swimstats

Boris Kirienko

MCONMCOSAFLFNWOOD

187 plausible swims · 40 meets · 2019-10-12 → 2026-04-29

Personal records

EventCourseBest CutDateMeet
25 Freestyle SCY 15.13 2020-09-18 2020 CO AP WOOD COSPG 12&U COVID Seriesslow pool
50 Freestyle SCY 26.08 +2.89s to Sectionals 2026-04-29 2026 CO OB PPA Conference Championships
100 Freestyle SCY 57.11 +6.12s to Sectionals 2026-04-29 2026 CO OB PPA Conference Championships
200 Freestyle SCY 2:11.81 +20.02s to Sectionals 2024-12-14 2024 CO Falfins Holiday Openvenue
500 Freestyle SCY 8:32.83 +210.14s to Sectionals 2020-02-14 2020 CO CMA Valentine's Openslow pool
50 Backstroke SCY 39.02 +17.53s to US Open 2022-12-10 2022 CO Falfins Holiday Openvenue
100 Backstroke SCY 1:13.83 +18.34s to Sectionals 2024-12-15 2024 CO Falfins Holiday Openvenue
200 Backstroke SCY 2:44.36 +43.07s to Sectionals 2024-11-16 2024 CO TOPS Fall Invitevenue
25 Breaststroke SCY 20.41 2021-02-01 2021 CO AP COSA 12&U Winter Seriesvenue
50 Breaststroke SCY 40.05 +15.66s to US Open 2023-02-11 2023 CO ACES Winter Openvenue
100 Breaststroke SCY 1:20.40 +17.21s to Sectionals 2024-12-14 2024 CO Falfins Holiday Openvenue
200 Breaststroke SCY 2:52.22 +34.93s to Sectionals 2024-12-15 2024 CO Falfins Holiday Openvenue
50 Butterfly SCY 41.78 +20.59s to US Open 2022-12-11 2022 CO Falfins Holiday Openvenue
100 Butterfly SCY 1:14.89 +19.70s to Sectionals 2024-12-14 2024 CO Falfins Holiday Openvenue
100 Individual Medley SCY 1:22.61 2023-01-21 2023 CO FAST Winter Openvenue
200 Individual Medley SCY 2:35.11 +31.12s to Sectionals 2024-12-15 2024 CO Falfins Holiday Openvenue
50 Freestyle LCM 31.24 +4.25s to Sectionals 2024-04-14 2024 CO FST LCM Spring Fevervenue
100 Freestyle LCM 1:10.55 +11.56s to Sectionals 2024-04-27 2024 CO Steve Drozda LC Shotgunvenue
200 Freestyle LCM 2:34.94 +26.25s to Sectionals 2024-05-25 13th Annual Speedo Arizona Invitationalvenue
400 Freestyle LCM 5:24.94 +50.55s to Sectionals 2024-05-24 13th Annual Speedo Arizona Invitationalvenue
50 Backstroke LCM 45.37 +19.28s to US Open 2022-07-09 2022 CO Zone 5 Long Coursevenue
100 Backstroke LCM 1:30.15 +24.96s to Sectionals 2024-04-27 2024 CO Steve Drozda LC Shotgunvenue
200 Backstroke LCM 3:13.87 +52.38s to Sectionals 2024-05-18 2024 CO ACES Spring Invitevenue
50 Breaststroke LCM 46.90 +17.71s to US Open 2022-06-03 2022 CO COSA Friday Night Sprintvenue
100 Breaststroke LCM 1:32.37 +18.67s to Sectionals 2024-05-18 2024 CO ACES Spring Invitevenue
200 Breaststroke LCM 3:16.99 +36.11s to Sectionals 2024-05-24 13th Annual Speedo Arizona Invitationalvenue
200 Individual Medley LCM 3:01.57 +36.88s to Sectionals 2024-06-22 2024 CO Falfins Long Course Openvenue

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.

Fastest relay legs

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 29.24 flat 200 Free Relay 2024-01-20 2024 CO FAST Winter Open
50 Freestyle SCY 27.16 flying 200 Free Relay (leg 4) 2024-12-14 2024 CO Falfins Holiday Open
50 Freestyle SCY 27.59 flying 200 Medley Relay (leg 4) 2024-03-10 2024 CO Zone 5 Championships
100 Freestyle SCY 1:00.22 flying 400 Free Relay (leg 3) 2025-03-02 2025 CO CSI 14&U Age Group Championships
50 Breaststroke SCY 34.97 flying 200 Medley Relay (leg 2) 2024-12-15 2024 CO Falfins Holiday Open
50 Butterfly SCY 48.05 flying 200 Medley Relay (leg 3) 2020-02-16 2020 CO CMA Valentine's Open
50 Freestyle LCM 35.06 flat 200 Free Relay 2022-07-31 2022 CO CSI 12&U Age Group Championships
50 Freestyle LCM 32.08 flying 200 Free Relay (leg 2) 2024-06-22 2024 CO Falfins Long Course Open
50 Freestyle LCM 31.90 flying 200 Medley Relay (leg 4) 2024-06-23 2024 CO Falfins Long Course Open
100 Freestyle LCM 1:09.89 flying 400 Free Relay (leg 3) 2024-07-18 2024 CO CSI Senior LC Championships
100 Freestyle LCM 1:16.22 flying 400 Medley Relay (leg 4) 2023-07-20 2023 CO CSI Senior LC State Championships
100 Breaststroke LCM 1:31.54 flying 400 Medley Relay (leg 2) 2024-07-18 2024 CO CSI Senior LC Championships

Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.

PR splits

200 Freestyle SCY 2:11.81

29.92
33.53
35.63
32.73

Front half 63.45s · back half 68.36s

500 Freestyle SCY 8:32.83

43.71
50.26
52.33
54.20
51.99
54.82
54.21
51.97
51.74
47.60

Front half 252.49s · back half 260.34s

100 Backstroke SCY 1:13.83

36.57
37.26

Front half 36.57s · back half 37.26s

200 Backstroke SCY 2:44.36

39.56
42.73
40.94
41.13

Front half 82.29s · back half 82.07s

100 Breaststroke SCY 1:20.40

38.32
42.08

Front half 38.32s · back half 42.08s

200 Breaststroke SCY 2:52.22

37.16
44.50
47.49
43.07

Front half 81.66s · back half 90.56s

100 Butterfly SCY 1:14.89

34.90
39.99

Front half 34.90s · back half 39.99s

100 Individual Medley SCY 1:22.61

39.48
43.13

Front half 39.48s · back half 43.13s

200 Individual Medley SCY 2:35.11

33.51
41.73
46.67
33.20

Front half 75.24s · back half 79.87s

100 Freestyle LCM 1:10.55

33.68
36.87

Front half 33.68s · back half 36.87s

200 Freestyle LCM 2:34.94

72.38
82.56

Front half 72.38s · back half 82.56s

400 Freestyle LCM 5:24.94

74.05
86.14
86.06
78.69

Front half 160.19s · back half 164.75s

100 Backstroke LCM 1:30.15

43.91
46.24

Front half 43.91s · back half 46.24s

200 Backstroke LCM 3:13.87

96.42
97.45

Front half 96.42s · back half 97.45s

200 Breaststroke LCM 3:16.99

95.42
101.57

Front half 95.42s · back half 101.57s

200 Individual Medley LCM 3:01.57

41.17
50.88
51.65
37.87

Front half 92.05s · back half 89.52s

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 15.13 2 swims
50 Freestyle SCY 26.08 20 swims
100 Freestyle SCY 57.11 16 swims
200 Freestyle SCY 2:11.81 6 swims
500 Freestyle SCY 8:32.83 1 swim
50 Backstroke SCY 39.02 7 swims
100 Backstroke SCY 1:13.83 3 swims
200 Backstroke SCY 2:44.36 3 swims
25 Breaststroke SCY 20.41 3 swims
50 Breaststroke SCY 40.05 15 swims
100 Breaststroke SCY 1:20.40 12 swims
200 Breaststroke SCY 2:52.22 4 swims
50 Butterfly SCY 41.78 4 swims
100 Butterfly SCY 1:14.89 2 swims
100 Individual Medley SCY 1:22.61 6 swims
200 Individual Medley SCY 2:35.11 8 swims
50 Freestyle LCM 31.24 15 swims
100 Freestyle LCM 1:10.55 10 swims
200 Freestyle LCM 2:34.94 8 swims
400 Freestyle LCM 5:24.94 4 swims
50 Backstroke LCM 45.37 2 swims
100 Backstroke LCM 1:30.15 3 swims
200 Backstroke LCM 3:13.87 2 swims
50 Breaststroke LCM 46.90 8 swims
100 Breaststroke LCM 1:32.37 9 swims
200 Breaststroke LCM 3:16.99 7 swims
200 Individual Medley LCM 3:01.57 4 swims