Mackenzie Guynn
San Francisco, CA
Bib: 11981 F 21
Race Timeline
The Course
Your race, unpacked
See your splits, ranks & AI insights.
Checkpoint Splits
| Checkpoint | Time | Avg Pace | Segment Length | Segment Time | Segment Pace | Trend | Diff |
|---|---|---|---|---|---|---|---|
2.2M | 16:57 | 7:42 | 2.20 mi | 16:57 | 7:42 | - | |
5.7M | 49:57 | 8:46 | 3.50 mi | 33:00 | 9:26 | +1:44 | |
6.43M | 59:15 | 9:13 | 0.73 mi | 9:18 | 12:44 | +3:18 | |
8.3M | 1:12:47 | 8:46 | 1.87 mi | 13:32 | 7:14 | -5:30 | |
11.45M | 1:43:04 | 9:00 | 3.15 mi | 30:17 | 9:37 | +2:23 | |
FINISH(13.11 mi) | 2:00:08 | 9:10 | 1.66 mi | 17:04 | 10:17 | +0:40 |
Checkpoints & Pacing
Pace Line
Fastest Pace
7:14 /mi
Average Pace
9:10 /mi
Slowest Pace
12:44 /mi
Segments
Time at Faster Pace
30:29
25% of race
Time at Steady Pace
1:20:21
67% of race
Time at Slower Pace
9:18
8% of race
Average Pace: 9:10 /mi
Heatmap
Checkpoint and Segment Rankings
| Checkpoint | Seg. Dist | Overall | Females | F20-24 | Seg. Overall | Seg. Females | Seg. F20-24 |
|---|---|---|---|---|---|---|---|
| 2.2M | 2.20 mi | 1036 | 293 | 49 | 1036 | 293 | 49 |
| 5.7M | 3.50 mi | 1003+33 | 278+15 | 46+3 | 1007 | 278 | 43 |
| 6.43M | 0.73 mi | 1015-12 | 279-1 | 45+1 | 1107 | 306 | 54 |
| 8.3M | 1.87 mi | 1000+15 | 268+11 | 46-1 | 911 | 238 | 41 |
| 11.45M | 3.15 mi | 1018-18 | 276-8 | 47-1 | 1133 | 321 | 51 |
| FINISH(13.11 mi) | 1.66 mi | 1052-34 | 293-17 | 50-3 | 1322 | 431 | 70 |
Segment Performance Analysis
Start → 2.2M
0.0 - 2.2 mi
Overall
1036
Females
293
F20-24
49
2.2M→5.7M
2.2 - 5.7 mi
Overall
1007
Females
278
F20-24
43
5.7M→6.43M
5.7 - 6.4 mi
Overall
1107
Females
306
F20-24
54
6.43M→8.3M
6.4 - 8.3 mi
Overall
911
Females
238
F20-24
41
8.3M→11.45M
8.3 - 11.4 mi
Overall
1133
Females
321
F20-24
51
11.45M→FINISH
11.4 - 13.1 mi
Overall
1322
Females
431
F20-24
70
Passing Analysis
| Segment | Passed | Passed By | Net Change | Start Rank | End Rank |
|---|---|---|---|---|---|
| Start → 2.2M | - | - | - | - | #1036 |
| 2.2M → 5.7M | 114 | 81 | +33 | #1036 | #1003 |
| 5.7M → 6.43M | 16 | 28 | -12 | #1003 | #1015 |
| 6.43M → 8.3M | 38 | 23 | +15 | #1015 | #1000 |
| 8.3M → 11.45M | 37* | 55 | -18 | #1000 | #1018 |
| 11.45M → FINISH | 20* | 54 | -34 | #1018 | #1052 |
| TOTALS | 225* | 241 | -16 |
* Includes athletes who did not complete a segment (DNF/DNQ).
Passing Charts
Passing Circle
Position Flow
Race Lanes
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Race managed by
The San Francisco Marathon
