Official NHA Assessment

Race 2: JOIN THE RACECOAST TURF CLUB MAIDEN PLATE (For all Maidens)

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Line Horse
Mercenary
Reference for assessment
Exact Matches
2 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
7 / 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    Prairie Dawn         3    59.0    1    0.00     5.0   78    74           74    -4
2    Bonelli              2    59.0    2    0.40     0.0   75    89           89    +14
3    Mercenary            3    59.0    3    1.15     5.0   78    78           78    +0
4    Nomore Bullets       2    59.0    4    2.65     0.0   69    86           86    +17
5    From The Get Go      3    59.0    5    6.40     5.0   -     74           74    +74
6    Sendai               3    57.5    6    6.80     5.0   82    71           72    -10
7    Sag Harbor           3    60.0    7    9.05     5.0   66    76           76    +10
8    Wonderful Tonight    2    59.0    8    11.30    0.0   74    84           84    +10
9    Seafarer             3    59.0    9    11.50    5.0   73    74           74    +1
10   Montessori           3    59.0    10   11.80    5.0   79    74           74    -5
11   Sixtyzero            3    59.0    11   13.55    5.0   72    74           74    +2
99   Zagreb               3    59.0    99   0.00     5.0   -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Prairie Dawn 78 89 74 +15 5.0 -
2 Bonelli 75 83 89 -6 0.0 -
3 Mercenary Line 78 78 78 ✓ Match 5.0
4 Nomore Bullets 69 73 86 -13 0.0 -
5 From The Get Go - 70 74 -4 5.0 -
6 Sendai 82 78 72 +6 5.0 -
7 Sag Harbor 66 64 76 -12 5.0 -
8 Wonderful Tonight 74 72 84 -12 0.0 -
9 Seafarer 73 69 74 -5 5.0 -
10 Montessori 79 74 74 ✓ Match 5.0 -
11 Sixtyzero 72 66 74 -8 5.0 -
99 Zagreb - 78 74 +4 5.0 -
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