Jameson Koss

Mage 9SENAC

151 plausible swims · 32 meets · 2016-09-24 → 2026-01-01

Personal records

EventCourseBest CutDateMeet
25 Freestyle SCY 20.18 2016-09-24 2016 Fall Face Off
50 Freestyle SCY 22.84 +0.55s to Sectionals 2024-12-07 2024 NAC SPEEDO Music City Invitationalvenue
100 Freestyle SCY 50.24 +1.95s to Sectionals 2024-11-15 NAC Intrasquadvenue
200 Freestyle SCY 1:48.50 +2.71s to Sectionals 2024-12-06 2024 NAC SPEEDO Music City Invitationalvenue
500 Freestyle SCY 5:09.68 +23.59s to Sectionals 2022-01-01 2022 NAC SPEEDO Music City Invitationalslow pool
25 Backstroke SCY 23.52 2016-09-24 2016 Fall Face Off
50 Backstroke SCY 35.38 +9.69s to Sectionals 2018-10-06 2018 Fall Face Off
100 Backstroke SCY 1:39.60 +44.51s to Sectionals 2026-01-01 full resultsregion xcel(2)
25 Breaststroke SCY 23.35 2016-10-15 2016 SE NAC October Open
50 Breaststroke SCY 40.48 +10.99s to Sectionals 2018-10-06 2018 Fall Face Off
100 Breaststroke SCY 59.93 Sectionals ✓+1.94s to Futures 2025-02-28 2025 SE Speedo Southern Premiervenue
200 Breaststroke SCY 2:12.26 Sectionals ✓+4.27s to Futures 2025-03-02 2025 SE Speedo Southern Premiervenue
25 Butterfly SCY 23.90 2016-12-10 2016 8&Under Rock 'n' Races
50 Butterfly SCY 31.91 +7.62s to Sectionals 2020-09-20 NAC R+B Racin'
100 Butterfly SCY 1:19.20 +26.51s to Sectionals 2018-10-06 2018 Fall Face Off
100 Individual Medley SCY 1:09.12 2020-09-20 NAC R+B Racin'
200 Individual Medley SCY 2:00.71 +1.32s to Sectionals 2025-03-01 2025 SE Speedo Southern Premiervenue
50 Freestyle LCM 26.91 +1.32s to Sectionals 2024-05-18 2024 HSA May Invitationalvenue
100 Freestyle LCM 58.39 +3.10s to Sectionals 2024-06-08 2024 Synergy Dryland Summer Sizzlervenue
200 Freestyle LCM 2:05.18 +4.29s to Sectionals 2025-07-24 2025 TNAQ Senior Summer Showdownvenue
400 Freestyle LCM 4:38.71 +19.62s to Sectionals 2024-05-19 2024 HSA May Invitationalvenue
50 Backstroke LCM 37.81 +7.62s to Sectionals 2019-07-18 2019 SE Southeastern LC Championships
100 Backstroke LCM 1:08.98 +4.49s to Sectionals 2024-07-13 2024 LC Mini-Champs/Last Chance Meetvenue
50 Breaststroke LCM 32.29 Sectionals ✓+1.40s to Futures 2025-07-26 2025 TNAQ Senior Summer Showdownvenue
100 Breaststroke LCM 1:09.74 Sectionals ✓+1.55s to Futures 2025-06-19 2025 Synergy Dryland Summer Sizzlervenue
200 Breaststroke LCM 2:34.35 Sectionals ✓+5.26s to Futures 2025-06-20 2025 Synergy Dryland Summer Sizzlervenue
50 Butterfly LCM 38.28 +10.49s to Sectionals 2019-04-13 2019 HSA Long Course Invitational
100 Butterfly LCM 1:26.19 +25.70s to Sectionals 2019-07-18 2019 SE Southeastern LC Championships
200 Individual Medley LCM 2:20.10 +2.41s to Sectionals 2025-06-21 2025 Synergy Dryland Summer Sizzlervenue

National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.

Pool tags are a venue speed heuristic (median deviation of all swims there vs each swimmer's typical time) — see the venue page for the method.

IMX / IMR

IMX 10 & under · LCM

5187 points (5/5 events)

EventTime Points
200 FR LCM 2:05.18 1100
100 BK LCM 1:08.98 1100
100 BR LCM 1:09.74 1100
100 FL LCM 1:26.19 787
200 IM LCM 2:20.10 1100

IMR 10 & under · LCM

4980 points (5/5 events)

EventTime Points
100 FR LCM 58.39 1100
50 BK LCM 37.81 936
50 BR LCM 32.29 1100
50 FL LCM 38.28 744
200 IM LCM 2:20.10 1100

Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.

PR splits

100 Freestyle SCY 50.24

24.31
25.93

Front half 24.31s · back half 25.93s

200 Freestyle SCY 1:48.50

25.37
27.33
27.99
27.81

Front half 52.70s · back half 55.80s

25 Backstroke SCY 23.52 split/total mismatch

42.93
48.41

Front half 42.93s · back half -19.41s

100 Breaststroke SCY 59.93

28.24
31.69

Front half 28.24s · back half 31.69s

200 Breaststroke SCY 2:12.26

29.97
33.40
34.19
34.70

Front half 63.37s · back half 68.89s

200 Individual Medley SCY 2:00.71

27.16
31.56
33.93
28.06

Front half 58.72s · back half 61.99s

200 Freestyle LCM 2:05.18 RT 0.50s

29.26
31.30
32.32
32.30

Front half 60.56s · back half 64.62s

400 Freestyle LCM 4:38.71

32.90
35.13
35.40
35.68
35.32
35.83
35.14
33.31

Front half 139.11s · back half 139.60s

100 Backstroke LCM 1:08.98

33.51
35.47

Front half 33.51s · back half 35.47s

200 Breaststroke LCM 2:34.35

73.65
80.70

Front half 73.65s · back half 80.70s

200 Individual Medley LCM 2:20.10

68.86
71.24

Front half 68.86s · back half 71.24s

Reaction time

fastest 0.48s average 0.570s slowest 0.63s 5 electronic starts

Start reaction over time faster starts higher

From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.

Swim history

Every recorded swim, newest first
DateEventCourse TimeAge RoundMeet

Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.

Progression

Faster times are higher. One card per event, all courses & history.

25 Freestyle SCY 20.18 3 swims
50 Freestyle SCY 22.84 5 swims
100 Freestyle SCY 50.24 5 swims
200 Freestyle SCY 1:48.50 2 swims
500 Freestyle SCY 5:09.68 2 swims
25 Backstroke SCY 23.52 1 swim
50 Backstroke SCY 35.38 4 swims
100 Backstroke SCY 1:39.60 1 swim
25 Breaststroke SCY 23.35 2 swims
50 Breaststroke SCY 40.48 4 swims
100 Breaststroke SCY 59.93 9 swims
200 Breaststroke SCY 2:12.26 5 swims
25 Butterfly SCY 23.90 2 swims
50 Butterfly SCY 31.91 5 swims
100 Butterfly SCY 1:19.20 2 swims
100 Individual Medley SCY 1:09.12 4 swims
200 Individual Medley SCY 2:00.71 4 swims
50 Freestyle LCM 26.91 6 swims
100 Freestyle LCM 58.39 10 swims
200 Freestyle LCM 2:05.18 7 swims
400 Freestyle LCM 4:38.71 5 swims
50 Backstroke LCM 37.81 5 swims
100 Backstroke LCM 1:08.98 8 swims
50 Breaststroke LCM 32.29 5 swims
100 Breaststroke LCM 1:09.74 18 swims
200 Breaststroke LCM 2:34.35 12 swims
50 Butterfly LCM 38.28 3 swims
100 Butterfly LCM 1:26.19 4 swims
200 Individual Medley LCM 2:20.10 7 swims