Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING FRIDAY 18 NOVEMBER CLASSIFIED STAKES (For horses with nett rating of 71 and below)

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Line Horse
Bold Strike
Reference for assessment
Exact Matches
2 / 13
Calculated = Official
Close Matches
4 / 13
Within 2 points
Significant Diffs
6 / 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    Dammi                2    54.0    1    0.00     0.0   72    55           55    -17
2    Flinders Range       3    56.0    2    0.25     7.0   61    45           51    -10
3    Opera Swing          4    54.0    3    0.75     4.0   62    51           52    -10
4    Ivalo's Prince       5    60.0    4    0.80     0.0   71    71           71    +0
5    Bold Strike          5    60.0    5    1.30     0.0   70    70           70    +0
6    Meeneera             4    56.0    6    1.55     4.0   66    54           56    -10
7    Aspiringtoreign      3    56.0    7    2.05     7.0   61    48           51    -10
8    Essos                4    56.5    8    2.30     4.0   67    54           57    -10
9    Tartan Dancer        5    50.0    9    9.55     0.0   55    47           47    -8
10   Purple Frontier      4    54.0    10   17.05    4.0   56    47           47    -9
11   Bit Of Fun           4    56.0    11   17.80    4.0   61    51           51    -10
12   Stateofusa           3    52.0    12   45.80    7.0   50    37           40    -10
99   Humble Tune          4    60.0    99   0.00     4.0   -     59           59    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dammi 72 55 55 ✓ Match 0.0 -
2 Flinders Range 61 71 51 +20 7.0 -
3 Opera Swing 62 82 52 +30 4.0 -
4 Ivalo's Prince 71 62 71 -9 0.0 -
5 Bold Strike Line 70 65 70 -5 0.0
6 Meeneera 66 52 56 -4 4.0 -
7 Aspiringtoreign 61 61 51 +10 7.0 -
8 Essos 67 65 57 +8 4.0 -
9 Tartan Dancer 55 47 47 ✓ Match 0.0 -
10 Purple Frontier 56 51 47 +4 4.0 -
11 Bit Of Fun 61 53 51 +2 4.0 -
12 Stateofusa 50 50 40 +10 7.0 -
99 Humble Tune - 58 59 -1 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