swimMackenzie Nibbe
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.58 | A+0.09s to AA | 2025-09-20 | 2025 SI PS Freestyle Festival Sat |
| 100 Freestyle | SCY | 1:01.78 | BB+1.69s to A | 2026-02-01 | 2026 SBA All Ages NTS Meet venue |
| 200 Freestyle | SCY | 2:15.40 | BB+5.71s to A | 2025-08-02 | 2025 SI CAST All Ages Wrap Up Meet August 2-3 venue |
| 50 Backstroke | SCY | 31.64 | BB+0.85s to A | 2026-01-17 | 2026 SBA All Ages A-BB Meet venue |
| 100 Backstroke | SCY | 1:12.53 | B+2.04s to BB | 2025-08-02 | 2025 SI CAST All Ages Wrap Up Meet August 2-3 venue |
| 200 Backstroke | SCY | 2:40.81 | B+7.72s to BB | 2025-03-16 | 2025 SI CAST All Ages NTS venue |
| 100 Breaststroke | SCY | 1:25.03 | B+3.84s to BB | 2026-01-31 | 2026 SBA All Ages NTS Meet venue |
| 50 Butterfly | SCY | 34.01 | B+1.22s to BB | 2024-07-21 | 2024 SI SBA All Ages BC Last Chance Meet July venue |
| 100 Butterfly | SCY | 1:12.22 | B+1.83s to BB | 2026-02-01 | 2026 SBA All Ages NTS Meet venue |
| 200 Individual Medley | SCY | 2:37.06 | B+0.17s to BB | 2026-02-01 | 2026 SBA All Ages NTS Meet venue |
| 50 Freestyle | LCM | 30.05 | AA+1.06s to AAA | 2026-05-23 | 2026 SI HSA-A All Ages NTS May 23-24 venue |
| 100 Freestyle | LCM | 1:07.96 | A+2.67s to AA | 2026-06-19 | 2026 SI Splash and Dash fast pool |
| 200 Freestyle | LCM | 2:31.83 | BB+4.04s to A | 2026-06-27 | 2026 SI MRA LC Distance Meet venue |
| 400 Freestyle | LCM | 5:45.55 | B+8.56s to BB | 2026-06-06 | 2026 SI SOL Splash and Dash Max Jun 6-7 fast pool |
| 50 Backstroke | LCM | 36.94 | BB+0.65s to A | 2026-06-19 | 2026 SI Splash and Dash fast pool |
| 100 Backstroke | LCM | 1:20.66 | BB+4.97s to A | 2026-06-07 | 2026 SI SOL Splash and Dash Max Jun 6-7 fast pool |
| 200 Backstroke | LCM | 2:32.44 | AA+3.25s to AAA | 2025-07-11 | 2025 SI SDSA All Ages NTS Meet |
| 50 Breaststroke | LCM | 40.91 | BB+0.62s to A | 2026-06-19 | 2026 SI Splash and Dash fast pool |
| 100 Breaststroke | LCM | 1:36.72 | B+3.73s to BB | 2026-06-06 | 2026 SI SOL Splash and Dash Max Jun 6-7 fast pool |
| 200 Individual Medley | LCM | 2:57.85 | BB+11.16s to A | 2026-06-07 | 2026 SI SOL Splash and Dash Max Jun 6-7 fast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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 15-16 · LCM
1758 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 5:45.55 | 458 |
| 200 BK LCM | 2:32.44 | 776 |
| 200 IM LCM | 2:57.85 | 524 |
| 200 BR LCM | — | 0 |
| 200 FL LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 15-16 · SCY
2419 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:15.40 | 562 |
| 100 BK SCY | 1:12.53 | 462 |
| 100 BR SCY | 1:25.03 | 436 |
| 100 FL SCY | 1:12.22 | 460 |
| 200 IM SCY | 2:37.06 | 499 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:01.78
Front half 29.25s · back half 32.53s
100 Breaststroke SCY 1:25.03
Front half 39.42s · back half 45.61s
100 Butterfly SCY 1:12.22
Front half 32.00s · back half 40.22s
200 Individual Medley SCY 2:37.06
Front half 72.32s · back half 84.74s
100 Freestyle LCM 1:07.96
Front half 31.78s · back half 36.18s
200 Freestyle LCM 2:31.83
Front half 71.94s · back half 79.89s
400 Freestyle LCM 5:45.55
Front half 170.64s · back half 174.91s
100 Backstroke LCM 1:20.66
Front half 37.79s · back half 42.87s
100 Breaststroke LCM 1:36.72 · 15.0 min after 400 Freestyle
Front half 44.79s · back half 51.93s
200 Individual Medley LCM 2:57.85 · 22.0 min after 50 Breaststroke
Front half 83.38s · back half 94.47s
Progression
Faster times are higher. One card per event, all courses & history.