Jefferson Koller

Age: 12 years old
Age Category: 11-12
Team: Mantas Swim Club | Minnesota Swimming
Participation: 27 meets 95 events

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Minnesota Swimming

Mantas Swim Club

Free 50 Y

34.87

01/04/2025

B: 32.79 (+2.08s | 6.0%)

300

Free 100 Y

1:21.19

03/07/2025

B: 1:11.49 (+9.70s | 11.9%)

306

50 Free

38.38

100 Free

42.81

1:21.19

100 Free

1:21.19

Free 200 Y

2:52.79

01/25/2025

B: 2:35.99 (+16.80s | 9.7%)

212

Back 50 Y

39.45

01/10/2025

B: 38.49 (+0.96s | 2.4%)

191

Back 100 Y

1:26.65

03/07/2025

B: 1:22.19 (+4.46s | 5.1%)

195

50 Back

42.73

100 Back

43.92

1:26.65

100 Back

1:26.65

Breast 50 Y

55.33

01/04/2025

B: 43.49 (+11.84s | 21.4%)

393

Breast 100 Y

1:55.05

03/07/2025

B: 1:32.59 (+22.46s | 19.5%)

300

50 Breast

54.19

100 Breast

1:00.86

1:55.05

100 Breast

1:55.05

Fly 50 Y

48.64

02/08/2025

B: 37.09 (+11.55s | 23.7%)

303

Fly 100 Y

1:51.07

02/08/2025

B: 1:22.89 (+28.18s | 25.4%)

184

50 Fly

52.49

100 Fly

58.58

1:51.07

100 Fly

1:51.07

IM 100 Y

1:35.46

03/07/2025

B: 1:21.89 (+13.57s | 14.2%)

303

50 IM

42.62

100 IM

52.84

1:35.46

100 IM

1:35.46

Long course distance

Event

Time

Age

Date

Standard

Next Standard

Minnesota Swimming

Mantas Swim Club

Free 50 M

42.67

06/22/2024

B: 37.39 (+5.28s | 12.4%)

204

Free 100 M

1:36.51

07/06/2024

B: 1:22.09 (+14.42s | 14.9%)

197

50 Free

47.59

100 Free

48.92

1:36.51

100 Free

1:36.51

Free 200 M

3:26.28

06/07/2024

B: 2:59.19 (+27.09s | 13.1%)

150

Back 50 M

48.64

06/22/2024

B: 44.49 (+4.15s | 8.5%)

174

Back 100 M

1:48.70

06/22/2024

B: 1:37.19 (+11.51s | 10.6%)

154

50 Back

53.12

100 Back

55.58

1:48.70

100 Back

1:48.70

Breast 50 M

1:07.61

06/22/2024

B: 49.79 (+17.82s | 26.4%)

211

Fly 50 M

1:10.82

07/06/2024

B: 41.99 (+28.83s | 40.7%)

196

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

Time Standards

Got the currrent age group time standard
Time standard for the next age group and the gap to reach it
Got the next age group’s time standard.

Short Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 50 Y	34.87	22.19 (+12.68s \| 36.4%)	21.29 (+13.58s \| 38.9%)	21.29 (+13.58s \| 38.9%)	20.59 (+14.28s \| 41.0%)	20.09 (+14.78s \| 42.4%)	20.39 (+14.48s \| 41.5%)	27.49 (+7.38s \| 21.2%)
Free 100 Y	1:21.19	48.19 (+33.00s \| 40.6%)	46.39 (+34.80s \| 42.9%)	46.39 (+34.80s \| 42.9%)	45.09 (+36.10s \| 44.5%)	43.49 (+37.70s \| 46.4%)	44.39 (+36.80s \| 45.3%)	59.29 (+21.90s \| 27.0%)
Free 200 Y	2:52.79	1:45.79 (+67.00s \| 38.8%)	1:41.59 (+71.20s \| 41.2%)	1:41.59 (+71.20s \| 41.2%)	1:38.79 (+74.00s \| 42.8%)	1:36.49 (+76.30s \| 44.2%)	1:38.09 (+74.70s \| 43.2%)	2:09.19 (+43.60s \| 25.2%)
Back 50 Y	39.45	N/A	N/A	N/A	N/A	N/A	N/A	31.89 (+7.56s \| 19.2%)
Back 100 Y	1:26.65	53.89 (+32.76s \| 37.8%)	51.49 (+35.16s \| 40.6%)	51.49 (+35.16s \| 40.6%)	49.39 (+37.26s \| 43.0%)	47.59 (+39.06s \| 45.1%)	48.89 (+37.76s \| 43.6%)	1:07.49 (+19.16s \| 22.1%)
Breast 50 Y	55.33	N/A	N/A	N/A	N/A	N/A	N/A	35.49 (+19.84s \| 35.9%)
Breast 100 Y	1:55.05	1:00.89 (+54.16s \| 47.1%)	57.99 (+57.06s \| 49.6%)	57.99 (+57.06s \| 49.6%)	55.89 (+59.16s \| 51.4%)	54.19 (+60.86s \| 52.9%)	55.29 (+59.76s \| 51.9%)	1:15.89 (+39.16s \| 34.0%)
Fly 50 Y	48.64	N/A	N/A	N/A	N/A	N/A	N/A	30.49 (+18.15s \| 37.3%)
Fly 100 Y	1:51.07	52.89 (+58.18s \| 52.4%)	50.59 (+60.48s \| 54.5%)	50.59 (+60.48s \| 54.5%)	48.99 (+62.08s \| 55.9%)	47.79 (+63.28s \| 57.0%)	48.39 (+62.68s \| 56.4%)	1:07.09 (+43.98s \| 39.6%)
IM 100 Y	1:35.46	N/A	N/A	N/A	N/A	N/A	N/A	1:08.09 (+27.37s \| 28.7%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 50 M	42.67	25.89 (+16.78s \| 39.3%)	24.59 (+18.08s \| 42.4%)	24.59 (+18.08s \| 42.4%)	24.29 (+18.38s \| 43.1%)	23.39 (+19.28s \| 45.2%)	23.79 (+18.88s \| 44.2%)	31.49 (+11.18s \| 26.2%)
Free 100 M	1:36.51	56.09 (+40.42s \| 41.9%)	53.59 (+42.92s \| 44.5%)	53.59 (+42.92s \| 44.5%)	52.59 (+43.92s \| 45.5%)	50.99 (+45.52s \| 47.2%)	51.99 (+44.52s \| 46.1%)	1:07.49 (+29.02s \| 30.1%)
Free 200 M	3:26.28	2:03.09 (+83.19s \| 40.3%)	1:57.79 (+88.49s \| 42.9%)	1:57.79 (+88.49s \| 42.9%)	1:55.49 (+90.79s \| 44.0%)	1:52.19 (+94.09s \| 45.6%)	1:54.09 (+92.19s \| 44.7%)	2:26.99 (+59.29s \| 28.7%)
Back 50 M	48.64	N/A	N/A	N/A	N/A	N/A	N/A	36.79 (+11.85s \| 24.4%)
Back 100 M	1:48.70	1:03.29 (+45.41s \| 41.8%)	1:00.59 (+48.11s \| 44.3%)	1:00.59 (+48.11s \| 44.3%)	58.89 (+49.81s \| 45.8%)	57.29 (+51.41s \| 47.3%)	58.19 (+50.51s \| 46.5%)	1:18.49 (+30.21s \| 27.8%)
Breast 50 M	1:07.61	N/A	N/A	N/A	N/A	N/A	N/A	40.39 (+27.22s \| 40.3%)
Fly 50 M	1:10.82	N/A	N/A	N/A	N/A	N/A	N/A	34.39 (+36.43s \| 51.4%)

Progression

See how Jefferson Koller is improving gradually by choosing the distance and the stroke you are interested in. You can also compare the Jefferson's time to another swimmer's and even view their profile for more information about them.

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Meets

See all the meets Jefferson Koller has participated in and his achievement. The last event displayed is the most recent. For each event, you can find the Jefferson's time, the progress against Jefferson's best time, the corresponding time standard, as well as how much faster Jefferson needs to be to reach the next level.

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2025 MN MAN Minnesota Regional Championship

03/07/2025

50 Y Breast

55.87

+0.54s

B: 43.49 (+12.38s | 22.2%)

100 Y Back

1:26.65

-1.59s (New PB)

B: 1:22.19 (+4.46s | 5.1%)

50 Back

42.73

100 Back

43.92

1:26.65

100 Back

1:26.65

100 Y Breast

1:55.05

-2.95s (New PB)

B: 1:32.59 (+22.46s | 19.5%)

50 Breast

54.19

100 Breast

1:00.86

1:55.05

100 Breast

1:55.05

100 Y Free

1:21.19

-0.36s (New PB)

B: 1:11.49 (+9.70s | 11.9%)

50 Free

38.38

100 Free

42.81

1:21.19

100 Free

1:21.19

100 Y IM

1:35.46

-3.59s (New PB)

B: 1:21.89 (+13.57s | 14.2%)

50 IM

42.62

100 IM

52.84

1:35.46

100 IM

1:35.46

50 Y Free

35.77

+0.90s

B: 32.79 (+2.98s | 8.3%)

50 Y Back

39.56

+0.11s

B: 38.49 (+1.07s | 2.7%)

2025 MN NOR Championship Belt Sprint Spectacu

02/08/2025

Northfield Middle School

100 Y Fly

1:51.07

B: 1:22.89 (+28.18s | 25.4%)

50 Fly

52.49

100 Fly

58.58

1:51.07

100 Fly

1:51.07

100 Y Breast

2:01.07

+3.07s

B: 1:32.59 (+28.48s | 23.5%)

50 Breast

58.95

100 Breast

1:02.12

2:01.07

100 Breast

2:01.07

50 Y Free

35.77

+0.90s

B: 32.79 (+2.98s | 8.3%)

50 Y Fly

48.64

-2.04s (New PB)

B: 37.09 (+11.55s | 23.7%)

50 Y Breast

56.96

+1.63s

B: 43.49 (+13.47s | 23.6%)

100 Y Back

1:28.24

-2.17s (New PB)

B: 1:22.19 (+6.05s | 6.9%)

50 Back

42.26

100 Back

45.98

1:28.24

100 Back

1:28.24

50 Y Back

39.69

+0.24s

B: 38.49 (+1.20s | 3.0%)

100 Y Free

1:22.09

+0.54s

B: 1:11.49 (+10.60s | 12.9%)

50 Free

39.21

100 Free

42.88

1:22.09

100 Free

1:22.09

2025 MN HAST JAN IMX

01/25/2025

Hastings Middle School

100 Y Back

1:30.41

-0.66s (New PB)

B: 1:22.19 (+8.22s | 9.1%)

50 Back

44.20

100 Back

46.21

1:30.41

100 Back

1:30.41

200 Y Free

2:52.79

B: 2:35.99 (+16.80s | 9.7%)

100 Y Breast

1:58.00

-0.64s (New PB)

B: 1:32.59 (+25.41s | 21.5%)

50 Breast

56.06

100 Breast

1:01.94

1:58.00

100 Breast

1:58.00

100 Y Free

1:21.55

-1.55s (New PB)

B: 1:11.49 (+10.06s | 12.3%)

50 Free

39.02

100 Free

42.53

1:21.55

100 Free

1:21.55

50 Y Fly

50.68

B: 37.09 (+13.59s | 26.8%)

100 Y IM

1:39.05

B: 1:21.89 (+17.16s | 17.3%)

50 IM

45.25

100 IM

53.80

1:39.05

100 IM

1:39.05

2025 MN FOXJ Winter Classic

01/10/2025

Jean K. Freeman Aquatics Center, Minneapolis

50 Y Back

39.45

-5.19s (New PB)

B: 38.49 (+0.96s | 2.4%)

2025 MN SHRK Freezing Your Fins Off

01/04/2025

Levi Dodge Middle School

50 Y Free

34.87

-1.16s (New PB)

B: 32.79 (+2.08s | 6.0%)

50 Y Breast

55.33

-0.32s (New PB)

B: 43.49 (+11.84s | 21.4%)

100 Y Back

1:31.07

-2.16s (New PB)

B: 1:22.19 (+8.88s | 9.8%)

50 Back

44.45

100 Back

46.62

1:31.07

100 Back

1:31.07

November 16-17 (SHRK) Invite (SCY)

11/16/2024

Levi Dodge Middle School

50 Y Free

36.03

-0.30s (New PB)

B: 32.79 (+3.24s | 9.0%)

100 Y Back

1:33.23

-1.02s (New PB)

B: 1:22.19 (+11.04s | 11.8%)

50 Back

46.19

100 Back

47.04

1:33.23

100 Back

1:33.23

50 Y Breast

55.65

-1.80s (New PB)

B: 43.49 (+12.16s | 21.9%)

November 2-3 (WEST) Invite (SCY)

11/02/2024

Pioneer Ridge Middle School

100 Y Back

1:34.54

+0.29s

B: 1:22.19 (+12.35s | 13.1%)

50 Y Free

37.08

+0.75s

B: 32.79 (+4.29s | 11.6%)

100 Y Free

1:25.15

+2.05s

B: 1:11.49 (+13.66s | 16.0%)

50 Free

40.62

100 Free

44.53

1:25.15

100 Free

1:25.15

October 27 (NOR) Invite (SCY)

10/27/2024

100 Y Free

1:24.79

+1.69s

B: 1:11.49 (+13.30s | 15.7%)

50 Free

39.35

100 Free

45.44

1:24.79

100 Free

1:24.79

100 Y Back

1:38.54

+4.29s

B: 1:22.19 (+16.35s | 16.6%)

100 Y Breast

1:58.64

+0.00s

B: 1:32.59 (+26.05s | 22.0%)

50 Breast

57.14

100 Breast

1:01.50

1:58.64

100 Breast

1:58.64

October 27 (NOR) Invite (SCY)

10/27/2024

Northfield Middle School

100 Y Back

1:38.54

+4.29s

B: 1:22.19 (+16.35s | 16.6%)

100 Y Breast

1:58.64

-5.15s (New PB)

B: 1:32.59 (+26.05s | 22.0%)

50 Breast

57.14

100 Breast

1:01.50

1:58.64

100 Breast

1:58.64

100 Y Free

1:24.79

+1.69s

B: 1:11.49 (+13.30s | 15.7%)

50 Free

39.35

100 Free

45.44

1:24.79

100 Free

1:24.79

July 6-7 (BAC) Invite (LCM)

07/06/2024

50 M Back

52.62

+3.98s

B: 44.49 (+8.13s | 15.5%)

100 M Free

1:36.51

-0.94s (New PB)

B: 1:22.09 (+14.42s | 14.9%)

50 Free

47.59

100 Free

48.92

1:36.51

100 Free

1:36.51

50 M Fly

1:10.82

B: 41.99 (+28.83s | 40.7%)

June 22-23 (MAN) Invite (LCM)

06/22/2024

50 M Back

48.64

-2.84s (New PB)

B: 44.49 (+4.15s | 8.5%)

200 M Free

3:26.73

+0.45s

B: 2:59.19 (+27.54s | 13.3%)

50 Free

47.19

100 Free

55.12

1:42.31

100 Free

1:42.31

150 Free

55.01

2:37.32

200 Free

49.41

3:26.73

100 Free

1:44.42

100 M Back

1:48.70

-2.45s (New PB)

B: 1:37.19 (+11.51s | 10.6%)

50 Back

53.12

100 Back

55.58

1:48.70

100 Back

1:48.70

100 M Free

1:38.01

+0.56s

B: 1:22.09 (+15.92s | 16.2%)

50 Free

45.47

100 Free

52.54

1:38.01

100 Free

1:38.01

50 M Free

42.67

-1.69s (New PB)

B: 37.39 (+5.28s | 12.4%)

50 M Breast

1:07.61

-0.24s (New PB)

B: 49.79 (+17.82s | 26.4%)

June 7-9 (RSC) Invite (LCM)

06/07/2024

100 M Free

1:37.45

-7.95s (New PB)

B: 1:22.09 (+15.36s | 15.8%)

50 M Back

51.48

-0.22s (New PB)

B: 44.49 (+6.99s | 13.6%)

50 M Breast

1:07.85

B: 49.79 (+18.06s | 26.6%)

200 M Free

3:26.28

B: 2:59.19 (+27.09s | 13.1%)

May 18-19 (SHRK) Invite (SCY)

05/18/2024

50 Y Back

44.64

-1.64s (New PB)

B: 38.49 (+6.15s | 13.8%)

100 Y Back

1:35.02

+0.77s

B: 1:22.19 (+12.83s | 13.5%)

50 Back

46.16

100 Back

48.86

1:35.02

100 Back

1:35.02

100 Y Free

1:27.74

+4.64s

B: 1:11.49 (+16.25s | 18.5%)

50 Free

41.04

100 Free

46.70

1:27.74

100 Free

1:27.74

50 Y Free

38.07

+1.74s

B: 32.79 (+5.28s | 13.9%)

100 Y Breast

2:03.79

B: 1:32.59 (+31.20s | 25.2%)

50 Breast

1:00.58

100 Breast

1:03.21

2:03.79

100 Breast

2:03.79

50 Y Breast

58.04

+0.59s

B: 43.49 (+14.55s | 25.1%)

March 1-3 Minnesota Regional Championships (3 of 6 sites - MAN/RSC/STRM)

03/01/2024

100 Y Free

1:23.10

-1.13s (New PB)

B: 1:11.49 (+11.61s | 14.0%)

50 Free

40.58

100 Free

42.52

1:23.10

100 Free

1:23.10

50 Y Free

36.33

-1.97s (New PB)

B: 32.79 (+3.54s | 9.7%)

February 10-11 (NOR) Invite (SCY)

02/10/2024

50 Y Breast

59.43

+1.98s

B: 43.49 (+15.94s | 26.8%)

50 Y Free

39.20

+0.90s

B: 32.79 (+6.41s | 16.4%)

100 Y Back

1:35.97

+1.72s

B: 1:22.19 (+13.78s | 14.4%)

February 3-4 (WEST) Invite (SCY)

02/03/2024

100 Y Free

1:24.23

-2.01s (New PB)

B: 1:11.49 (+12.74s | 15.1%)

50 Free

40.86

100 Free

43.37

1:24.23

100 Free

1:24.23

50 Y Free

39.26

+0.96s

B: 32.79 (+6.47s | 16.5%)

100 Y Back

1:35.17

+0.92s

B: 1:22.19 (+12.98s | 13.6%)

50 Back

47.47

100 Back

47.70

1:35.17

100 Back

1:35.17

January 27-28 (HAST) Invite (SCY)

01/27/2024

100 Y Free

1:26.24

-6.91s (New PB)

B: 1:11.49 (+14.75s | 17.1%)

50 Free

42.61

100 Free

43.63

1:26.24

100 Free

1:26.24

100 Y Back

1:35.69

+1.44s

B: 1:22.19 (+13.50s | 14.1%)

50 Back

1:35.69

100 Back

0.00

1:35.69

100 Back

1:35.69

January 6-7 (SHRK) Invite (SCY)

01/06/2024

100 Y Back

1:34.25

-7.78s (New PB)

B: 1:22.19 (+12.06s | 12.8%)

50 Back

46.96

100 Back

47.29

1:34.25

100 Back

1:34.25

50 Y Breast

57.45

-47.51s (New PB)

B: 43.49 (+13.96s | 24.3%)

50 Y Free

38.30

-0.56s (New PB)

B: 32.79 (+5.51s | 14.4%)

November 11-12 (WEST) Invite (SCY)

11/11/2023

50 Y Free

38.86

-3.30s (New PB)

B: 32.79 (+6.07s | 15.6%)

100 Y Free

1:33.15

-2.29s (New PB)

B: 1:11.49 (+21.66s | 23.3%)

Minnesota Regional Championships (ASF / MTKA / SEMS/PRNH/STRM / TUNA) ~ LCM

07/14/2023

50 M Free

47.85

+3.49s

B: 43.89 (+3.96s | 8.3%)

100 M Back

1:51.15

-7.89s (New PB)

BB: 1:44.49 (+6.66s | 6.0%)

June 17 (SHRK) Invite (SCY)

06/17/2023

50 Y Back

46.28

-4.75s (New PB)

BB: 42.89 (+3.39s | 7.3%)

100 Y Back

1:42.03

-9.46s (New PB)

B: 1:40.69 (+1.34s | 1.3%)

100 Y Free

1:35.44

-17.54s (New PB)

B: 1:27.99 (+7.45s | 7.8%)

50 Y Free

42.16

-2.48s (New PB)

B: 38.19 (+3.97s | 9.4%)

June 9-11 (RIPT/ASF) Approved Invite (LCM)

06/09/2023

50 M Free

44.36

B: 43.89 (+0.47s | 1.1%)

100 M Free

1:45.40

B: 1:40.99 (+4.41s | 4.2%)

50 M Back

51.70

BB: 49.29 (+2.41s | 4.7%)

100 M Back

1:59.04

B: 1:56.69 (+2.35s | 2.0%)

March 3-5 Minnesota Regional Championships (3 of 6 sites - NEP/STRM/RSC)

03/03/2023

50 Y Free

44.64

-3.98s (New PB)

B: 38.19 (+6.45s | 14.4%)

100 Y Back

1:51.49

-28.13s (New PB)

B: 1:40.69 (+10.80s | 9.7%)

February 11-12 (AQJT) Approved Invite (SCY)

02/11/2023

50 Y Free

50.53

+1.91s

B: 38.19 (+12.34s | 24.4%)

December 10-11 (SCSC) Invite (SCY)

12/10/2022

50 Y Back

51.03

-2.98s (New PB)

B: 48.29 (+2.74s | 5.4%)

50 Y Free

48.62

-4.61s (New PB)

B: 38.19 (+10.43s | 21.5%)

100 Y Free

1:53.35

+0.37s

B: 1:27.99 (+25.36s | 22.4%)

November 5 (NEP) Invite (SCY)

11/05/2022

50 Y Free

53.50

+0.27s

B: 38.19 (+15.31s | 28.6%)

100 Y Free

2:05.19

+12.21s

B: 1:27.99 (+37.20s | 29.7%)

50 Y Back

54.01

-2.25s (New PB)

B: 48.29 (+5.72s | 10.6%)

October 29-30 (NOR) Invite (SCY)

10/29/2022

50 Y Breast

1:44.96

B: 53.39 (+51.57s | 49.1%)

50 Y Free

53.23

B: 38.19 (+15.04s | 28.3%)

50 Y Back

56.26

B: 48.29 (+7.97s | 14.2%)

October 15 (BAC) Invite (SCY)

10/15/2022

100 Y Free

1:52.98

B: 1:27.99 (+24.99s | 22.1%)

100 Y Back

2:19.62

B: 1:40.69 (+38.93s | 27.9%)

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