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SF MARATHON 1ST HALF 2025

Olivia Xu

Santa Clara, CA

Bib: 14620 F 19

0:00
0:00
/ mi
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Overall
#0 / 7100
Gender (Female)
#0 / 3107
Top 42%
F19 & Under
#0 / 80
Top 50%
Race Day Weather
56°/46°F
light rain

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.81M
9:45/mi
17:39
→ flat
12 ft elev
5.34M
10:06/mi
53:18
↑ 80↓ 74
19 ft elev
6.15M
10:35/mi
1:01:52
↑ 1262.8%
149 ft elev
10.54M
11:01/mi
1:50:12
↑ 230↓ 3610.6%
20 ft elev
11.05M
15:23/mi
1:58:03
↑ 1726.4%
213 ft elev
Finish· 13.11 mi
10:54/mi
2:20:29
↑ 97↓ 1140.2%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.15M
1:01:5210:04 /mi⚡ faster
2nd Half
1:18:3711:18 /mi+27.1%
Positive split — 27.1% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.81M
17:399:451.81 mi17:39
9:45
-
5.34M
53:189:593.53 mi35:39
10:06
+0:21
6.15M
1:01:5210:040.81 mi8:34
10:35
+0:29
10.54M
1:50:1210:274.39 mi48:20
11:01
+0:26
11.05M
1:58:0310:410.51 mi7:51
15:23
+4:22
Finish(13.11 mi)
2:20:2910:432.06 mi22:26
10:54
-4:29
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:45 /mi

Average Pace

10:43 /mi

Slowest Pace

15:23 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

17:39

13% of race

Time at Steady Pace

1:54:59

82% of race

Time at Slower Pace

7:51

6% of race

Average Pace: 10:43 /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. DistOverallFemalesF19 & UnderSeg. OverallSeg. FemalesSeg. F19 & Under
1.81M1.81 mi34191100383419110038
5.34M3.53 mi3498-791142-4235+33601118435
6.15M0.81 mi3491+71134+8353531116034
10.54M4.39 mi3826-3351305-17139-44272153640
11.05M0.51 mi3828-21309-438+14202153342
Finish(13.11 mi)2.06 mi3806+22130940-23697133740

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 48%
~flat
+4ft-3ft

Overall

3419

Females

1100

F15-19

36

1.81M→5.34M

1.8 - 5.3 mi

Top 51%
×4story building
+80ft-74ft

Overall

3601

Females

1184

F15-19

33

5.34M→6.15M

5.3 - 6.2 mi

Top 50%
×10story building
+126ft-4ft

Overall

3531

Females

1160

F15-19

32

6.15M→10.54M

6.2 - 10.5 mi

Top 60%
×21story building
+230ft-361ft

Overall

4272

Females

1536

F15-19

38

10.54M→11.05M

10.5 - 11.1 mi

Top 59%
×14story building
+172ft-0ft

Overall

4202

Females

1533

F15-19

38

11.05M→Finish

11.1 - 13.1 mi

Top 52%
×7story building
+97ft-114ft

Overall

3697

Females

1337

F15-19

38

Passing Analysis

Category:
Passed
471*
Passed By
858
Net Change
-387
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.81M----#3419
1.81M → 5.34M209*288-79#3419#3498
5.34M → 6.15M6659+7#3498#3491
6.15M → 10.54M69*404-335#3491#3826
10.54M → 11.05M4648-2#3826#3828
11.05M → Finish81*59+22#3828#3806
TOTALS471*858-387

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

Passing Charts

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Passing Circle

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Position Flow

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Race Lanes

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

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