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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
David G. Donk 52 214 4.12 16 25 26 7.48% 31.31% $1,398,240 $6,534 $26,889 0 0
Efren Loza, Jr. 4 6 1.5 3 0 0 50% 50% $39,130 $6,522 $9,783 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
David G. Donk 68 290 4.26 21 30 33 7.24% 28.97% $1,927,385 $6,646 $28,344 0 2
Efren Loza, Jr. 8 21 2.63 2 3 3 9.52% 38.1% $56,265 $2,679 $7,033 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
David G. Donk 62 224 3.61 28 30 24 12.5% 36.61% $2,115,778 $9,445 $34,125 0 3
Efren Loza, Jr. 7 19 2.71 5 2 1 26.32% 42.11% $69,780 $3,673 $9,969 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
David G. Donk 68 298 4.38 30 42 34 10.07% 35.57% $2,354,928 $7,902 $34,631 0 2
Efren Loza, Jr. 7 23 3.29 7 5 3 30.43% 65.22% $145,270 $6,316 $20,753 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
David G. Donk 65 294 4.52 21 29 41 7.14% 30.95% $1,512,088 $5,143 $23,263 0 0
Efren Loza, Jr. 12 30 2.5 6 2 5 20% 43.33% $148,062 $4,935 $12,339 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
David G. Donk 60 286 4.77 34 45 53 11.89% 46.15% $2,435,461 $8,516 $40,591 0 1
Efren Loza, Jr. 20 47 2.35 13 5 11 27.66% 61.7% $337,637 $7,184 $16,882 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
David G. Donk 63 321 5.1 34 34 41 10.59% 33.96% $2,167,533 $6,752 $34,405 0 2
Efren Loza, Jr. 23 70 3.04 20 12 9 28.57% 58.57% $1,573,134 $22,473 $68,397 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
David G. Donk 56 321 5.73 36 41 47 11.21% 38.63% $1,958,337 $6,101 $34,970 0 0
Efren Loza, Jr. 43 147 3.42 46 22 24 31.29% 62.59% $1,050,866 $7,149 $24,439 2 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
David G. Donk 58 251 4.33 26 30 30 10.36% 34.26% $1,838,710 $7,326 $31,702 0 2
Efren Loza, Jr. 47 136 2.89 41 26 17 30.15% 61.76% $921,765 $6,778 $19,612 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
David G. Donk 49 238 4.86 28 29 34 11.76% 38.24% $1,971,248 $8,283 $40,230 1 4
Efren Loza, Jr. 44 122 2.77 36 29 13 29.51% 63.93% $770,572 $6,316 $17,513 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
David G. Donk 41 202 4.93 26 27 23 12.87% 37.62% $1,654,500 $8,191 $40,354 0 3
Efren Loza, Jr. 38 128 3.37 41 21 17 32.03% 61.72% $661,781 $5,170 $17,415 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
David G. Donk 30 118 3.93 14 14 16 11.86% 37.29% $1,064,336 $9,020 $35,478 1 2
Efren Loza, Jr. 11 21 1.91 6 3 4 28.57% 61.9% $78,965 $3,760 $7,179 0 0