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SF MARATHON 1ST HALF 2026

Matthew Buck

San Jose, CA

Bib: 15745 M 31

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 19%
Gender (Male)
#0 / 3619
Top 27%
Division (M30-34)
#0 / 772
Top 28%
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
8:52/mi
17:45
→ flat
12 ft elev
4M
8:55/mi
35:35
↑ 67↓ 69
10 ft elev
6M
9:20/mi
54:15
↑ 1231.1%
126 ft elev
8M
8:26/mi
1:11:08
↑ 166↓ 531.1%
246 ft elev
9.6M
8:26/mi
1:24:38
↑ 68↓ 1931.5%
126 ft elev
10M
14:56/mi
1:30:36
↓ 241.1%
90 ft elev
10.5M
4:06/mi
1:32:39
↓ 732.7%
18 ft elev
12M
12:23/mi
1:51:14
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
8:38/mi
2:00:48
↑ 14↓ 891.3%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time54:15
Pace9:03 /mi
2nd Half
Distance7.11 mi
Time1:06:33
Pace9:22 /mi
📊Positive Split: 22.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:58:5617:458:5217:45
8:52
-
4M
4.00 mi07:16:4635:358:5417:50
8:55
+0:03
6M
6.00 mi07:35:2654:159:0318:40
9:20
+0:25
8M
8.00 mi07:52:191:11:088:5316:53
8:26
-0:54
9.6M
9.60 mi08:05:491:24:388:4913:30
8:26
0:00
10M
10.00 mi08:11:471:30:369:045:58
14:56
+6:30
10.5M
10.50 mi08:13:501:32:398:492:03
4:06
-10:50
12M
12.00 mi08:32:251:51:149:1618:35
12:23
+8:17
Finish
13.11 mi08:41:592:00:489:139:34
8:38
-3:45

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

4:06 /mi

Average Pace

9:13 /mi

Slowest Pace

14:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03

2% of race

Time at Steady Pace

1:34:12

78% of race

Time at Slower Pace

24:33

20% of race

Average Pace: 9:13 /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 mi06:58:5617:458:5217:45
8:52
#1358
4M
4.00 mi07:16:4635:358:5417:50
8:55
#1337
6M
6.00 mi07:35:2654:159:0318:40
9:20
#1503
8M
8.00 mi07:52:191:11:088:5316:53
8:26
#1215
9.6M
9.60 mi08:05:491:24:388:4913:30
8:26
#1335
10M
10.00 mi08:11:471:30:369:045:58
14:56
#1249
10.5M
10.50 mi08:13:501:32:398:492:03
4:06
#1234
12M
12.00 mi08:32:251:51:149:1618:35
12:23
#1274
Finish
13.11 mi08:41:592:00:489:139:34
8:38
#1236
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 10%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:01

Segment Time

8:55/mi

Pace

0.90 mi

Distance

Overall

656

Men

537

Division

119

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi2.00 mi135810512271492(Top 23%)1093(Top 30%)248(Top 32%)
4M4.00 mi2.00 mi1337+211039+12228-11304(Top 20%)1022(Top 28%)229(Top 30%)
6M6.00 mi2.00 mi1503-1661166-127260-321830(Top 28%)1365(Top 38%)304(Top 39%)
8M8.00 mi2.00 mi1215+288980+186214+46764(Top 12%)648(Top 18%)134(Top 17%)
9.6M9.60 mi1.60 mi1335-1201051-71233-192053(Top 31%)1350(Top 37%)292(Top 38%)
10M10.00 mi0.40 mi1249+86994+57218+15697(Top 11%)553(Top 15%)121(Top 16%)
10.5M10.50 mi0.50 mi1234+15982+12214+4836(Top 13%)674(Top 19%)153(Top 20%)
12M12.00 mi1.50 mi1274-401002-20219-51492(Top 23%)1093(Top 30%)248(Top 32%)
Finish13.11 mi1.11 mi1236+38978+24214+51223(Top 19%)945(Top 26%)213(Top 28%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 23%
~flat
+5ft-3ft

Overall

1492

Males

1093

M30-34

249

2M→4M

2.0 - 4.0 mi

Top 20%
×4story building
+67ft-69ft

Overall

1304

Males

1022

M30-34

231

4M→6M

4.0 - 6.0 mi

Top 28%
×9story building
+123ft-9ft

Overall

1830

Males

1365

M30-34

305

6M→8M

6.0 - 8.0 mi

Top 12%
×12story building
+166ft-53ft

Overall

764

Males

648

M30-34

135

8M→9.6M

8.0 - 9.6 mi

Top 31%
×13story building
+68ft-193ft

Overall

2053

Males

1350

M30-34

293

9.6M→10M

9.6 - 10.0 mi

Top 11%
×2story building
+0ft-24ft

Overall

697

Males

553

M30-34

122

10M→10.5M

10.0 - 10.5 mi

Top 13%
×6story building
+1ft-73ft

Overall

836

Males

674

M30-34

154

10.5M→12M

10.5 - 12.0 mi

Top 23%
×21story building
+280ft-26ft

Overall

1492

Males

1093

M30-34

249

12M→Finish

12.0 - 13.1 mi

Top 19%
×7story building
+14ft-89ft

Overall

1223

Males

945

M30-34

213

Passing Analysis

Category:
Athletes Passed
638*
Passed By
516
Net Change
+122
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1358
2M → 4M8766+21#1358#1337
4M → 6M27193-166#1337#1503
6M → 8M2968+288#1503#1215
8M → 9.6M38158-120#1215#1335
9.6M → 10M882+86#1335#1249
10M → 10.5M150+15#1249#1234
10.5M → 12M3575-40#1234#1274
12M → Finish52*14+38#1274#1236
TOTALS638*516+122

* 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