Mason Rybaski

Mage 13GUILMIOZILSCST

72 plausible swims · 9 meets · 2024-03-07 → 2025-07-27

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	27.89	BB+1.20s to A	2024-07-13	2024 IL SCST Summer Regional Championships venue
100 Freestyle	SCY	55.99	A+0.50s to AA	2025-07-19	2025 ISI Summer Regional Championship - SCST venue
200 Freestyle	SCY	2:08.09	BB+1.40s to A	2024-03-08	2024 IL Swimming SC Age Group Championships slow pool
500 Freestyle	SCY	5:20.77	AA+7.48s to AAA	2025-07-19	2025 ISI Summer Regional Championship - SCST venue
1000 Freestyle	SCY	11:11.45	AA+23.26s to AAA	2025-03-13	2025 ISI Winter 11-14 Age Group Championships venue
50 Backstroke	SCY	28.97	AA+1.08s to AAA	2025-07-19	2025 ISI Summer Regional Championship - SCST venue
100 Backstroke	SCY	1:01.87	A+0.78s to AA	2025-07-20	2025 ISI Summer Regional Championship - SCST venue
200 Backstroke	SCY	2:12.37	AA+4.98s to AAA	2025-03-14	2025 ISI Winter 11-14 Age Group Championships venue
50 Breaststroke	SCY	35.36	BB+0.67s to A	2024-07-14	2024 IL SCST Summer Regional Championships venue
200 Breaststroke	SCY	2:42.07	BB+5.28s to A	2024-07-12	2024 IL SCST Summer Regional Championships venue
50 Butterfly	SCY	28.89	A+0.40s to AA	2025-07-20	2025 ISI Summer Regional Championship - SCST venue
200 Butterfly	SCY	2:16.32	A+0.53s to AA	2025-07-20	2025 ISI Summer Regional Championship - SCST venue
200 Individual Medley	SCY	2:15.09	AA+5.70s to AAA	2025-03-15	2025 ISI Winter 11-14 Age Group Championships venue
400 Individual Medley	SCY	4:56.99	A+7.20s to AA	2024-07-12	2024 IL SCST Summer Regional Championships venue
100 Freestyle	LCM	1:08.86	BB+1.77s to A	2024-05-18	2024 CW May Showers Meet venue
200 Freestyle	LCM	2:24.16	A+4.47s to AA	2024-05-31	2024 LSC Duel in the Pool venue
400 Freestyle	LCM	5:00.44	A+4.75s to AA	2024-05-17	2024 CW May Showers Meet venue
800 Freestyle	LCM	9:58.26	AA+7.97s to AAA	2025-07-24	Illinois Swimming Age Group Champs LC 25 venue
1500 Freestyle	LCM	18:59.17	AA+8.58s to AAA	2025-07-27	Illinois Swimming Age Group Champs LC 25 venue
50 Backstroke	LCM	35.96	BB+0.57s to A	2024-05-31	2024 LSC Duel in the Pool venue
100 Backstroke	LCM	1:14.59	A+2.80s to AA	2024-07-19	2024 IL Swimming LC Age Group Championships venue
200 Backstroke	LCM	2:32.33	AA+3.24s to AAA	2025-07-24	Illinois Swimming Age Group Champs LC 25
100 Breaststroke	LCM	1:31.26	B+0.97s to BB	2024-05-19	2024 CW May Showers Meet venue
100 Butterfly	LCM	1:12.71	BB+0.62s to A	2024-07-21	2024 IL Swimming LC Age Group Championships venue
200 Butterfly	LCM	2:34.52	AA+6.03s to AAA	2025-07-24	Illinois Swimming Age Group Champs LC 25 venue
200 Individual Medley	LCM	2:33.71	AA+4.12s to AAA	2025-07-27	Illinois Swimming Age Group Champs LC 25 venue
400 Individual Medley	LCM	5:20.65	AA+1.06s to AAA	2025-07-26	Illinois Swimming Age Group Champs LC 25 venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.

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
50 Freestyle	SCY	22.36	flying	200 Free Relay (leg 2)	2025-07-20	2025 ISI Summer Regional Championship - SCST
100 Freestyle	SCY	59.32	flying	400 Medley Relay (leg 4)	2024-03-09	2024 IL Swimming SC Age Group Championships
100 Freestyle	SCY	57.80	flying	400 Free Relay (leg 4)	2025-03-16	2025 ISI Winter 11-14 Age Group Championships
100 Freestyle	LCM	1:04.41	flying	400 Medley Relay (leg 4)	2025-07-27	Illinois Swimming Age Group Champs LC 25
100 Freestyle	LCM	1:03.85	flying	400 Free Relay (leg 4)	2025-07-26	Illinois Swimming Age Group Champs LC 25
100 Breaststroke	LCM	1:28.76	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

3870 points (6/6 events)

Event	Time	Points
500 FR SCY	5:20.77	733
200 BK SCY	2:12.37	672
200 BR SCY	2:42.07	530
200 FL SCY	2:16.32	641
200 IM SCY	2:15.09	674
400 IM SCY	4:56.99	620

IMR 13-14 · LCM

2952 points (5/5 events)

Event	Time	Points
200 FR LCM	2:24.16	620
100 BK LCM	1:14.59	596
100 BR LCM	1:31.26	456
100 FL LCM	1:12.71	570
200 IM LCM	2:33.71	710

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

PR splits

100 Freestyle SCY 55.99

27.14

28.85

Front half 27.14s · back half 28.85s

200 Freestyle SCY 2:08.09

29.21

32.95

33.92

32.01

Front half 62.16s · back half 65.93s

500 Freestyle SCY 5:20.77

27.87

30.77

31.84

32.82

32.87

33.09

33.30

33.45

33.15

31.61

Front half 156.17s · back half 164.60s

1000 Freestyle SCY 11:11.45 RT 0.71s

28.22

31.33

32.63

33.32

33.67

34.02

34.45

34.41

34.55

34.28

33.97

34.32

34.43

34.05

33.91

34.13

34.23

34.50

32.71

Front half 330.88s · back half 340.57s

100 Backstroke SCY 1:01.87

30.19

31.68

Front half 30.19s · back half 31.68s

200 Backstroke SCY 2:12.37 RT 0.72s

30.80

33.38

34.67

33.52

Front half 64.18s · back half 68.19s

200 Breaststroke SCY 2:42.07

36.12

41.29

42.38

42.28

Front half 77.41s · back half 84.66s

200 Butterfly SCY 2:16.32

28.86

34.29

35.26

37.91

Front half 63.15s · back half 73.17s

200 Individual Medley SCY 2:15.09 RT 0.72s

29.72

33.54

40.66

31.17

Front half 63.26s · back half 71.83s

400 Individual Medley SCY 4:56.99

31.04

36.29

37.65

36.84

44.28

44.25

33.79

32.85

Front half 141.82s · back half 155.17s

100 Freestyle LCM 1:08.86

32.76

36.10

Front half 32.76s · back half 36.10s

200 Freestyle LCM 2:24.16

32.74

36.99

38.06

36.37

Front half 69.73s · back half 74.43s

400 Freestyle LCM 5:00.44

70.82

76.93

77.75

74.94

Front half 147.75s · back half 152.69s

800 Freestyle LCM 9:58.26 RT 0.77s

31.29

35.91

36.73

37.65

37.59

37.79

37.44

38.53

38.24

37.74

37.82

39.02

38.35

38.81

38.65

36.70

Front half 292.93s · back half 305.33s

1500 Freestyle LCM 18:59.17

31.99

36.35

37.21

37.91

75.16

76.87

38.82

38.99

77.17

77.47

77.05

77.40

76.84

76.97

76.46

38.08

38.36

75.34

37.50

37.23

Front half 527.94s · back half 611.23s

100 Backstroke LCM 1:14.59

36.18

38.41

Front half 36.18s · back half 38.41s

200 Backstroke LCM 2:32.33 split/total mismatch

35.75

38.79

39.57

38.22

100 Breaststroke LCM 1:31.26

41.86

49.40

Front half 41.86s · back half 49.40s

100 Butterfly LCM 1:12.71

33.40

39.31

Front half 33.40s · back half 39.31s

200 Butterfly LCM 2:34.52

33.03

39.25

40.30

41.94

Front half 72.28s · back half 82.24s

200 Individual Medley LCM 2:33.71

33.85

38.50

45.22

36.14

Front half 72.35s · back half 81.36s

400 Individual Medley LCM 5:20.65 RT 0.80s

34.24

39.10

39.90

39.41

47.03

46.42

38.03

36.52

Front half 152.65s · back half 168.00s

Reaction time

fastest 0.70s average 0.738s slowest 0.80s 11 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 27.89 1 swim

100 Freestyle SCY 55.99 2 swims

200 Freestyle SCY 2:08.09 1 swim

500 Freestyle SCY 5:20.77 3 swims

1000 Freestyle SCY 11:11.45 2 swims

50 Backstroke SCY 28.97 3 swims

100 Backstroke SCY 1:01.87 5 swims

200 Backstroke SCY 2:12.37 5 swims

50 Breaststroke SCY 35.36 1 swim

200 Breaststroke SCY 2:42.07 1 swim

50 Butterfly SCY 28.89 2 swims

200 Butterfly SCY 2:16.32 5 swims

200 Individual Medley SCY 2:15.09 5 swims

400 Individual Medley SCY 4:56.99 1 swim

100 Freestyle LCM 1:08.86 1 swim

200 Freestyle LCM 2:24.16 2 swims

400 Freestyle LCM 5:00.44 2 swims

800 Freestyle LCM 9:58.26 4 swims

1500 Freestyle LCM 18:59.17 2 swims

50 Backstroke LCM 35.96 1 swim

100 Backstroke LCM 1:14.59 5 swims

200 Backstroke LCM 2:32.33 4 swims

100 Breaststroke LCM 1:31.26 1 swim

100 Butterfly LCM 1:12.71 4 swims

200 Butterfly LCM 2:34.52 3 swims

200 Individual Medley LCM 2:33.71 5 swims

400 Individual Medley LCM 5:20.65 1 swim