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SF MARATHON 1ST HALF 2026

David Mac

Bib: 13774•M•Age: 38

SAN LORENZO, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Male)
#0 / 3619
Division (M35-39)
#0 / 582
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
10:30/mi
21:00
→ flat
4M
10:24/mi
41:48
↑ 67↓ 69
6M
10:23/mi
1:02:34
↑ 1231.1%
8M
11:12/mi
1:24:58
↑ 166↓ 531.1%
9.6M
11:12/mi
1:42:54
↑ 68↓ 1931.5%
10M
19:06/mi
1:50:32
↓ 241.1%
10.5M
5:12/mi
1:53:08
↓ 732.7%
12M
14:23/mi
2:14:43
↑ 2803.2%
Finish· 13.11 mi
10:16/mi
2:26:06
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:02:34
Pace10:26 /mi
2nd Half
Distance7.11 mi
Time1:23:32
Pace11:45 /mi
📊Positive Split: 33.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:04:5621:0010:3021:00
10:30
-
4M
4.00 mi07:25:4441:4810:2720:48
10:24
-0:06
6M
6.00 mi07:46:301:02:3410:2620:46
10:23
-0:01
8M
8.00 mi08:08:541:24:5810:3722:24
11:12
+0:49
9.6M
9.60 mi08:26:501:42:5410:4317:56
11:12
0:00
10M
10.00 mi08:34:281:50:3211:037:38
19:06
+7:54
10.5M
10.50 mi08:37:041:53:0810:462:36
5:12
-13:54
12M
12.00 mi08:58:392:14:4311:1421:35
14:23
+9:11
Finish
13.11 mi09:10:022:26:0611:0911:23
10:16
-4:07

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

11:09 /mi

Slowest Pace

19:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36

2% of race

Time at Steady Pace

1:54:17

78% of race

Time at Slower Pace

29:13

20% of race

Average Pace: 11:09 /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 mi07:04:5621:0010:3021:00
10:30
#3922
4M
4.00 mi07:25:4441:4810:2720:48
10:24
#3617
6M
6.00 mi07:46:301:02:3410:2620:46
10:23
#3383
8M
8.00 mi08:08:541:24:5810:3722:24
11:12
#3466
9.6M
9.60 mi08:26:501:42:5410:4317:56
11:12
#3775
10M
10.00 mi08:34:281:50:3211:037:38
19:06
#3689
10.5M
10.50 mi08:37:041:53:0810:462:36
5:12
#3690
12M
12.00 mi08:58:392:14:4311:1421:35
14:23
#3557
Finish
13.11 mi09:10:022:26:0611:0911:23
10:16
#3500
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 47%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:14

Segment Time

11:22/mi

Pace

0.90 mi

Distance

Overall

3085

Men

2045

Division

350

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi392225444273058(Top 47%)2005(Top 55%)341(Top 59%)
4M4.00 mi2.00 mi3617+3052382+162407+203378(Top 51%)2257(Top 62%)386(Top 66%)
6M6.00 mi2.00 mi3383+2342253+129377+303135(Top 48%)2132(Top 59%)358(Top 62%)
8M8.00 mi2.00 mi3466-832306-53387-103769(Top 57%)2461(Top 68%)416(Top 71%)
9.6M9.60 mi1.60 mi3775-3092464-158411-245220(Top 79%)3016(Top 83%)497(Top 85%)
10M10.00 mi0.40 mi3689+862415+49403+83032(Top 46%)2017(Top 56%)341(Top 59%)
10.5M10.50 mi0.50 mi3690-12417-2405-23664(Top 56%)2368(Top 65%)395(Top 68%)
12M12.00 mi1.50 mi3557+1332335+82395+103058(Top 47%)2005(Top 55%)341(Top 59%)
Finish13.11 mi1.11 mi3500+572302+33389+63204(Top 49%)2082(Top 58%)339(Top 58%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 47%
~flat
+5ft-3ft

Overall

3058

Males

2005

M35-39

341

2M→4M

2.0 - 4.0 mi

Top 51%
×4story building
+67ft-69ft

Overall

3378

Males

2257

M35-39

386

4M→6M

4.0 - 6.0 mi

Top 48%
×9story building
+123ft-9ft

Overall

3135

Males

2132

M35-39

358

6M→8M

6.0 - 8.0 mi

Top 57%
×12story building
+166ft-53ft

Overall

3769

Males

2461

M35-39

416

8M→9.6M

8.0 - 9.6 mi

Top 79%
×13story building
+68ft-193ft

Overall

5220

Males

3016

M35-39

497

9.6M→10M

9.6 - 10.0 mi

Top 46%
×2story building
+0ft-24ft

Overall

3032

Males

2017

M35-39

341

10M→10.5M

10.0 - 10.5 mi

Top 56%
×6story building
+1ft-73ft

Overall

3664

Males

2368

M35-39

395

10.5M→12M

10.5 - 12.0 mi

Top 47%
×21story building
+280ft-26ft

Overall

3058

Males

2005

M35-39

341

12M→Finish

12.0 - 13.1 mi

Top 49%
×7story building
+14ft-89ft

Overall

3204

Males

2082

M35-39

339

Passing Analysis

Category:
Athletes Passed
1067*
Passed By
645
Net Change
+422
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3922
2M → 4M35146+305#3922#3617
4M → 6M265*31+234#3617#3383
6M → 8M108*191-83#3383#3466
8M → 9.6M2311-309#3466#3775
9.6M → 10M9610+86#3775#3689
10M → 10.5M1011-1#3689#3690
10.5M → 12M166*33+133#3690#3557
12M → Finish69*12+57#3557#3500
TOTALS1067*645+422

* 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