Skip to:

OwnerView is growing. Help introduce others to ownership.
Visit the
New Site

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robertino Diodoro 106 230 2.17 69 35 32 30% 59.13% $1,221,471 $5,311 $11,523 0 3

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 1 1 1 0 0 0 0% 0% $0 $0 $0 0 0
Robertino Diodoro 192 561 2.92 128 107 74 22.82% 55.08% $4,128,650 $7,359 $21,503 2 9

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robertino Diodoro 179 438 2.45 110 67 57 25.11% 53.42% $3,730,708 $8,518 $20,842 1 7

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 3 6 2 1 0 0 16.67% 16.67% $6,244 $1,041 $2,081 0 0
Robertino Diodoro 304 785 2.58 150 141 107 19.11% 50.7% $5,867,506 $7,475 $19,301 1 6

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 6 25 4.17 1 3 0 4% 16% $24,265 $971 $4,044 0 0
Robertino Diodoro 339 894 2.64 191 152 104 21.36% 50% $6,800,660 $7,607 $20,061 1 11

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 2 3 1.5 0 0 0 0% 0% $518 $173 $259 0 0
Robertino Diodoro 292 904 3.1 223 178 108 24.67% 56.31% $7,496,024 $8,292 $25,671 3 9

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 7 20 2.86 3 0 0 15% 15% $58,268 $2,913 $8,324 0 0
Robertino Diodoro 311 1110 3.57 242 188 152 21.8% 52.43% $6,011,283 $5,416 $19,329 1 9

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 12 44 3.67 3 0 3 6.82% 13.64% $50,585 $1,150 $4,215 0 0
Robertino Diodoro 310 1043 3.36 257 182 183 24.64% 59.64% $5,763,032 $5,525 $18,590 0 7

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 17 74 4.35 2 3 12 2.7% 22.97% $71,148 $961 $4,185 0 0
Robertino Diodoro 321 1056 3.29 255 180 150 24.15% 55.4% $6,078,667 $5,756 $18,937 2 7

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 16 62 3.88 5 6 5 8.06% 25.81% $104,160 $1,680 $6,510 0 0
Robertino Diodoro 306 970 3.17 219 163 126 22.58% 52.37% $5,162,000 $5,322 $16,869 2 7

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 11 71 6.45 7 5 13 9.86% 35.21% $92,242 $1,299 $8,386 0 0
Robertino Diodoro 258 933 3.62 242 168 115 25.94% 56.27% $4,642,888 $4,976 $17,996 1 7

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 21 97 4.62 9 12 8 9.28% 29.9% $117,512 $1,211 $5,596 0 0
Robertino Diodoro 241 813 3.37 190 141 95 23.37% 52.4% $3,198,906 $3,935 $13,273 0 7

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 14 63 4.5 4 7 8 6.35% 30.16% $50,188 $797 $3,585 0 0
Robertino Diodoro 276 920 3.33 243 149 137 26.41% 57.5% $3,780,862 $4,110 $13,699 1 5

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 3 3 1 0 0 0 0% 0% $300 $100 $100 0 0
Robertino Diodoro 175 653 3.73 149 132 87 22.82% 56.36% $2,356,297 $3,608 $13,465 2 8

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robertino Diodoro 168 619 3.68 106 86 85 17.12% 44.75% $1,542,746 $2,492 $9,183 0 2

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 2 7 3.5 0 0 0 0% 0% $603 $86 $302 0 0
Robertino Diodoro 166 667 4.02 137 117 99 20.54% 52.92% $1,748,505 $2,621 $10,533 0 1

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robertino Diodoro 152 533 3.51 109 71 79 20.45% 48.59% $1,200,249 $2,252 $7,896 0 7

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robertino Diodoro 115 401 3.49 61 50 58 15.21% 42.14% $650,377 $1,622 $5,655 0 2

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robertino Diodoro 98 389 3.97 64 49 41 16.45% 39.59% $653,231 $1,679 $6,666 0 2

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robertino Diodoro 89 346 3.89 55 60 41 15.9% 45.09% $708,077 $2,046 $7,956 0 4

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robertino Diodoro 67 253 3.78 27 30 21 10.67% 30.83% $307,573 $1,216 $4,591 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 5 24 4.8 1 1 3 4.17% 20.83% $7,543 $314 $1,509 0 0
Robertino Diodoro 53 235 4.43 29 38 20 12.34% 37.02% $288,205 $1,226 $5,438 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 1 1 1 0 0 0 0% 0% $90 $90 $90 0 0
Robertino Diodoro 47 223 4.74 31 28 19 13.9% 34.98% $355,973 $1,596 $7,574 0 1

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robertino Diodoro 66 301 4.56 30 45 39 9.97% 37.87% $382,529 $1,271 $5,796 0 1

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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 1 1 1 0 0 0 0% 0% $110 $110 $110 0 0
Robertino Diodoro 52 244 4.69 29 42 34 11.89% 43.03% $335,720 $1,376 $6,456 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 8 36 4.5 2 3 4 5.56% 25% $28,058 $779 $3,507 0 0
Robertino Diodoro 44 227 5.16 33 25 21 14.54% 34.8% $248,130 $1,093 $5,639 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robertino Diodoro 38 182 4.79 28 25 23 15.38% 41.76% $149,680 $822 $3,939 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 5 39 7.8 6 2 8 15.38% 41.03% $33,902 $869 $6,780 0 0
Robertino Diodoro 27 149 5.52 14 21 14 9.4% 32.89% $75,393 $506 $2,792 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 4 5 1.25 0 0 0 0% 0% $354 $71 $89 0 0
Robertino Diodoro 35 161 4.6 13 20 22 8.07% 34.16% $91,277 $567 $2,608 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 3 11 3.67 1 0 1 9.09% 18.18% $4,892 $445 $1,631 0 0
Robertino Diodoro 18 76 4.22 9 8 9 11.84% 34.21% $47,126 $620 $2,618 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 13 35 2.69 7 1 4 20% 34.29% $41,109 $1,175 $3,162 0 0
Robertino Diodoro 9 43 4.78 5 7 4 11.63% 37.21% $27,627 $642 $3,070 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Miles H. Heinen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robertino Diodoro 4 17 4.25 3 3 3 17.65% 52.94% $14,304 $841 $3,576 0 0