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SF MARATHON 1ST HALF 2025

Kevin Tong

San Jose, CA

Bib: 16960 M 22

0:00
0:00
/ mi
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Overall
#0 / 7100
Top 48%
Gender (Male)
#0 / 3977
M20-29
#0 / 437
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
9:44/mi
17:37
→ flat
5.34M
10:12/mi
53:37
↑ 80↓ 74
6.15M
10:34/mi
1:02:10
↑ 126
10.54M
10:12/mi
1:46:55
↑ 230↓ 361
11.05M
14:05/mi
1:54:06
↑ 172
Finish· 13.11 mi
11:18/mi
2:17:22
↑ 97↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.15M
1:02:1010:07 /mi⚡ faster
2nd Half
1:15:1210:48 /mi+21.0%
Positive split — 21.0% 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
17:379:441.81 mi17:37
9:44
-
5.34M
53:3710:023.53 mi36:00
10:12
+0:28
6.15M
1:02:1010:070.81 mi8:33
10:34
+0:22
10.54M
1:46:5510:094.39 mi44:45
10:12
-0:22
11.05M
1:54:0610:200.51 mi7:11
14:05
+3:53
Finish(13.11 mi)
2:17:2210:292.06 mi23:16
11:18
-2:47
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:44 /mi

Average Pace

10:29 /mi

Slowest Pace

14:05 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

17:37

13% of race

Time at Steady Pace

1:29:18

65% of race

Time at Slower Pace

30:27

22% of race

Average Pace: 10:29 /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. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
1.81M1.81 mi3376229130333762291303
5.34M3.53 mi3609-2332407-116326-2337362478332
6.15M0.81 mi3572+372396+11323+334832338321
10.54M4.39 mi3347+2252261+135312+1132022173299
11.05M0.51 mi3319+282245+16311+132632178293
Finish(13.11 mi)2.06 mi3444-1252294-49319-841992600340

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 48%
~flat
+4ft-3ft

Overall

3376

Males

2291

M20-24

303

1.81M→5.34M

1.8 - 5.3 mi

Top 53%
×4story building
+80ft-74ft

Overall

3736

Males

2478

M20-24

332

5.34M→6.15M

5.3 - 6.2 mi

Top 49%
×10story building
+126ft-4ft

Overall

3483

Males

2338

M20-24

321

6.15M→10.54M

6.2 - 10.5 mi

Top 45%
×21story building
+230ft-361ft

Overall

3202

Males

2173

M20-24

299

10.54M→11.05M

10.5 - 11.1 mi

Top 46%
×14story building
+172ft-0ft

Overall

3263

Males

2178

M20-24

293

11.05M→Finish

11.1 - 13.1 mi

Top 59%
×7story building
+97ft-114ft

Overall

4199

Males

2600

M20-24

340

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 1.81M-#3376
1.81M → 5.34M
397164*-233
#3376 → #3609
5.34M → 6.15M
4178+37
#3609 → #3572
6.15M → 10.54M
70295*+225
#3572 → #3347
10.54M → 11.05M
2957+28
#3347 → #3319
11.05M → Finish
15631*-125
#3319 → #3444
TOTALS
693625*-68
#3376 → #3444

* 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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