Official NHA Assessment

Race 4: GALLOP FORM MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Promise Of Fire
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
3 / 14
Within 2 points
Significant Diffs
9 / 14
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    Promise Of Fire      3    60.0    1    0.00     1.0   69    69           69    +0
2    Dee Day              4    56.0    2    1.40     0.5   57    65           65    +8
3    Harpa                2    56.0    3    4.40     0.0   -     63           63    +63
4    Style Icon           4    56.0    4    4.70     0.5   46    62           62    +16
5    Echo                 3    56.0    5    5.50     1.0   72    61           62    -10
6    Takatalvi            3    60.0    6    6.30     1.0   65    69           69    +4
7    Skipper O'Malley     3    60.0    7    7.00     1.0   66    69           69    +3
8    Anemie               2    56.0    8    7.20     0.0   -     63           63    +63
9    Winter Glade         3    60.0    9    8.10     1.0   48    69           69    +21
10   World Chorus         2    56.0    10   8.50     0.0   -     63           63    +63
11   Lightinthedarkness   3    56.0    11   9.10     1.0   63    61           61    -2
12   Swifty Linn          3    60.0    12   18.00    1.0   -     69           69    +69
99   Sheezarocket         2    58.5    99   0.00     0.0   -     68           68    +0
99   Eruption Inthe Sky   2    56.0    99   0.00     0.0   -     63           63    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Promise Of Fire Line 69 69 69 ✓ Match 1.0
2 Dee Day 57 53 65 -12 0.5 -
3 Harpa - 74 63 +11 0.0 -
4 Style Icon 46 54 62 -8 0.5 -
5 Echo 72 67 62 +5 1.0 -
6 Takatalvi 65 64 69 -5 1.0 -
7 Skipper O'Malley 66 62 69 -7 1.0 -
8 Anemie - 61 63 -2 0.0 -
9 Winter Glade 48 49 69 -20 1.0 -
10 World Chorus - 56 63 -7 0.0 -
11 Lightinthedarkness 63 59 61 -2 1.0 -
12 Swifty Linn - 44 69 -25 1.0 -
99 Sheezarocket - 62 68 -6 0.0 -
99 Eruption Inthe Sky - - 63 -63 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