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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
Katherine Ritvo 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Tena Birdwell 24 81 3.38 7 10 11 8.64% 34.57% $181,836 $2,245 $7,577 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
Katherine Ritvo 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Tena Birdwell 30 107 3.57 10 13 15 9.35% 35.51% $166,308 $1,554 $5,544 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
Katherine Ritvo 11 22 2 3 2 2 13.64% 31.82% $85,860 $3,903 $7,805 0 0
Tena Birdwell 28 101 3.61 11 14 16 10.89% 40.59% $191,138 $1,892 $6,826 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
Katherine Ritvo 9 64 7.11 7 8 11 10.94% 40.63% $183,760 $2,871 $20,418 0 0
Tena Birdwell 14 31 2.21 7 6 2 22.58% 48.39% $66,227 $2,136 $4,731 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
Katherine Ritvo 12 49 4.08 2 7 5 4.08% 28.57% $122,610 $2,502 $10,218 0 0
Tena Birdwell 13 63 4.85 6 9 12 9.52% 42.86% $93,414 $1,483 $7,186 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
Katherine Ritvo 32 98 3.06 8 15 12 8.16% 35.71% $389,541 $3,975 $12,173 0 0
Tena Birdwell 12 55 4.58 4 6 12 7.27% 40% $56,365 $1,025 $4,697 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
Katherine Ritvo 27 106 3.93 18 12 17 16.98% 44.34% $623,090 $5,878 $23,077 0 2
Tena Birdwell 18 61 3.39 8 6 14 13.11% 45.9% $66,397 $1,088 $3,689 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
Katherine Ritvo 31 116 3.74 10 16 17 8.62% 37.07% $380,109 $3,277 $12,262 0 0
Tena Birdwell 4 7 1.75 4 2 0 57.14% 85.71% $17,739 $2,534 $4,435 0 0