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SF MARATHON 1ST HALF 2026

Ethan O’Brien

Bib: 17907•M•Age: 29

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
10:41/mi
21:22
→ flat
4M
11:09/mi
43:39
↑ 67↓ 69
6M
12:15/mi
1:08:09
↑ 1231.1%
8M
11:29/mi
1:31:08
↑ 166↓ 531.1%
9.6M
11:29/mi
1:49:31
↑ 68↓ 1931.5%
10M
21:36/mi
1:58:09
↓ 241.1%
10.5M
5:00/mi
2:00:39
↓ 732.7%
12M
15:45/mi
2:24:17
↑ 2803.2%
Finish· 13.11 mi
10:07/mi
2:35:30
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:08:09
Pace11:22 /mi
2nd Half
Distance7.11 mi
Time1:27:21
Pace12:17 /mi
📊Positive Split: 28.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:10:5621:2210:4121:22
10:41
-
4M
4.00 mi07:33:1343:3910:5522:17
11:09
+0:28
6M
6.00 mi07:57:431:08:0911:2224:30
12:15
+1:06
8M
8.00 mi08:20:421:31:0811:2322:59
11:29
-0:46
9.6M
9.60 mi08:39:051:49:3111:2418:23
11:29
0:00
10M
10.00 mi08:47:431:58:0911:498:38
21:36
+10:07
10.5M
10.50 mi08:50:132:00:3911:292:30
5:00
-16:36
12M
12.00 mi09:13:512:24:1712:0123:38
15:45
+10:45
Finish
13.11 mi09:25:042:35:3011:5211:13
10:07
-5:38

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

5:00 /mi

Average Pace

11:52 /mi

Slowest Pace

21:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30

2% of race

Time at Steady Pace

2:00:44

78% of race

Time at Slower Pace

32:16

21% of race

Average Pace: 11:52 /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 mi07:10:5621:2210:4121:22
10:41
#4200
4M
4.00 mi07:33:1343:3910:5522:17
11:09
#4284
6M
6.00 mi07:57:431:08:0911:2224:30
12:15
#4708
8M
8.00 mi08:20:421:31:0811:2322:59
11:29
#4466
9.6M
9.60 mi08:39:051:49:3111:2418:23
11:29
#4727
10M
10.00 mi08:47:431:58:0911:498:38
21:36
#4690
10.5M
10.50 mi08:50:132:00:3911:292:30
5:00
#4642
12M
12.00 mi09:13:512:24:1712:0123:38
15:45
#4511
Finish
13.11 mi09:25:042:35:3011:5211:13
10:07
#4350
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 61%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

11:08

Segment Time

12:22/mi

Pace

0.90 mi

Distance

Overall

4037

Men

2527

Division

588

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi420026816064076(Top 62%)2520(Top 70%)585(Top 73%)
4M4.00 mi2.00 mi4284-842719-38622-164419(Top 67%)2772(Top 77%)637(Top 80%)
6M6.00 mi2.00 mi4708-4242919-200672-505310(Top 81%)3167(Top 88%)723(Top 91%)
8M8.00 mi2.00 mi4466+2422829+90647+254051(Top 62%)2617(Top 72%)592(Top 74%)
9.6M9.60 mi1.60 mi4727-2612921-92670-235456(Top 83%)3136(Top 87%)711(Top 89%)
10M10.00 mi0.40 mi4690+372898+23657+134364(Top 66%)2660(Top 74%)610(Top 77%)
10.5M10.50 mi0.50 mi4642+482872+26653+43187(Top 48%)2110(Top 58%)507(Top 64%)
12M12.00 mi1.50 mi4511+1312795+77641+124076(Top 62%)2520(Top 70%)585(Top 73%)
Finish13.11 mi1.11 mi4350+1612713+82627+143014(Top 46%)1974(Top 55%)476(Top 60%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 62%
~flat
+5ft-3ft

Overall

4076

Males

2520

M25-29

586

2M→4M

2.0 - 4.0 mi

Top 67%
×4story building
+67ft-69ft

Overall

4419

Males

2772

M25-29

639

4M→6M

4.0 - 6.0 mi

Top 81%
×9story building
+123ft-9ft

Overall

5310

Males

3167

M25-29

725

6M→8M

6.0 - 8.0 mi

Top 62%
×12story building
+166ft-53ft

Overall

4051

Males

2617

M25-29

593

8M→9.6M

8.0 - 9.6 mi

Top 83%
×13story building
+68ft-193ft

Overall

5456

Males

3136

M25-29

712

9.6M→10M

9.6 - 10.0 mi

Top 66%
×2story building
+0ft-24ft

Overall

4364

Males

2660

M25-29

611

10M→10.5M

10.0 - 10.5 mi

Top 48%
×6story building
+1ft-73ft

Overall

3187

Males

2110

M25-29

508

10.5M→12M

10.5 - 12.0 mi

Top 62%
×21story building
+280ft-26ft

Overall

4076

Males

2520

M25-29

586

12M→Finish

12.0 - 13.1 mi

Top 46%
×7story building
+14ft-89ft

Overall

3014

Males

1974

M25-29

476

Passing Analysis

Category:
Athletes Passed
978*
Passed By
1128
Net Change
-150
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4200
2M → 4M148232-84#4200#4284
4M → 6M33*457-424#4284#4708
6M → 8M304*62+242#4708#4466
8M → 9.6M27288-261#4466#4727
9.6M → 10M6124+37#4727#4690
10M → 10.5M546+48#4690#4642
10.5M → 12M187*56+131#4642#4511
12M → Finish164*3+161#4511#4350
TOTALS978*1128-150

* 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