Ronav Chakraborty

Mage 14ILMIOZWIILPAC

58 plausible swims · 9 meets · 2024-07-12 → 2026-03-15

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	22.81	AAA+0.42s to AAAA	2026-03-14	2026 ISI Winter 11-14 Age Group Championships venue
100 Freestyle	SCY	52.04	AA+0.85s to AAA	2026-03-15	2026 ISI Winter 11-14 Age Group Championships venue
200 Freestyle	SCY	1:56.66	AA+4.67s to AAA	2026-03-01	2026 Winter ISI Regionals- PAC fast pool
500 Freestyle	SCY	5:29.09	A+12.00s to AA	2026-02-28	2026 Winter ISI Regionals- PAC fast pool
50 Backstroke	SCY	25.79	AAA+0.50s to AAAA	2026-03-13	2026 ISI Winter 11-14 Age Group Championships venue
100 Backstroke	SCY	1:11.19	B+4.90s to BB	2024-07-14	2024 IL BSC Summer Regional Championships slow pool
200 Backstroke	SCY	2:15.78	BB+2.79s to A	2026-02-28	2026 Winter ISI Regionals- PAC fast pool
50 Breaststroke	SCY	29.42	AAA+0.53s to AAAA	2026-03-15	2026 ISI Winter 11-14 Age Group Championships venue
100 Breaststroke	SCY	1:04.81	AA+1.42s to AAA	2026-03-13	2026 ISI Winter 11-14 Age Group Championships venue
200 Breaststroke	SCY	2:46.16	B+3.37s to BB	2024-07-12	2024 IL BSC Summer Regional Championships slow pool
50 Butterfly	SCY	24.71	AAAA	2026-03-14	2026 ISI Winter 11-14 Age Group Championships venue
100 Butterfly	SCY	56.18	AA+0.79s to AAA	2026-03-13	2026 ISI Winter 11-14 Age Group Championships venue
100 Individual Medley	SCY	1:05.51		2024-07-14	2024 IL BSC Summer Regional Championships slow pool
200 Individual Medley	SCY	2:10.52	A+0.73s to AA	2026-02-28	2026 Winter ISI Regionals- PAC fast pool
400 Individual Medley	SCY	4:45.72	A+8.33s to AA	2026-02-27	2026 Winter ISI Regionals- PAC fast pool
50 Freestyle	LCM	26.67	AAA+0.98s to AAAA	2025-07-27	Illinois Swimming Age Group Champs LC 25 venue
100 Freestyle	LCM	1:02.13	A+0.44s to AA	2025-07-24	Illinois Swimming Age Group Champs LC 25 venue
50 Backstroke	LCM	32.36	AA+1.27s to AAA	2025-07-27	Illinois Swimming Age Group Champs LC 25 venue
100 Backstroke	LCM	1:11.32	A+2.63s to AA	2025-07-24	Illinois Swimming Age Group Champs LC 25 venue
50 Breaststroke	LCM	35.19	AA+0.50s to AAA	2025-07-26	Illinois Swimming Age Group Champs LC 25 venue
100 Breaststroke	LCM	1:18.06	A+0.87s to AA	2025-07-25	Illinois Swimming Age Group Champs LC 25 venue
200 Breaststroke	LCM	2:53.60	A+6.11s to AA	2025-07-24	Illinois Swimming Age Group Champs LC 25 venue
50 Butterfly	LCM	29.26	AAA+1.27s to AAAA	2025-08-09	2025 Central Zone 14 & Under Championship Mee fast pool

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.

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

Leg	Course	Time	Start	Relay	Date	Meet
100 Freestyle	SCY	57.99	flying	400 Medley Relay (leg 4)	2024-03-09	2024 IL Swimming SC Age Group Championships
100 Freestyle	SCY	58.86	flying	400 Free Relay (leg 2)	2024-03-10	2024 IL Swimming SC Age Group Championships
200 Freestyle	SCY	2:01.38	flat	800 Free Relay	2026-03-13	2026 ISI Winter 11-14 Age Group Championships
100 Freestyle	LCM	1:03.41	flying	400 Free Relay (leg 4)	2024-07-20	2024 IL Swimming LC Age Group Championships
100 Breaststroke	LCM	1:25.45	flying	400 Medley Relay (leg 2)	2024-07-21	2024 IL Swimming LC Age Group 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.

IMX / IMR

IMX 13-14 · SCY

3238 points (5/6 events — incomplete)

Event	Time	Points
500 FR SCY	5:29.09	679
200 BK SCY	2:15.78	623
200 BR SCY	2:46.16	492
200 IM SCY	2:10.52	748
400 IM SCY	4:45.72	696
200 FL SCY	—	0

IMR 13-14 · SCY

3584 points (5/5 events)

Event	Time	Points
200 FR SCY	1:56.66	769
100 BK SCY	1:11.19	424
100 BR SCY	1:04.81	809
100 FL SCY	56.18	834
200 IM SCY	2:10.52	748

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

PR splits

100 Freestyle SCY 52.04

24.85

27.19

Front half 24.85s · back half 27.19s

200 Freestyle SCY 1:56.66

26.74

29.94

30.46

29.52

Front half 56.68s · back half 59.98s

500 Freestyle SCY 5:29.09

28.72

31.72

33.18

32.43

33.32

32.93

34.51

34.71

34.22

33.35

Front half 159.37s · back half 169.72s

100 Backstroke SCY 1:11.19

34.50

36.69

Front half 34.50s · back half 36.69s

200 Backstroke SCY 2:15.78

31.91

34.37

35.84

33.66

Front half 66.28s · back half 69.50s

100 Breaststroke SCY 1:04.81

29.98

34.83

Front half 29.98s · back half 34.83s

200 Breaststroke SCY 2:46.16

35.68

42.86

45.26

42.36

Front half 78.54s · back half 87.62s

100 Butterfly SCY 56.18

25.95

30.23

Front half 25.95s · back half 30.23s

100 Individual Medley SCY 1:05.51

31.13

34.38

Front half 31.13s · back half 34.38s

200 Individual Medley SCY 2:10.52

26.81

34.56

39.19

29.96

Front half 61.37s · back half 69.15s

400 Individual Medley SCY 4:45.72

29.71

34.74

36.57

35.93

40.20

40.60

35.63

32.34

Front half 136.95s · back half 148.77s

100 Freestyle LCM 1:02.13

29.26

32.87

Front half 29.26s · back half 32.87s

100 Backstroke LCM 1:11.32 RT 0.90s

33.91

37.41

Front half 33.91s · back half 37.41s

100 Breaststroke LCM 1:18.06 RT 0.66s

36.39

41.67

Front half 36.39s · back half 41.67s

200 Breaststroke LCM 2:53.60 RT 0.69s

38.87

44.08

46.65

44.00

Front half 82.95s · back half 90.65s

Reaction time

fastest 0.66s average 0.735s slowest 0.90s 12 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.

Progression

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

50 Freestyle SCY 22.81 3 swims

100 Freestyle SCY 52.04 3 swims

200 Freestyle SCY 1:56.66 2 swims

500 Freestyle SCY 5:29.09 1 swim

50 Backstroke SCY 25.79 2 swims

100 Backstroke SCY 1:11.19 1 swim

200 Backstroke SCY 2:15.78 1 swim

50 Breaststroke SCY 29.42 3 swims

100 Breaststroke SCY 1:04.81 3 swims

200 Breaststroke SCY 2:46.16 1 swim

50 Butterfly SCY 24.71 3 swims

100 Butterfly SCY 56.18 5 swims

100 Individual Medley SCY 1:05.51 1 swim

200 Individual Medley SCY 2:10.52 2 swims

400 Individual Medley SCY 4:45.72 1 swim

50 Freestyle LCM 26.67 6 swims

100 Freestyle LCM 1:02.13 3 swims

50 Backstroke LCM 32.36 3 swims

100 Backstroke LCM 1:11.32 1 swim

50 Breaststroke LCM 35.19 4 swims

100 Breaststroke LCM 1:18.06 4 swims

200 Breaststroke LCM 2:53.60 1 swim

50 Butterfly LCM 29.26 4 swims