Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING TUESDAY 17 JANUARY MR 72 HANDICAP (Open)

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Line Horse
Defender Of Rights
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
6 / 12
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    Pinch Hit            2    59.0    1    0.00     3.5   77    73           77    +0
2    Defender Of Rights   3    57.5    2    1.25     5.0   67    67           67    +0
3    Written In Stone     9    53.5    3    3.50     0.0   64    69           69    +5
4    Great Times          3    57.0    4    3.75     5.0   66    66           66    +0
5    Back To Basics       3    55.0    5    5.25     5.0   62    62           62    +0
6    Meteoric             3    60.0    6    6.00     5.0   72    72           72    +0
7    Tillieangus          5    59.0    7    7.25     0.0   70    80           80    +10
8    Treaty               2    51.0    8    7.30     3.5   66    57           57    -9
9    Rattle Bag           6    56.5    9    7.35     0.0   65    75           75    +10
10   Westwing Belter      7    52.5    10   12.00    0.0   57    67           67    +10
11   Lizado               3    52.5    11   13.00    5.0   55    57           57    +2
99   Cool Winter          2    60.5    99   0.00     3.5   -     76           76    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pinch Hit 77 74 77 -3 3.5 -
2 Defender Of Rights Line 67 67 67 ✓ Match 5.0
3 Written In Stone 64 67 69 -2 0.0 -
4 Great Times 66 54 66 -12 5.0 -
5 Back To Basics 62 72 62 +10 5.0 -
6 Meteoric 72 76 72 +4 5.0 -
7 Tillieangus 70 65 80 -15 0.0 -
8 Treaty 66 48 57 -9 3.5 -
9 Rattle Bag 65 71 75 -4 0.0 -
10 Westwing Belter 57 54 67 -13 0.0 -
11 Lizado 55 42 57 -15 5.0 -
99 Cool Winter - 78 76 +2 3.5 -
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