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SF MARATHON 1ST HALF 2026

Jacob Zhong

Belmont, CA

Bib: 18291 M 26

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Male)
#0 / 3619
Division (M25-29)
#0 / 796
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
2M
12:22/mi
24:45
→ flat
12 ft elev
4M
12:36/mi
49:57
↑ 67↓ 69
10 ft elev
6M
12:16/mi
1:14:30
↑ 1231.1%
126 ft elev
8M
12:27/mi
1:39:24
↑ 166↓ 531.1%
246 ft elev
9.6M
12:27/mi
1:59:20
↑ 68↓ 1931.5%
126 ft elev
10M
24:14/mi
2:09:01
↓ 241.1%
90 ft elev
10.5M
6:26/mi
2:12:14
↓ 732.7%
18 ft elev
12M
17:11/mi
2:38:01
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
11:46/mi
2:51:04
↑ 14↓ 891.3%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:14:3012:25 /mi⚡ faster
2nd Half
1:36:3413:35 /mi+29.6%
Positive split — 29.6% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:14:3724:4512:2224:45
12:22
-
4M
4.00 mi07:39:4949:5712:2925:12
12:36
+0:14
6M
6.00 mi08:04:221:14:3012:2524:33
12:16
-0:20
8M
8.00 mi08:29:161:39:2412:2624:54
12:27
+0:11
9.6M
9.60 mi08:49:121:59:2012:2619:56
12:27
0:00
10M
10.00 mi08:58:532:09:0112:549:41
24:14
+11:47
10.5M
10.50 mi09:02:062:12:1412:363:13
6:26
-17:48
12M
12.00 mi09:27:532:38:0113:1025:47
17:11
+10:45
Finish
13.11 mi09:40:562:51:0413:0313:03
11:46
-5:25

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:26 /mi

Average Pace

13:03 /mi

Slowest Pace

24:14 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13

2% of race

Time at Steady Pace

2:12:23

77% of race

Time at Slower Pace

35:28

21% of race

Average Pace: 13:03 /mi

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

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

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

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2M
2.00 mi07:14:3724:4512:2224:45
12:22
#6173
4M
4.00 mi07:39:4949:5712:2925:12
12:36
#6050
6M
6.00 mi08:04:221:14:3012:2524:33
12:16
#5837
8M
8.00 mi08:29:161:39:2412:2624:54
12:27
#5647
9.6M
9.60 mi08:49:121:59:2012:2619:56
12:27
#5795
10M
10.00 mi08:58:532:09:0112:549:41
24:14
#5781
10.5M
10.50 mi09:02:062:12:1412:363:13
6:26
#5787
12M
12.00 mi09:27:532:38:0113:1025:47
17:11
#5702
Finish
13.11 mi09:40:562:51:0413:0313:03
11:46
#5620
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 83%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

12:54

Segment Time

14:20/mi

Pace

0.90 mi

Distance

Overall

5486

Men

3155

Division

707

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi6173349777849672908661
4M4.00 mi2.00 mi6050+1233448+49772+659113389755
6M6.00 mi2.00 mi5837+2133381+67762+1053393178727
8M8.00 mi2.00 mi5647+1903314+67751+1149963066695
9.6M9.60 mi1.60 mi5795-1483361-47763-1260723417769
10M10.00 mi0.40 mi5781+143345+16757+654173120694
10.5M10.50 mi0.50 mi5787-63350-5760-358293312737
12M12.00 mi1.50 mi5702+853312+38751+949672908661
Finish13.11 mi1.11 mi5620+823266+46745+647462801637

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 76%
~flat
+5ft-3ft

Overall

4967

Males

2908

M25-29

662

2M→4M

2.0 - 4.0 mi

Top 90%
×4story building
+67ft-69ft

Overall

5911

Males

3389

M25-29

758

4M→6M

4.0 - 6.0 mi

Top 81%
×9story building
+123ft-9ft

Overall

5339

Males

3178

M25-29

729

6M→8M

6.0 - 8.0 mi

Top 76%
×12story building
+166ft-53ft

Overall

4996

Males

3066

M25-29

696

8M→9.6M

8.0 - 9.6 mi

Top 92%
×13story building
+68ft-193ft

Overall

6072

Males

3417

M25-29

770

9.6M→10M

9.6 - 10.0 mi

Top 82%
×2story building
+0ft-24ft

Overall

5417

Males

3120

M25-29

695

10M→10.5M

10.0 - 10.5 mi

Top 89%
×6story building
+1ft-73ft

Overall

5829

Males

3312

M25-29

738

10.5M→12M

10.5 - 12.0 mi

Top 76%
×21story building
+280ft-26ft

Overall

4967

Males

2908

M25-29

662

12M→Finish

12.0 - 13.1 mi

Top 72%
×7story building
+14ft-89ft

Overall

4746

Males

2801

M25-29

637

Passing Analysis

Category:
Athletes Passed
937*
Passed By
384
Net Change
+553
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#6173
2M → 4M173*50+123#6173#6050
4M → 6M233*20+213#6050#5837
6M → 8M217*27+190#5837#5647
8M → 9.6M39187-148#5647#5795
9.6M → 10M5036+14#5795#5781
10M → 10.5M915-6#5781#5787
10.5M → 12M123*38+85#5787#5702
12M → Finish93*11+82#5702#5620
TOTALS937*384+553

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

Passing Charts

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

Race Place Events

Race Place Events