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SF MARATHON 1ST HALF 2026

Boris Chan

Bib: 17375•M•Age: 27

SF, CA

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

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
10:50/mi
21:40
→ flat
4M
11:02/mi
43:43
↑ 67↓ 69
6M
11:21/mi
1:06:25
↑ 1231.1%
8M
10:52/mi
1:28:08
↑ 166↓ 531.1%
9.6M
10:52/mi
1:45:31
↑ 68↓ 1931.5%
10M
20:24/mi
1:53:40
↓ 241.1%
10.5M
5:12/mi
1:56:16
↓ 732.7%
12M
15:48/mi
2:19:58
↑ 2803.2%
Finish· 13.11 mi
10:27/mi
2:31:33
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:06:25
Pace11:04 /mi
2nd Half
Distance7.11 mi
Time1:25:08
Pace11:59 /mi
📊Positive Split: 28.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:07:5121:4010:5021:40
10:50
-
4M
4.00 mi07:29:5443:4310:5622:03
11:02
+0:12
6M
6.00 mi07:52:361:06:2511:0422:42
11:21
+0:19
8M
8.00 mi08:14:191:28:0811:0121:43
10:52
-0:29
9.6M
9.60 mi08:31:421:45:3110:5917:23
10:52
0:00
10M
10.00 mi08:39:511:53:4011:228:09
20:24
+9:32
10.5M
10.50 mi08:42:271:56:1611:042:36
5:12
-15:12
12M
12.00 mi09:06:092:19:5811:4023:42
15:48
+10:36
Finish
13.11 mi09:17:442:31:3311:3411:35
10:27
-5:21

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

5:12 /mi

Average Pace

11:34 /mi

Slowest Pace

20:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36

2% of race

Time at Steady Pace

1:57:06

77% of race

Time at Slower Pace

31:51

21% of race

Average Pace: 11:34 /mi

Loading chart...
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 mi07:07:5121:4010:5021:40
10:50
#4448
4M
4.00 mi07:29:5443:4310:5622:03
11:02
#4302
6M
6.00 mi07:52:361:06:2511:0422:42
11:21
#4265
8M
8.00 mi08:14:191:28:0811:0121:43
10:52
#3973
9.6M
9.60 mi08:31:421:45:3110:5917:23
10:52
#4135
10M
10.00 mi08:39:511:53:4011:228:09
20:24
#4066
10.5M
10.50 mi08:42:271:56:1611:042:36
5:12
#4053
12M
12.00 mi09:06:092:19:5811:4023:42
15:48
#4081
Finish
13.11 mi09:17:442:31:3311:3411:35
10:27
#3982
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 55%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:45

Segment Time

11:57/mi

Pace

0.90 mi

Distance

Overall

3610

Men

2312

Division

536

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi444828016324103(Top 62%)2533(Top 70%)588(Top 74%)
4M4.00 mi2.00 mi4302+1462729+72625+74237(Top 64%)2688(Top 74%)621(Top 78%)
6M6.00 mi2.00 mi4265+372715+146254309(Top 66%)2722(Top 75%)636(Top 80%)
8M8.00 mi2.00 mi3973+2922584+131594+313393(Top 52%)2275(Top 63%)525(Top 66%)
9.6M9.60 mi1.60 mi4135-1622641-57608-144908(Top 75%)2870(Top 79%)662(Top 83%)
10M10.00 mi0.40 mi4066+692598+43602+63679(Top 56%)2339(Top 65%)538(Top 68%)
10.5M10.50 mi0.50 mi4053+132589+9601+13687(Top 56%)2382(Top 66%)555(Top 70%)
12M12.00 mi1.50 mi4081-282587+2600+14103(Top 62%)2533(Top 70%)588(Top 74%)
Finish13.11 mi1.11 mi3982+992535+52592+83415(Top 52%)2186(Top 60%)521(Top 65%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 62%
~flat
+5ft-3ft

Overall

4103

Males

2533

M25-29

589

2M→4M

2.0 - 4.0 mi

Top 64%
×4story building
+67ft-69ft

Overall

4237

Males

2688

M25-29

623

4M→6M

4.0 - 6.0 mi

Top 66%
×9story building
+123ft-9ft

Overall

4309

Males

2722

M25-29

638

6M→8M

6.0 - 8.0 mi

Top 52%
×12story building
+166ft-53ft

Overall

3393

Males

2275

M25-29

526

8M→9.6M

8.0 - 9.6 mi

Top 75%
×13story building
+68ft-193ft

Overall

4908

Males

2870

M25-29

663

9.6M→10M

9.6 - 10.0 mi

Top 56%
×2story building
+0ft-24ft

Overall

3679

Males

2339

M25-29

539

10M→10.5M

10.0 - 10.5 mi

Top 56%
×6story building
+1ft-73ft

Overall

3687

Males

2382

M25-29

556

10.5M→12M

10.5 - 12.0 mi

Top 62%
×21story building
+280ft-26ft

Overall

4103

Males

2533

M25-29

589

12M→Finish

12.0 - 13.1 mi

Top 52%
×7story building
+14ft-89ft

Overall

3415

Males

2186

M25-29

521

Passing Analysis

Category:
Athletes Passed
1078*
Passed By
612
Net Change
+466
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4448
2M → 4M259113+146#4448#4302
4M → 6M143*106+37#4302#4265
6M → 8M340*48+292#4265#3973
8M → 9.6M35197-162#3973#4135
9.6M → 10M8213+69#4135#4066
10M → 10.5M185+13#4066#4053
10.5M → 12M92*120-28#4053#4081
12M → Finish109*10+99#4081#3982
TOTALS1078*612+466

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

📊

Passing Visuals

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