Official NHA Assessment

Race 3: TELLYTRACK.COM MAIDEN PLATE (For all Maidens)

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Line Horse
Young Nelson
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
9 / 11
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    Young Nelson         3    58.0    1    0.00     6.0   68    68           68    +0
2    War Man              3    58.0    2    0.75     6.0   59    74           74    +15
3    Joe Harman           4    60.0    3    0.85     3.0   61    84           84    +23
4    Arctic Advance       3    58.0    4    3.35     6.0   67    71           71    +4
5    Dame Colleen         3    54.5    5    6.35     6.0   53    61           61    +8
6    Nussply              5    60.0    6    7.60     0.0   51    84           84    +33
7    Clo Clo              4    56.5    7    17.10    3.0   39    71           71    +32
8    Jean Paul            3    58.0    8    25.35    6.0   62    68           68    +6
9    Klaserie             3    54.5    9    35.85    6.0   53    61           61    +8
10   Linguee              4    60.0    10   57.60    3.0   59    78           78    +19
99   Raio                 4    56.0    99   0.00     3.0   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Young Nelson Line 68 62 68 -6 6.0
2 War Man 59 75 74 +1 6.0 -
3 Joe Harman 61 54 84 -30 3.0 -
4 Arctic Advance 67 58 71 -13 6.0 -
5 Dame Colleen 53 46 61 -15 6.0 -
6 Nussply 51 45 84 -39 0.0 -
7 Clo Clo 39 36 71 -35 3.0 -
8 Jean Paul 62 62 68 -6 6.0 -
9 Klaserie 53 57 61 -4 6.0 -
10 Linguee 59 59 78 -19 3.0 -
99 Raio - 48 70 -22 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