
6 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Afropolitan          6    60.0    1    0.00     0.0   59    72           65    +6
2    Ultimate Jewel       5    59.0    2    3.70     0.0   71    71           71    +0
3    Cup Of Magic         3    60.0    3    5.80     6.0   60    60           60    +0
4    Valerian Night       3    59.0    4    8.00     6.0   -     58           58    +58
5    Whiz Bang            2    59.0    5    11.20    0.0   56    70           70    +14
6    Let Em Go            5    60.0    6    12.00    0.0   49    72           72    +23
7    Bombay Circus        4    60.0    7    14.00    3.0   51    66           66    +15
8    His Master's Voice   2    59.0    8    16.30    0.0   74    70           70    -4
99   Uncle Lucky          2    59.0    99   0.00     0.0   -     70           70    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Afropolitan 59 84 65 +19 0.0 -
2 Ultimate Jewel Line 71 80 71 +9 0.0
3 Cup Of Magic 60 58 60 -2 6.0 -
4 Valerian Night - 59 58 +1 6.0 -
5 Whiz Bang 56 52 70 -18 0.0 -
6 Let Em Go 49 57 72 -15 0.0 -
7 Bombay Circus 51 49 66 -17 3.0 -
8 His Master's Voice 74 69 70 -1 0.0 -
99 Uncle Lucky - 61 70 -9 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