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SF MARATHON 1ST HALF 2025

Janice Guo

Sunnyvale, CA

Bib: 17012 F 24

0:00
0:00
/ mi
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Overall
#0 / 7100
Gender (Female)
#0 / 3107
F20-29
#0 / 410
Race Day Weather
56°/46°F
light rain

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
1.81M
12:03/mi
21:49
→ flat
5.34M
12:50/mi
1:07:08
↑ 80↓ 74
6.15M
13:15/mi
1:17:52
↑ 126
10.54M
14:19/mi
2:20:41
↑ 230↓ 361
11.05M
17:44/mi
2:29:44
↑ 172
Finish· 13.11 mi
13:39/mi
2:57:51
↑ 97↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.15M
1:17:5212:40 /mi⚡ faster
2nd Half
1:39:5914:22 /mi+28.4%
Positive split — 28.4% 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
21:4912:031.81 mi21:49
12:03
-
5.34M
1:07:0812:343.53 mi45:19
12:50
+0:47
6.15M
1:17:5212:400.81 mi10:44
13:15
+0:25
10.54M
2:20:4113:214.39 mi1:02:49
14:19
+1:04
11.05M
2:29:4413:330.51 mi9:03
17:44
+3:25
Finish(13.11 mi)
2:57:5113:342.06 mi28:07
13:39
-4:05
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

12:03 /mi

Average Pace

13:34 /mi

Slowest Pace

17:44 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

21:49

12% of race

Time at Steady Pace

2:26:59

83% of race

Time at Slower Pace

9:03

5% of race

Average Pace: 13:34 /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
1.81M1.81 mi6577279439665772794396
5.34M3.53 mi6569+82769+25389+765632762386
6.15M0.81 mi6526+432747+2238961902547369
10.54M4.39 mi6651-1252829-82396-767242894397
11.05M0.51 mi6620+312810+1939656432289349
Finish(13.11 mi)2.06 mi6539+812770+40393+360732593377

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 93%
~flat
+4ft-3ft

Overall

6577

Females

2794

F20-24

397

1.81M→5.34M

1.8 - 5.3 mi

Top 92%
×4story building
+80ft-74ft

Overall

6563

Females

2762

F20-24

387

5.34M→6.15M

5.3 - 6.2 mi

Top 87%
×10story building
+126ft-4ft

Overall

6190

Females

2547

F20-24

370

6.15M→10.54M

6.2 - 10.5 mi

Top 95%
×21story building
+230ft-361ft

Overall

6724

Females

2894

F20-24

398

10.54M→11.05M

10.5 - 11.1 mi

Top 79%
×14story building
+172ft-0ft

Overall

5643

Females

2289

F20-24

350

11.05M→Finish

11.1 - 13.1 mi

Top 86%
×7story building
+97ft-114ft

Overall

6073

Females

2593

F20-24

377

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.81M-#6577
1.81M → 5.34M
120128*+8
#6577 → #6569
5.34M → 6.15M
1053+43
#6569 → #6526
6.15M → 10.54M
16843*-125
#6526 → #6651
10.54M → 11.05M
536+31
#6651 → #6620
11.05M → Finish
788*+81
#6620 → #6539
TOTALS
310348*+38
#6577 → #6539

* 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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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

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