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SF MARATHON 1ST HALF 2025

Sam Xi

Sunnyvale, CA

Bib: 10778 M 34

0:00
0:00
/ mi
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Overall
#0 / 7100
Top 5%
Gender (Male)
#0 / 3977
Top 8%
Division (M30-34)
#0 / 872
Top 7%
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
8:03/mi
14:35
→ flat
12 ft elev
5.34M
8:02/mi
42:58
↑ 80↓ 74
19 ft elev
6.15M
8:00/mi
49:27
↑ 1262.8%
149 ft elev
10.54M
7:45/mi
1:23:28
↑ 230↓ 3610.6%
20 ft elev
11.05M
9:28/mi
1:28:18
↑ 1726.4%
213 ft elev
Finish· 13.11 mi
8:10/mi
1:45:06
↑ 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
49:278:02 /mi⚡ faster
2nd Half
55:398:00 /mi+12.5%
Positive split — 12.5% 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
14:358:031.81 mi14:35
8:03
-
5.34M
42:588:033.53 mi28:23
8:02
-0:01
6.15M
49:278:020.81 mi6:29
8:00
-0:02
10.54M
1:23:287:554.39 mi34:01
7:45
-0:15
11.05M
1:28:187:590.51 mi4:50
9:28
+1:43
Finish(13.11 mi)
1:45:068:012.06 mi16:48
8:10
-1:18
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:45 /mi

Average Pace

8:01 /mi

Slowest Pace

9:28 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

34:01

32% of race

Time at Steady Pace

1:06:15

63% of race

Time at Slower Pace

4:50

5% of race

Average Pace: 8:01 /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. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
1.81M1.81 mi691577123691577123
5.34M3.53 mi637+54537+40113+10645544110
6.15M0.81 mi598+39505+32103+1037032063
10.54M4.39 mi424+174365+14073+3032528654
11.05M0.51 mi385+39333+3266+716314628
Finish(13.11 mi)2.06 mi385334-164+241135567

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 10%
~flat
+4ft-3ft

Overall

691

Males

577

M30-34

123

1.81M→5.34M

1.8 - 5.3 mi

Top 9%
×4story building
+80ft-74ft

Overall

645

Males

544

M30-34

110

5.34M→6.15M

5.3 - 6.2 mi

Top 5%
×10story building
+126ft-4ft

Overall

370

Males

320

M30-34

63

6.15M→10.54M

6.2 - 10.5 mi

Top 5%
×21story building
+230ft-361ft

Overall

325

Males

286

M30-34

54

10.54M→11.05M

10.5 - 11.1 mi

Top 2%
×14story building
+172ft-0ft

Overall

163

Males

146

M30-34

28

11.05M→Finish

11.1 - 13.1 mi

Top 6%
×7story building
+97ft-114ft

Overall

411

Males

355

M30-34

67

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.81M-#691
1.81M → 5.34M
46100+54
#691 → #637
5.34M → 6.15M
443+39
#637 → #598
6.15M → 10.54M
5179+174
#598 → #424
10.54M → 11.05M
140+39
#424 → #385
11.05M → Finish
1313*0
#385 → #385
TOTALS
69375*+306
#691 → #385

* 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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Race Place Events