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Koji Konishi

Age: 15 years old
Age Category: 15-16
Team: Beach Cities Alpha | Southern California Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Beach Cities Alpha Southern California Swimming Western Zone USA
Free 500 Y 5:11.03 15 12/12/2025 A AA: 5:02.69 (+8.34s | 2.7%) 7 167 635 1,000+
50 Free
28.76
28.76
100 Free
30.29
59.05
100 Free
59.05
150 Free
31.50
1:30.55
200 Free
32.14
2:02.69
100 Free
1:03.64
250 Free
31.92
2:34.61
300 Free
30.84
3:05.45
100 Free
1:02.76
350 Free
30.81
3:36.26
400 Free
32.05
4:08.31
100 Free
1:02.86
450 Free
32.14
4:40.45
500 Free
30.58
5:11.03
100 Free
1:02.72
Free 1650 Y 18:26.11 15 02/13/2026 BB A: 18:22.79 (+3.32s | 0.3%) 3 89 381 1,000+
50 Free
29.99
29.99
100 Free
32.52
1:02.51
100 Free
1:02.51
150 Free
33.07
1:35.58
200 Free
33.15
2:08.73
100 Free
1:06.22
250 Free
33.75
2:42.48
300 Free
33.63
3:16.11
100 Free
1:07.38
350 Free
33.59
3:49.70
400 Free
33.76
4:23.46
100 Free
1:07.35
450 Free
33.22
4:56.68
500 Free
33.49
5:30.17
100 Free
1:06.71
550 Free
33.47
6:03.64
600 Free
33.85
6:37.49
100 Free
1:07.32
650 Free
33.63
7:11.12
700 Free
33.34
7:44.46
100 Free
1:06.97
750 Free
33.59
8:18.05
800 Free
33.83
8:51.88
100 Free
1:07.42
850 Free
33.90
9:25.78
900 Free
34.09
9:59.87
100 Free
1:07.99
950 Free
34.05
10:33.92
1000 Free
34.51
11:08.43
100 Free
1:08.56
1050 Free
33.96
11:42.39
1100 Free
33.05
12:15.44
100 Free
1:07.01
1150 Free
33.92
12:49.36
1200 Free
34.55
13:23.91
100 Free
1:08.47
1250 Free
34.57
13:58.48
1300 Free
33.92
14:32.40
100 Free
1:08.49
1350 Free
34.45
15:06.86
1400 Free
33.97
15:40.83
100 Free
1:08.42
1450 Free
33.30
16:14.13
1500 Free
33.52
16:47.65
100 Free
1:06.82
1550 Free
33.40
17:21.05
1600 Free
33.42
17:54.47
100 Free
1:06.82
1650 Free
31.64
18:26.11
Back 50 Y 33.68 12 12/09/2022 12 253 1,000+ 1,000+
Back 100 Y 1:00.70 15 12/12/2025 BB A: 57.89 (+2.81s | 4.6%) 12 175 892 1,000+
50 Back
29.61
29.61
100 Back
31.09
1:00.70
100 Back
1:00.70
Back 200 Y 2:19.97 13 12/08/2023 B BB: 2:17.09 (+2.88s | 2.1%) 16 232 1,000+ 1,000+
50 Back
33.06
33.06
100 Back
35.47
1:08.53
100 Back
1:08.53
150 Back
35.98
1:44.51
200 Back
35.46
2:19.97
100 Back
1:11.44
Breast 50 Y 38.41 12 12/09/2022 11 203 1,000+ 1,000+
Breast 100 Y 1:12.43 14 12/13/2024 B BB: 1:11.39 (+1.04s | 1.4%) 14 236 1,000+ 1,000+
50 Breast
34.36
34.36
100 Breast
38.07
1:12.43
100 Breast
1:12.43
Fly 50 Y 32.55 12 12/09/2022 15 229 1,000+ 1,000+
Fly 100 Y 56.83 15 12/12/2025 A AA: 55.19 (+1.64s | 2.9%) 13 156 634 1,000+
50 Fly
26.57
26.57
100 Fly
30.26
56.83
100 Fly
56.83
Fly 200 Y 2:12.73 14 12/13/2024 BB A: 2:08.79 (+3.94s | 3.0%) 8 135 532 1,000+
50 Fly
29.53
29.53
100 Fly
31.83
1:01.36
100 Fly
1:01.36
150 Fly
35.12
1:36.48
200 Fly
36.25
2:12.73
100 Fly
1:11.37
IM 200 Y 2:12.06 15 12/12/2025 BB A: 2:09.39 (+2.67s | 2.0%) 13 220 924 1,000+
50 Fly
27.71
27.71
100 Back
32.69
1:00.40
100 IM
1:00.40
150 Breast
41.03
1:41.43
200 Free
30.63
2:12.06
100 IM
1:11.66
IM 400 Y 4:35.50 15 02/13/2026 A AA: 4:24.69 (+10.81s | 3.9%) 9 135 482 1,000+
50 Fly
28.15
28.15
100 Fly
31.46
59.61
100 Fly
59.61
150 Back
36.34
1:35.95
200 Back
34.14
2:10.09
100 Back
1:10.48
250 Breast
39.88
2:49.97
300 Breast
41.11
3:31.08
100 Breast
1:20.99
350 Free
32.48
4:03.56
400 Free
31.94
4:35.50
100 Free
1:04.42

Long course distance

Event Time Age Date Standard Next Standard Beach Cities Alpha Southern California Swimming Western Zone USA
Free 400 M 4:46.42 14 06/12/2025 BB A: 4:46.39 (+0.03s | 0.0%) 9 161 538 1,000+
Free 800 M 9:44.74 15 07/24/2025 A AA: 9:29.99 (+14.75s | 2.5%) 5 102 278 609
50 Free
32.50
32.50
100 Free
35.77
1:08.28
100 Free
1:08.28
150 Free
36.33
1:44.61
200 Free
36.69
2:21.30
100 Free
1:13.02
250 Free
36.46
2:57.76
300 Free
36.40
3:34.16
100 Free
1:12.86
350 Free
37.54
4:11.70
400 Free
37.06
4:48.76
100 Free
1:14.60
450 Free
37.52
5:26.28
500 Free
37.40
6:03.68
100 Free
1:14.92
550 Free
38.07
6:41.75
600 Free
36.99
7:18.74
100 Free
1:15.06
650 Free
37.58
7:56.32
700 Free
36.43
8:32.75
100 Free
1:14.01
750 Free
37.17
9:09.92
800 Free
34.82
9:44.74
100 Free
1:11.99
Free 1500 M 18:52.97 15 07/24/2025 A AA: 18:11.09 (+41.88s | 3.7%) 3 73 250 535
50 Free
34.76
34.76
100 Free
37.79
1:12.55
100 Free
1:12.55
150 Free
37.59
1:50.14
200 Free
37.37
2:27.51
100 Free
1:14.96
250 Free
37.80
3:05.31
300 Free
38.42
3:43.73
100 Free
1:16.22
350 Free
37.91
4:21.64
400 Free
37.75
4:59.39
100 Free
1:15.66
450 Free
37.81
5:37.20
500 Free
38.31
6:15.51
100 Free
1:16.12
550 Free
38.07
6:53.58
600 Free
37.86
7:31.44
100 Free
1:15.93
650 Free
38.11
8:09.55
700 Free
38.34
8:47.89
100 Free
1:16.45
750 Free
38.01
9:25.90
800 Free
38.21
10:04.11
100 Free
1:16.22
850 Free
37.63
10:41.74
900 Free
38.55
11:20.29
100 Free
1:16.18
950 Free
37.75
11:58.04
1000 Free
38.06
12:36.10
100 Free
1:15.81
1050 Free
37.70
13:13.80
1100 Free
37.31
13:51.11
100 Free
1:15.01
1150 Free
37.92
14:29.03
1200 Free
37.02
15:06.05
100 Free
1:14.94
1250 Free
38.27
15:44.32
1300 Free
38.09
16:22.41
100 Free
1:16.36
1350 Free
38.63
17:01.04
1400 Free
38.26
17:39.30
100 Free
1:16.89
1450 Free
37.62
18:16.92
1500 Free
36.05
18:52.97
100 Free
1:13.67
Back 50 M 32.77 14 07/25/2024 9 88 337 803
Back 100 M 1:09.48 14 06/12/2025 BB A: 1:07.99 (+1.49s | 2.1%) 11 137 461 1,000+
Back 200 M 2:27.97 14 06/12/2025 BB A: 2:27.69 (+0.28s | 0.2%) 8 88 285 727
Breast 200 M 3:10.34 14 07/25/2024 B BB: 3:00.59 (+9.75s | 5.1%) 12 212 765 1,000+
50 Breast
43.38
43.38
100 Breast
47.78
1:31.16
100 Breast
1:31.16
150 Breast
49.45
2:20.61
200 Breast
49.73
3:10.34
100 Breast
1:39.18
Fly 100 M 1:03.85 15 07/24/2025 A AA: 1:03.09 (+0.76s | 1.2%) 8 108 305 727
50 Fly
30.36
30.36
100 Fly
33.49
1:03.85
100 Fly
1:03.85
IM 200 M 2:24.66 14 06/12/2025 AA AAA: 2:18.39 (+6.27s | 4.3%) 10 116 336 769
50 Fly
30.69
30.69
100 Back
37.67
1:08.36
100 IM
1:08.36
150 Breast
42.38
1:50.74
200 Free
33.92
2:24.66
100 IM
1:16.30
IM 400 M 5:20.88 14 06/12/2025 A AA: 5:07.79 (+13.09s | 4.1%) 7 126 376 827
50 Fly
32.84
32.84
100 Fly
39.27
1:12.11
100 Fly
1:12.11
150 Back
42.46
1:54.57
200 Back
39.75
2:34.32
100 Back
1:22.21
250 Breast
46.01
3:20.33
350 Free
1:24.02
4:44.35
400 Free
36.53
5:20.88
100 Free
2:00.55

Above are the fastest times that Koji Konishi has achieved in his swimming career. For each event, you can find Koji's best time, the corresponding time standard, as well as how much faster Koji needs to be to reach the next level. The last columns provide Koji rankings at the team and LSC levels. These rankings are based on the Koji's personal best, his current age category, and team; and are calculated from all the meets results.

Disclaimer: This Website is not affiliated with USA Swimming or any Local Swim Committee. The rankings and times displayed on this website are unofficial and should not be viewed as such. We update our information regularly, but we cannot guarantee that the data is accurate, timely, or complete. The only purpose of this website is entertainment. None of the information here should be used for university admission applications.