Jack Marcum
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.20 | BB+1.61s to A | 2025-12-14 | 2025 GTWY Jingle Bell Classic fast pool |
| 100 Freestyle | SCY | 57.70 | BB+1.91s to A | 2025-12-13 | 2025 GTWY Jingle Bell Classic fast pool |
| 200 Freestyle | SCY | 2:04.39 | BB+2.20s to A | 2026-02-27 | St. Peters Rec-Plex Swim Team |
| 500 Freestyle | SCY | 5:28.82 | A+11.73s to AA | 2026-02-27 | St. Peters Rec-Plex Swim Team |
| 1000 Freestyle | SCY | 11:18.54 | A+20.15s to AA | 2026-02-27 | St. Peters Rec-Plex Swim Team |
| 25 Backstroke | SCY | 27.04 | 2026-01-01 | ROCKWOOD SWIM CLUB | |
| 50 Backstroke | SCY | 31.93 | B+0.64s to BB | 2025-09-20 | 2025 RCA Fall Classic venue |
| 100 Backstroke | SCY | 56.99 | AA+0.90s to AAA | 2025-09-20 | 2025 RCA Fall Classic |
| 200 Backstroke | SCY | 2:27.55 | B+3.46s to BB | 2025-10-17 | GTWY Halloween Howl |
| 50 Breaststroke | SCY | 37.54 | B+1.75s to BB | 2025-01-11 | 2025 RSCA Polar Dash venue |
| 100 Breaststroke | SCY | 1:18.94 | B+4.05s to BB | 2026-02-06 | GTWY BE MY VALENTINE |
| 200 Breaststroke | SCY | 2:42.17 | BB+11.88s to A | 2023-09-16 | 2023 RSCA Fall Distance Classic |
| 25 Butterfly | SCY | 27.31 | 2020-03-07 | HEATLightning and 8 & Under Champs | |
| 50 Butterfly | SCY | 28.42 | BB+0.03s to A | 2026-02-06 | GTWY BE MY VALENTINE |
| 100 Butterfly | SCY | 1:03.65 | BB+3.26s to A | 2026-02-27 | St. Peters Rec-Plex Swim Team |
| 200 Butterfly | SCY | 2:16.15 | BB+1.66s to A | 2026-02-27 | St. Peters Rec-Plex Swim Team |
| 100 Individual Medley | SCY | 1:10.13 | 2025-09-20 | 2025 RCA Fall Classic venue | |
| 200 Individual Medley | SCY | 2:20.68 | BB+5.29s to A | 2025-12-13 | 2025 GTWY Jingle Bell Classic fast pool |
| 400 Individual Medley | SCY | 4:59.54 | BB+10.05s to A | 2026-02-06 | GTWY BE MY VALENTINE fast pool |
| 50 Freestyle | LCM | 30.53 | BB+1.14s to A | 2026-05-29 | Meet Me In St. Louis Invite |
| 100 Freestyle | LCM | 1:06.18 | BB+1.79s to A | 2026-05-01 | John Traube Memorial 2026 |
| 200 Freestyle | LCM | 2:24.03 | BB+3.44s to A | 2026-05-01 | John Traube Memorial 2026 |
| 400 Freestyle | LCM | 5:02.05 | BB+2.16s to A | 2026-05-01 | John Traube Memorial 2026 |
| 800 Freestyle | LCM | 10:35.91 | BB+14.52s to A | 2025-07-24 | 2025 Ozark Long Course Champs |
| 50 Backstroke | LCM | 45.03 | +5.54s to B | 2023-05-05 | 2023 John Traube Memorial Meet |
| 100 Backstroke | LCM | 1:19.89 | B+2.20s to BB | 2026-05-29 | Meet Me In St. Louis Invite |
| 200 Backstroke | LCM | 2:44.19 | BB+8.20s to A | 2025-07-24 | 2025 Ozark Long Course Champs venue |
| 50 Breaststroke | LCM | 53.39 | +9.30s to B | 2022-06-03 | Meet Me in St. Louis |
| 100 Breaststroke | LCM | 1:33.28 | B+5.99s to BB | 2025-05-03 | John Traube Memorial 2025 venue |
| 200 Breaststroke | LCM | 3:24.17 | +0.28s to B | 2025-05-04 | John Traube Memorial 2025 venue |
| 50 Butterfly | LCM | 33.03 | BB+1.04s to A | 2025-07-24 | 2025 Ozark Long Course Champs |
| 100 Butterfly | LCM | 1:11.84 | BB+2.95s to A | 2026-05-29 | Meet Me In St. Louis Invite |
| 200 Butterfly | LCM | 2:39.47 | BB+5.08s to A | 2026-05-01 | John Traube Memorial 2026 |
| 200 Individual Medley | LCM | 2:46.64 | BB+9.75s to A | 2025-05-02 | John Traube Memorial 2025 venue |
| 400 Individual Medley | LCM | 5:44.02 | BB+8.53s to A | 2026-05-01 | John Traube Memorial 2026 |
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 |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.65 | flying | 200 Free Relay (leg 2) | 2024-11-24 | 2024 Ozark A Championships |
| 100 Freestyle | SCY | 1:00.91 | flying | 400 Medley Relay (leg 4) | 2025-03-01 | 2025 Ozark Division I Championship |
| 100 Freestyle | SCY | 59.55 | flying | 400 Free Relay (leg 3) | 2025-03-02 | 2025 Ozark Division I Championship |
| 50 Butterfly | SCY | 30.15 | flying | 200 Medley Relay (leg 3) | 2025-03-01 | 2025 Ozark Division I Championship |
| 50 Freestyle | LCM | 30.93 | flying | 200 Free Relay (leg 2) | 2025-07-27 | 2025 Ozark Long Course Champs |
| 100 Freestyle | LCM | 1:08.38 | flying | 400 Free Relay (leg 3) | 2025-07-26 | 2025 Ozark Long Course Champs |
| 50 Butterfly | LCM | 32.44 | flying | 200 Medley Relay (leg 3) | 2025-07-27 | 2025 Ozark Long Course Champs |
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
3539 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:28.82 | 680 |
| 200 BK SCY | 2:27.55 | 485 |
| 200 BR SCY | 2:42.17 | 529 |
| 200 FL SCY | 2:16.15 | 644 |
| 200 IM SCY | 2:20.68 | 597 |
| 400 IM SCY | 4:59.54 | 604 |
IMR 13-14 · SCY
3077 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:04.39 | 634 |
| 100 BK SCY | 56.99 | 826 |
| 100 BR SCY | 1:18.94 | 447 |
| 100 FL SCY | 1:03.65 | 573 |
| 200 IM SCY | 2:20.68 | 597 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 57.70
Front half 28.15s · back half 29.55s
200 Freestyle SCY 2:04.39
Front half 60.86s · back half 63.53s
500 Freestyle SCY 5:28.82
Front half 161.65s · back half 167.17s
1000 Freestyle SCY 11:18.54
Front half 337.70s · back half 340.84s
50 Backstroke SCY 31.93
Front half 15.88s · back half 16.05s
100 Backstroke SCY 56.99 split/total mismatch
200 Breaststroke SCY 2:42.17
100 Butterfly SCY 1:03.65
Front half 28.92s · back half 34.73s
200 Butterfly SCY 2:16.15
Front half 64.55s · back half 71.60s
100 Individual Medley SCY 1:10.13
Front half 31.87s · back half 38.26s
200 Individual Medley SCY 2:20.68
Front half 66.59s · back half 74.09s
400 Individual Medley SCY 4:59.54
Front half 142.48s · back half 157.06s
800 Freestyle LCM 10:35.91 split/total mismatch
100 Backstroke LCM 1:19.89
Front half 38.83s · back half 41.06s
200 Backstroke LCM 2:44.19
Front half 80.39s · back half 83.80s
200 Breaststroke LCM 3:24.17
Front half 101.54s · back half 102.63s
100 Butterfly LCM 1:11.84
Front half 33.52s · back half 38.32s
200 Individual Medley LCM 2:46.64
Front half 76.90s · back half 89.74s
Progression
Faster times are higher. One card per event, all courses & history.