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SF MARATHON 1ST HALF 2023

Stephanie Nguyen

Fremont, CA

Bib: 13918 F 21

0:00
0:00
/ mi
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Overall
#0 / 6072
Top 19%
Gender (Female)
#0 / 2732
Top 11%
F20-29
#0 / 376
Top 15%
Race Day Weather
60°/50°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
1.40M
8:35/mi
12:01
→ flat
2.13M
16:56/mi
24:23
→ flat
6.43M
10:23/mi
1:09:02
↑ 274↓ 78
6.62M
-31:-46/mi
1:03:11
↑ 16
10.65M
8:36/mi
1:37:52
↑ 153↓ 361
Finish· 13.11 mi
8:11/mi
1:57:59
↑ 244↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:03:119:33 /mi+13.3%
2nd Half
54:488:27 /mi✓ faster
Negative split — 13.3% faster in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.40M
12:018:351.40 mi12:01
8:35
-
2.13M
24:2311:270.73 mi12:22
16:56
+8:21
6.43M
1:09:0210:444.30 mi44:39
10:23
-6:33
6.62M
1:03:119:330.19 mi
-31:-46
-42:09
10.65M
1:37:529:114.03 mi34:41
8:36
+40:22
Finish(13.11 mi)
1:57:599:002.46 mi20:07
8:11
-0:25
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-32:-46 /mi

Average Pace

9:00 /mi

Slowest Pace

16:56 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:57:59

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:00 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF20-29Seg. OverallSeg. FemalesSeg. F20-29
1.40M1.40 mi168050994168050994
2.13M0.73 mi1426+254416+9381+13135039072
6.43M4.30 mi1273+153336+8065+16125532560
6.62M0.19 mi1280-7346-1062+3---
10.65M4.03 mi1214+66303+4358+4117230255
Finish(13.11 mi)2.46 mi1170+44295+857+1120931760

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 28%
~flat
+3ft-2ft

Overall

1680

Females

509

F20-24

94

1.40M→2.13M

1.4 - 2.1 mi

Top 22%
~flat
+3ft-1ft

Overall

1350

Females

390

F20-24

72

2.13M→6.43M

2.1 - 6.4 mi

Top 21%
×17story building
+274ft-78ft

Overall

1255

Females

325

F20-24

60

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F20-24

-

6.62M→10.65M

6.6 - 10.7 mi

Top 19%
×21story building
+153ft-361ft

Overall

1172

Females

302

F20-24

55

10.65M→Finish

10.7 - 13.1 mi

Top 20%
×17story building
+244ft-114ft

Overall

1209

Females

317

F20-24

60

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#1680
1.40M → 2.13M
34288+254
#1680 → #1426
2.13M → 6.43M
71224*+153
#1426 → #1273
6.43M → 6.62M
4841-7
#1273 → #1280
6.62M → 10.65M
59125*+66
#1280 → #1214
10.65M → Finish
3276*+44
#1214 → #1170
TOTALS
244754*+510
#1680 → #1170

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Public Race Data

The San Francisco Marathon

The San Francisco Marathon

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