Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING THURSDAY 20 JANUARY CLASSIFIED STAKES (For horses with nett rating of 71 and below)

Line Horse
Dark Travel
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
12 / 13
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    Speechmaker          5    52.0    1    0.00     0.0   58    61           61    +3
2    Grindelwald          6    51.5    2    0.75     0.0   55    64           64    +9
3    Dark Travel          4    56.0    3    2.75     2.5   66    66           66    +0
4    Naval Guard          4    58.0    4    3.25     2.5   67    70           70    +3
5    Light Of The Moon    3    54.0    5    4.00     5.0   71    56           61    -10
6    Rose Willow          4    52.0    6    4.75     2.5   59    56           56    -3
7    Mike The Pilot       3    54.0    7    4.80     5.0   66    55           56    -10
8    Timbavati River      3    60.0    8    5.25     5.0   78    67           68    -10
9    Ablueazure           3    58.0    9    6.00     5.0   77    63           67    -10
10   Theroseofbecharre    3    50.0    10   7.75     5.0   70    47           60    -10
11   Kapama               6    52.0    11   8.25     0.0   56    61           61    +5
12   In The Game          7    54.0    12   8.75     0.0   59    65           65    +6
99   Tallinn              5    58.0    99   0.00     0.0   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Speechmaker 58 61 61 ✓ Match 0.0 -
2 Grindelwald 55 70 64 +6 0.0 -
3 Dark Travel Line 66 72 66 +6 2.5
4 Naval Guard 67 93 70 +23 2.5 -
5 Light Of The Moon 71 107 61 +46 5.0 -
6 Rose Willow 59 48 56 -8 2.5 -
7 Mike The Pilot 66 50 56 -6 5.0 -
8 Timbavati River 78 79 68 +11 5.0 -
9 Ablueazure 77 76 67 +9 5.0 -
10 Theroseofbecharre 70 66 60 +6 5.0 -
11 Kapama 56 51 61 -10 0.0 -
12 In The Game 59 54 65 -11 0.0 -
99 Tallinn - 63 73 -10 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