Skip to:

Trainer Comparison

Statistics by Year:
Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Allen Iwinski 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Katherine S. Neilson 11 14 1.27 0 1 5 0% 42.86% $18,300 $1,307 $1,664 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 2 4 2 0 0 1 0% 25% $12,340 $3,085 $6,170 0 0
Allen Iwinski 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Katherine S. Neilson 19 64 3.37 10 12 14 15.63% 56.25% $366,375 $5,725 $19,283 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Allen Iwinski 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Katherine S. Neilson 20 65 3.25 4 9 11 6.15% 36.92% $146,150 $2,248 $7,308 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Allen Iwinski 6 23 3.83 1 11 5 4.35% 73.91% $123,260 $5,359 $20,543 0 0
Katherine S. Neilson 20 57 2.85 8 9 7 14.04% 42.11% $135,130 $2,371 $6,757 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 3 17 5.67 0 3 1 0% 23.53% $7,718 $454 $2,573 0 0
Allen Iwinski 7 44 6.29 4 10 7 9.09% 47.73% $166,380 $3,781 $23,769 0 0
Katherine S. Neilson 18 45 2.5 2 5 5 4.44% 26.67% $50,599 $1,124 $2,811 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 2 2 1 0 1 1 0% 100% $3,400 $1,700 $1,700 0 0
Allen Iwinski 13 52 4 3 7 5 5.77% 28.85% $131,180 $2,523 $10,091 0 0
Katherine S. Neilson 23 69 3 8 6 10 11.59% 34.78% $218,750 $3,170 $9,511 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 3 6 2 1 1 1 16.67% 50% $10,754 $1,792 $3,585 0 0
Allen Iwinski 20 58 2.9 8 8 7 13.79% 39.66% $214,980 $3,707 $10,749 0 0
Katherine S. Neilson 19 93 4.89 9 14 16 9.68% 41.94% $270,448 $2,908 $14,234 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 3 14 4.67 1 3 2 7.14% 42.86% $14,342 $1,024 $4,781 0 0
Allen Iwinski 14 76 5.43 12 7 8 15.79% 35.53% $250,248 $3,293 $17,875 0 0
Katherine S. Neilson 22 98 4.45 9 12 11 9.18% 32.65% $173,875 $1,774 $7,903 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 4 8 2 0 1 1 0% 25% $2,444 $306 $611 0 0
Allen Iwinski 14 72 5.14 14 15 12 19.44% 56.94% $307,969 $4,277 $21,998 0 0
Katherine S. Neilson 20 76 3.8 4 11 14 5.26% 38.16% $138,077 $1,817 $6,904 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 5 14 2.8 0 4 3 0% 50% $12,072 $862 $2,414 0 0
Allen Iwinski 16 83 5.19 7 15 9 8.43% 37.35% $227,878 $2,746 $14,242 0 0
Katherine S. Neilson 19 64 3.37 4 9 4 6.25% 26.56% $112,971 $1,765 $5,946 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 17 50 2.94 4 9 4 8% 34% $65,758 $1,315 $3,868 0 0
Allen Iwinski 21 68 3.24 8 9 10 11.76% 39.71% $285,290 $4,195 $13,585 0 0
Katherine S. Neilson 18 74 4.11 6 14 10 8.11% 40.54% $136,613 $1,846 $7,590 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 17 64 3.76 7 15 8 10.94% 46.88% $104,222 $1,628 $6,131 0 0
Allen Iwinski 32 90 2.81 9 7 9 10% 27.78% $337,395 $3,749 $10,544 0 0
Katherine S. Neilson 16 55 3.44 2 6 10 3.64% 32.73% $59,300 $1,078 $3,706 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 10 18 1.8 0 2 1 0% 16.67% $8,600 $478 $860 0 0
Allen Iwinski 42 141 3.36 26 12 17 18.44% 39.01% $1,196,038 $8,483 $28,477 1 8
Katherine S. Neilson 15 44 2.93 3 2 4 6.82% 20.45% $56,925 $1,294 $3,795 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 12 28 2.33 1 1 2 3.57% 14.29% $18,080 $646 $1,507 0 0
Allen Iwinski 55 192 3.49 29 20 18 15.1% 34.9% $1,133,331 $5,903 $20,606 2 5
Katherine S. Neilson 16 83 5.19 5 10 9 6.02% 28.92% $99,364 $1,197 $6,210 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 16 41 2.56 5 3 2 12.2% 24.39% $78,951 $1,926 $4,934 0 0
Allen Iwinski 42 193 4.6 30 31 28 15.54% 46.11% $958,884 $4,968 $22,831 0 0
Katherine S. Neilson 18 72 4 9 4 7 12.5% 27.78% $145,574 $2,022 $8,087 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 14 61 4.36 13 11 8 21.31% 52.46% $196,156 $3,216 $14,011 0 0
Allen Iwinski 45 157 3.49 29 28 17 18.47% 47.13% $1,027,078 $6,542 $22,824 0 0
Katherine S. Neilson 19 68 3.58 6 2 9 8.82% 25% $77,706 $1,143 $4,090 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 12 47 3.92 5 9 6 10.64% 42.55% $129,303 $2,751 $10,775 0 0
Allen Iwinski 40 124 3.1 17 15 17 13.71% 39.52% $646,435 $5,213 $16,161 0 0
Katherine S. Neilson 23 93 4.04 9 1 14 9.68% 25.81% $141,100 $1,517 $6,135 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 14 78 5.57 14 7 4 17.95% 32.05% $383,167 $4,912 $27,369 0 3
Allen Iwinski 1 1 1 0 0 0 0% 0% $120 $120 $120 0 0
Katherine S. Neilson 22 74 3.36 13 8 10 17.57% 41.89% $183,326 $2,477 $8,333 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 12 40 3.33 9 1 6 22.5% 40% $133,305 $3,333 $11,109 0 0
Allen Iwinski 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Katherine S. Neilson 29 102 3.52 9 12 15 8.82% 35.29% $142,541 $1,397 $4,915 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Armando Quintanilla, Jr. 9 37 4.11 5 7 6 13.51% 48.65% $114,308 $3,089 $12,701 0 0
Allen Iwinski 55 143 2.6 27 14 21 18.88% 43.36% $707,944 $4,951 $12,872 0 1
Katherine S. Neilson 33 147 4.45 17 13 18 11.56% 32.65% $306,164 $2,083 $9,278 1 0